Life Science Quiz 1

1. Sheep eat grass and other plants to stay alive, but do not eat animals. What kind of animals are sheep?

Carnivores

Producers

Herbivores

Decomposers

Sheep are herbivores because they eat grass and other plants to survive, but they do not consume animals. Herbivores are animals that primarily feed on plants and vegetation, obtaining their nutrients from these sources.

Explanation

Sheep are herbivores because they eat grass and other plants to survive, but they do not consume animals. Herbivores are animals that primarily feed on plants and vegetation, obtaining their nutrients from these sources.

2. Which of the following lists only consumers.

Eagles, snakes, mice

Grass, rabbits, foxes

Acorns, squirrels, owls

Rats, chipmunks, trees

The correct answer is eagles, snakes, mice. This is because eagles, snakes, and mice are all animals that consume other organisms for energy, making them consumers in a food chain or food web.

Explanation

The correct answer is eagles, snakes, mice. This is because eagles, snakes, and mice are all animals that consume other organisms for energy, making them consumers in a food chain or food web.

3. Omnivores eat

Only plants

Only other consumers

Plants and animals

Only animals

Omnivores are organisms that have a flexible diet and can consume both plants and animals. They are not restricted to eating only plants or only animals, but instead have the ability to obtain nutrients from both sources. This adaptability allows omnivores to thrive in a variety of environments and ensures they have a diverse and balanced diet.

Explanation

Omnivores are organisms that have a flexible diet and can consume both plants and animals. They are not restricted to eating only plants or only animals, but instead have the ability to obtain nutrients from both sources. This adaptability allows omnivores to thrive in a variety of environments and ensures they have a diverse and balanced diet.

4. The role of a decomposer is to

Consume extra sunlight out off by the sun

Put nutiients back into the envirnoment, which are need by plants.

Produce energy through the process of photosynthesis

Make food for cunsumers

The correct answer is "put nutrients back into the environment, which are needed by plants." Decomposers play a crucial role in breaking down dead organic matter and recycling nutrients back into the soil. They break down complex organic compounds into simpler forms, releasing essential nutrients such as nitrogen, phosphorus, and carbon back into the environment. These nutrients are then taken up by plants for their growth and development. Decomposers help to maintain nutrient cycles and ensure the availability of essential nutrients for the entire ecosystem.

Explanation

The correct answer is "put nutrients back into the environment, which are needed by plants." Decomposers play a crucial role in breaking down dead organic matter and recycling