from xv.biology.managers import FoodChainManager
from xv.util import listAttr

ke = FoodChainManager(verbose = False)
ke

2188141915200@FoodChainManager

FoodChainManager
Example:
ke = FoodChainManager()
ke.getRandomProblem()
ke.getRandomProblem(problem_type = 0)
...

ke.printProblem()
ke.printAnswer()
ke.printSolution()

ke.printProblemTypes()

ke.printProblemTypes()

0. _problem_introduction
1. _problem_random_question_from_rich_text

ke.getRandomProblem(problem_type = 1)

Insert the sentence in the passage below. Use punctuation if needed.
Pesticides and heavy metals like mercury, arsenic, and lead tend to be consumed in small quantities by the primary consumers.

Passage
Bioaccumulation: In addition to being less energy efficient, eating higher up the food chain has its risks. These toxins get stored in the fats of the animal. When this animal is eaten by a secondary consumer, these toxins become more concentrated because secondary consumers eat lots of primary consumers, and often live longer too. Swordfish and tuna are near the top of the aquatic food chain and, when we eat them, we are consuming all of the toxins that they have accumulated over a lifetime. For this reason, pregnant women are advised against eating these foods.

ke.printAnswer()

Bioaccumulation: In addition to being less energy efficient, eating higher up the food chain has its risks.

Pesticides and heavy metals like mercury, arsenic, and lead tend to be consumed in small quantities by the primary consumers.

These toxins get stored in the fats of the animal. When this animal is eaten by a secondary consumer, these toxins become more concentrated because secondary consumers eat lots of primary consumers, and often live longer too. Swordfish and tuna are near the top of the aquatic food chain and, when we eat them, we are consuming all of the toxins that they have accumulated over a lifetime. For this reason, pregnant women are advised against eating these foods.

ke.printSolution()

Bioaccumulation: In addition to being less energy efficient, eating higher up the food chain has its risks.

Pesticides and heavy metals like mercury, arsenic, and lead tend to be consumed in small quantities by the primary consumers.

These toxins get stored in the fats of the animal. When this animal is eaten by a secondary consumer, these toxins become more concentrated because secondary consumers eat lots of primary consumers, and often live longer too. Swordfish and tuna are near the top of the aquatic food chain and, when we eat them, we are consuming all of the toxins that they have accumulated over a lifetime. For this reason, pregnant women are advised against eating these foods.

from IPython.display import HTML
n = len(ke._problemTemplates)
max_loop = 10
for j in range(0, max_loop):
    for i in range(n):
        problem_type = 1
        display(HTML(f"<h2>problem_type: {problem_type}/{n-1} (loop {j}/{max_loop-1})</h2>"))
        ke.getRandomProblem(problem_type = problem_type, verbose = True)
        display(ke.printProblem())

        display(HTML(f"<h6>Answer:</h6>"))
        display(ke.printAnswer())

        display(HTML(f"<h6>Solution:</h6>"))
        display(ke.printSolution())
        pass

problem_type: 1/1 (loop 0/9)

Problem Template: _problem_random_question_from_rich_text

Sort the sentences into a meaningful order:

1. A food chain also shows how organisms are related to each other by the food they eat.
2. A food chain is a linear network of links in a food web starting from producer organisms (such as grass or algaes which produce their own food via photosynthesis) and ending at an apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria).
3. Each level of a food chain represents a different trophic level.
4. Natural interconnections between food chains make it a food web.
5. A food chain differs from a food web because the complex network of different animals' feeding relations are aggregated and the chain only follows a direct, linear pathway of one animal at a time.

Answer:

A food chain is a linear network of links in a food web starting from producer organisms (such as grass or algaes which produce their own food via photosynthesis) and ending at an apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria). A food chain also shows how organisms are related to each other by the food they eat. Each level of a food chain represents a different trophic level. A food chain differs from a food web because the complex network of different animals' feeding relations are aggregated and the chain only follows a direct, linear pathway of one animal at a time. Natural interconnections between food chains make it a food web.

Solution:

A food chain is a linear network of links in a food web starting from producer organisms (such as grass or algaes which produce their own food via photosynthesis) and ending at an apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria). A food chain also shows how organisms are related to each other by the food they eat. Each level of a food chain represents a different trophic level. A food chain differs from a food web because the complex network of different animals' feeding relations are aggregated and the chain only follows a direct, linear pathway of one animal at a time. Natural interconnections between food chains make it a food web.

problem_type: 1/1 (loop 0/9)

Problem Template: _problem_random_question_from_rich_text

Sort the sentences into a meaningful order:

1. A keystone species is a species that has a large impact on the surrounding environment and can directly affect the food chain.
2. Keystone species keep herbivores from depleting all of the foliage in their environment and preventing mass extinction.
3. Many food webs have a keystone species.
4. If this keystone species dies off it can set the entire food chain off balance.

Answer:

Many food webs have a keystone species. A keystone species is a species that has a large impact on the surrounding environment and can directly affect the food chain. If this keystone species dies off it can set the entire food chain off balance. Keystone species keep herbivores from depleting all of the foliage in their environment and preventing mass extinction.

Solution:

Many food webs have a keystone species. A keystone species is a species that has a large impact on the surrounding environment and can directly affect the food chain. If this keystone species dies off it can set the entire food chain off balance. Keystone species keep herbivores from depleting all of the foliage in their environment and preventing mass extinction.

problem_type: 1/1 (loop 1/9)

Problem Template: _problem_random_question_from_rich_text

Insert the sentence in the passage below. Use punctuation if needed.
The food chain is an energy source diagram.

Passage
A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web. The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers. For example, a food chain might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a secondary consumer such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.

Answer:

A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web.

The food chain is an energy source diagram.

The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers. For example, a food chain might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a secondary consumer such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.

Solution:

A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web.

The food chain is an energy source diagram.

The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers. For example, a food chain might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a secondary consumer such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.

problem_type: 1/1 (loop 1/9)

Problem Template: _problem_random_question_from_rich_text

The words have been interchanged. Please put them in proper places.
habitat, animals, food chain
Plants that have photosynthesis are supplying us with the first product of the animals. Not only that, they are the source for oxygen, the food we eat, our clothes, and even our furniture, among other things. Plants also remove greenhouse gas from the air, provide habitat to many food chain.
habitat, animals, food chain

Answer:

Plants that have photosynthesis are supplying us with the first product of the food chain. Not only that, they are the source for oxygen, the food we eat, our clothes, and even our furniture, among other things. Plants also remove greenhouse gas from the air, provide habitat to many animals.

Solution:

Plants that have photosynthesis are supplying us with the first product of the food chain. Not only that, they are the source for oxygen, the food we eat, our clothes, and even our furniture, among other things. Plants also remove greenhouse gas from the air, provide habitat to many animals.

problem_type: 1/1 (loop 2/9)

Problem Template: _problem_random_question_from_rich_text

Fill in the blanks with the given words. Change the form of words if necessary.
producer, consumer, food web, consumers
The page also contains names and definitions of terms used to describe the 'players' in the food chain- __________, __________, herbivores. You can also refer to the diagrammatic representations of food chains, __________ and ecological pyramids.
producer, consumer, food web, consumers

Answer:

The page also contains names and definitions of terms used to describe the 'players' in the food chain- producers, consumers, herbivores. You can also refer to the diagrammatic representations of food chains, food webs and ecological pyramids.

Solution:

The page also contains names and definitions of terms used to describe the 'players' in the food chain- producers, consumers, herbivores. You can also refer to the diagrammatic representations of food chains, food webs and ecological pyramids.

problem_type: 1/1 (loop 2/9)

Problem Template: _problem_random_question_from_rich_text

Sort the following into a meaningful sentence:

1. eat both animals and
2. animals and people who
3. plants are called omnivores

Answer:

Animals and people who eat both animals and plants are called omnivores.

Solution:

Animals and people who eat both animals and plants are called omnivores.

problem_type: 1/1 (loop 3/9)

Problem Template: _problem_random_question_from_rich_text

Insert the sentence in the passage below. Use punctuation if needed.
A rabbit eats the grass.

Passage
For example, grass produces its own food from sunlight. A fox eats the rabbit. When the fox dies, bacteria break down its body, returning it to the soil where it provides nutrients for plants like grass.

Answer:

For example, grass produces its own food from sunlight.

A rabbit eats the grass.

A fox eats the rabbit. When the fox dies, bacteria break down its body, returning it to the soil where it provides nutrients for plants like grass.

Solution:

For example, grass produces its own food from sunlight.

A rabbit eats the grass.

A fox eats the rabbit. When the fox dies, bacteria break down its body, returning it to the soil where it provides nutrients for plants like grass.

problem_type: 1/1 (loop 3/9)

Problem Template: _problem_random_question_from_rich_text

Sort the following into a meaningful sentence:

1. and philosopher in the century and later popularized in
2. food chains were first introduced by the arab scientist
3. introduced the food web concept
4. a book published in by charles elton which also

Answer:

Food chains were first introduced by the Arab scientist and philosopher Al-Jahiz in the 10th century and later popularized in a book published in 1927 by Charles Elton, which also introduced the food web concept.

Solution:

Food chains were first introduced by the Arab scientist and philosopher Al-Jahiz in the 10th century and later popularized in a book published in 1927 by Charles Elton, which also introduced the food web concept.

problem_type: 1/1 (loop 4/9)

Problem Template: _problem_random_question_from_rich_text

The words have been interchanged. Please put them in proper places.
predators, primary consumer, food chain, secondary consumer
A common metric used to quantify food web trophic structure is secondary consumer length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web. The secondary consumer is an energy source diagram. The secondary consumer begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a predators, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top food chain known as the quaternary consumers. For example, a secondary consumer might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a predators such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.
predators, primary consumer, food chain, secondary consumer

Answer:

A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web. The food chain is an energy source diagram. The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers. For example, a food chain might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a secondary consumer such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.

Solution:

A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web. The food chain is an energy source diagram. The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers. For example, a food chain might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a secondary consumer such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.

problem_type: 1/1 (loop 4/9)

Problem Template: _problem_random_question_from_rich_text

Fill in the blanks with the given words. Change the form of words if necessary.
apex predators, predator, competition, prey
__________: These species are at the top of the food chain and the healthy adults have no natural __________. The young and old may in some cases be __________ upon, but they typically succumb to disease, hunger, the effects of aging, or some combination of them. The also suffer from __________ with humans, who often eliminate the top __________ in order to have exclusive access to the __________ species, or through habitat destruction, which is an indirect form of __________.
apex predators, predator, competition, prey

Answer:

Apex Predators: These species are at the top of the food chain and the healthy adults have no natural predators. The young and old may in some cases be preyed upon, but they typically succumb to disease, hunger, the effects of aging, or some combination of them. The also suffer from competition with humans, who often eliminate the top predators in order to have exclusive access to the prey species, or through habitat destruction, which is an indirect form of competition.

Solution:

Apex Predators: These species are at the top of the food chain and the healthy adults have no natural predators. The young and old may in some cases be preyed upon, but they typically succumb to disease, hunger, the effects of aging, or some combination of them. The also suffer from competition with humans, who often eliminate the top predators in order to have exclusive access to the prey species, or through habitat destruction, which is an indirect form of competition.

problem_type: 1/1 (loop 5/9)

Problem Template: _problem_random_question_from_rich_text

The words have been interchanged. Please put them in proper places.
omnivores, consumer, animals, consumers
Consumers can be carnivores (animals that eat other animals) or omnivores (animals that eat both plants and animals). Omnivores, like people, consume many types of foods. People eat plants, such as vegetables and fruits. We also eat animals and animal products, such as meat, milk, and eggs. We eat fungi, such as mushrooms. We also eat algae, in edible seaweeds like nori (used to wrap sushi rolls) and sea lettuce (used in salads).
omnivores, consumer, animals, consumers

Answer:

Consumers can be carnivores (animals that eat other animals) or omnivores (animals that eat both plants and animals). Omnivores, like people, consume many types of foods. People eat plants, such as vegetables and fruits. We also eat animals and animal products, such as meat, milk, and eggs. We eat fungi, such as mushrooms. We also eat algae, in edible seaweeds like nori (used to wrap sushi rolls) and sea lettuce (used in salads).

Solution:

Consumers can be carnivores (animals that eat other animals) or omnivores (animals that eat both plants and animals). Omnivores, like people, consume many types of foods. People eat plants, such as vegetables and fruits. We also eat animals and animal products, such as meat, milk, and eggs. We eat fungi, such as mushrooms. We also eat algae, in edible seaweeds like nori (used to wrap sushi rolls) and sea lettuce (used in salads).

problem_type: 1/1 (loop 5/9)

Problem Template: _problem_random_question_from_rich_text

Fill in the blanks with the given words. Change the form of words if necessary.
phytoplankton, organisms, autotrophs
Plants are the most familiar type of autotroph, but there are many other kinds. Algae, whose larger forms are known as seaweed, are autotrophic. __________, tiny __________ that live in the ocean, are also __________. Some types of bacteria are __________. For example, bacteria living in active volcanoes use sulfur compounds to produce their own food. This process is called chemosynthesis.
phytoplankton, organisms, autotrophs

Answer:

Plants are the most familiar type of autotroph, but there are many other kinds. Algae, whose larger forms are known as seaweed, are autotrophic. Phytoplankton, tiny organisms that live in the ocean, are also autotrophs. Some types of bacteria are autotrophs. For example, bacteria living in active volcanoes use sulfur compounds to produce their own food. This process is called chemosynthesis.

Solution:

Plants are the most familiar type of autotroph, but there are many other kinds. Algae, whose larger forms are known as seaweed, are autotrophic. Phytoplankton, tiny organisms that live in the ocean, are also autotrophs. Some types of bacteria are autotrophs. For example, bacteria living in active volcanoes use sulfur compounds to produce their own food. This process is called chemosynthesis.

problem_type: 1/1 (loop 6/9)

Problem Template: _problem_random_question_from_rich_text

Insert the sentence in the passage below. Use punctuation if needed.
Therefore, when the herbivore is eaten by a carnivore, it passes only a small amount of total energy (that it has received) to the carnivore.

Passage
In a food chain, energy is passed from one link to another. When a herbivore eats, only a fraction of the energy (that it gets from the plant food) becomes new body mass; the rest of the energy is lost as waste or used up by the herbivore to carry out its life processes (e.g., movement, digestion, reproduction). Of the energy transferred from the herbivore to the carnivore, some energy will be "wasted" or "used up" by the carnivore. The carnivore then has to eat many herbivores to get enough energy to grow. Because of the large amount of energy that is lost at each link, the amount of energy that is transferred decreases each time. The further along the food chain you go, the less food (and hence energy) remains available.

Answer:

In a food chain, energy is passed from one link to another. When a herbivore eats, only a fraction of the energy (that it gets from the plant food) becomes new body mass; the rest of the energy is lost as waste or used up by the herbivore to carry out its life processes (e.g., movement, digestion, reproduction).

Therefore, when the herbivore is eaten by a carnivore, it passes only a small amount of total energy (that it has received) to the carnivore.

Of the energy transferred from the herbivore to the carnivore, some energy will be "wasted" or "used up" by the carnivore. The carnivore then has to eat many herbivores to get enough energy to grow. Because of the large amount of energy that is lost at each link, the amount of energy that is transferred decreases each time. The further along the food chain you go, the less food (and hence energy) remains available.

Solution:

In a food chain, energy is passed from one link to another. When a herbivore eats, only a fraction of the energy (that it gets from the plant food) becomes new body mass; the rest of the energy is lost as waste or used up by the herbivore to carry out its life processes (e.g., movement, digestion, reproduction).

Therefore, when the herbivore is eaten by a carnivore, it passes only a small amount of total energy (that it has received) to the carnivore.

Of the energy transferred from the herbivore to the carnivore, some energy will be "wasted" or "used up" by the carnivore. The carnivore then has to eat many herbivores to get enough energy to grow. Because of the large amount of energy that is lost at each link, the amount of energy that is transferred decreases each time. The further along the food chain you go, the less food (and hence energy) remains available.

problem_type: 1/1 (loop 6/9)

Problem Template: _problem_random_question_from_rich_text

Unscramble the word:
prcudreo

The word has been taken from the following paragraph:
A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web. The food chain is an energy source diagram. The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers. For example, a food chain might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a secondary consumer such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.

Answer:

producer

Solution:

producer

A common metric used to quantify food web trophic structure is food chain length. In its simplest form, the length of a chain is the number of links between a trophic consumer and the base of the web. The mean chain length of an entire web is the arithmetic average of the lengths of all chains in the food web. The food chain is an energy source diagram. The food chain begins with a producer, which is eaten by a primary consumer. The primary consumer may be eaten by a secondary consumer, which in turn may be consumed by a tertiary consumer. The tertiary consumers may sometimes become prey to the top predators known as the quaternary consumers. For example, a food chain might start with a green plant as the producer, which is eaten by a snail, the primary consumer. The snail might then be the prey of a secondary consumer such as a frog, which itself may be eaten by a tertiary consumer such as a snake which in turn may be consumed by an eagle.

problem_type: 1/1 (loop 7/9)

Problem Template: _problem_random_question_from_rich_text

Unscramble the word:
pretador

The word has been taken from the following paragraph:
The second trophic level consists of organisms that eat the producers. These are called primary consumers, or herbivores. Deer, turtles, and many types of birds are herbivores. Secondary consumers eat the herbivores. Tertiary consumers eat the secondary consumers. There may be more levels of consumers before a chain finally reaches its top predator. Top predators, also called apex predators, eat other consumers.

Answer:

predator

Solution:

predator

The second trophic level consists of organisms that eat the producers. These are called primary consumers, or herbivores. Deer, turtles, and many types of birds are herbivores. Secondary consumers eat the herbivores. Tertiary consumers eat the secondary consumers. There may be more levels of consumers before a chain finally reaches its top predator. Top predators, also called apex predators, eat other consumers.

problem_type: 1/1 (loop 7/9)

Problem Template: _problem_random_question_from_rich_text

The words have been interchanged. Please put them in proper places.
primary consumer, apex predators, herbivores, organisms
The second trophic level consists of herbivores that eat the producers. These are called apex predators, or organisms. Deer, turtles, and many types of birds are organisms. Secondary consumers eat the organisms. Tertiary consumers eat the secondary consumers. There may be more levels of consumers before a chain finally reaches its top predator. Top predators, also called primary consumers, eat other consumers.
primary consumer, apex predators, herbivores, organisms

Answer:

The second trophic level consists of organisms that eat the producers. These are called primary consumers, or herbivores. Deer, turtles, and many types of birds are herbivores. Secondary consumers eat the herbivores. Tertiary consumers eat the secondary consumers. There may be more levels of consumers before a chain finally reaches its top predator. Top predators, also called apex predators, eat other consumers.

Solution:

The second trophic level consists of organisms that eat the producers. These are called primary consumers, or herbivores. Deer, turtles, and many types of birds are herbivores. Secondary consumers eat the herbivores. Tertiary consumers eat the secondary consumers. There may be more levels of consumers before a chain finally reaches its top predator. Top predators, also called apex predators, eat other consumers.

problem_type: 1/1 (loop 8/9)

Problem Template: _problem_random_question_from_rich_text

Insert the sentence in the passage below. Use punctuation if needed.
When these animals eat these plant products, food energy and organic compounds are transferred from the plants to the animals.

Passage
Photosynthesis is only the beginning of the food chain. There are many types of animals that will eat the products of the photosynthesis process. Examples are deer eating shrub leaves, rabbits eating carrots, or worms eating grass.

Answer:

Photosynthesis is only the beginning of the food chain. There are many types of animals that will eat the products of the photosynthesis process. Examples are deer eating shrub leaves, rabbits eating carrots, or worms eating grass.

When these animals eat these plant products, food energy and organic compounds are transferred from the plants to the animals.

Solution:

Photosynthesis is only the beginning of the food chain. There are many types of animals that will eat the products of the photosynthesis process. Examples are deer eating shrub leaves, rabbits eating carrots, or worms eating grass.

When these animals eat these plant products, food energy and organic compounds are transferred from the plants to the animals.

problem_type: 1/1 (loop 8/9)

Problem Template: _problem_random_question_from_rich_text

Insert the sentence in the passage below. Use punctuation if needed.
Keystone Species: In some food webs, there is one critical "keystone species" upon which the entire system depends.

Passage
In the same way that an arch collapses when the keystone is removed, an entire food chain can collapse if there is a decline in a keystone species. Often, the keystone species is a predator that keeps the herbivores in check, and prevents them from overconsuming the plants, leading to a massive die off. When we remove top predators like grizzly bears, orca whales, or wolves, for example, there is evidence that it affects not just the prey species, but even the physical environment.

Answer:

Keystone Species: In some food webs, there is one critical "keystone species" upon which the entire system depends.

In the same way that an arch collapses when the keystone is removed, an entire food chain can collapse if there is a decline in a keystone species. Often, the keystone species is a predator that keeps the herbivores in check, and prevents them from overconsuming the plants, leading to a massive die off. When we remove top predators like grizzly bears, orca whales, or wolves, for example, there is evidence that it affects not just the prey species, but even the physical environment.

Solution:

Keystone Species: In some food webs, there is one critical "keystone species" upon which the entire system depends.

In the same way that an arch collapses when the keystone is removed, an entire food chain can collapse if there is a decline in a keystone species. Often, the keystone species is a predator that keeps the herbivores in check, and prevents them from overconsuming the plants, leading to a massive die off. When we remove top predators like grizzly bears, orca whales, or wolves, for example, there is evidence that it affects not just the prey species, but even the physical environment.

problem_type: 1/1 (loop 9/9)

Problem Template: _problem_random_question_from_rich_text

Fill in the blanks with the given words. Change the form of words if necessary.
animals, omnivores, carnivore, consumers
__________ can be __________ (__________ that eat other __________) or __________ (__________ that eat both plants and __________). __________, like people, consume many types of foods. People eat plants, such as vegetables and fruits. We also eat animals and animal products, such as meat, milk, and eggs. We eat fungi, such as mushrooms. We also eat algae, in edible seaweeds like nori (used to wrap sushi rolls) and sea lettuce (used in salads).
animals, omnivores, carnivore, consumers

Answer:

Consumers can be carnivores (animals that eat other animals) or omnivores (animals that eat both plants and animals). Omnivores, like people, consume many types of foods. People eat plants, such as vegetables and fruits. We also eat animals and animal products, such as meat, milk, and eggs. We eat fungi, such as mushrooms. We also eat algae, in edible seaweeds like nori (used to wrap sushi rolls) and sea lettuce (used in salads).

Solution:

Consumers can be carnivores (animals that eat other animals) or omnivores (animals that eat both plants and animals). Omnivores, like people, consume many types of foods. People eat plants, such as vegetables and fruits. We also eat animals and animal products, such as meat, milk, and eggs. We eat fungi, such as mushrooms. We also eat algae, in edible seaweeds like nori (used to wrap sushi rolls) and sea lettuce (used in salads).

problem_type: 1/1 (loop 9/9)

Problem Template: _problem_random_question_from_rich_text

Sort the sentences into a meaningful order:

1. Keystone species keep herbivores from depleting all of the foliage in their environment and preventing mass extinction.
2. A keystone species is a species that has a large impact on the surrounding environment and can directly affect the food chain.
3. If this keystone species dies off it can set the entire food chain off balance.
4. Many food webs have a keystone species.

Answer:

Many food webs have a keystone species. A keystone species is a species that has a large impact on the surrounding environment and can directly affect the food chain. If this keystone species dies off it can set the entire food chain off balance. Keystone species keep herbivores from depleting all of the foliage in their environment and preventing mass extinction.

Solution:

Many food webs have a keystone species. A keystone species is a species that has a large impact on the surrounding environment and can directly affect the food chain. If this keystone species dies off it can set the entire food chain off balance. Keystone species keep herbivores from depleting all of the foliage in their environment and preventing mass extinction.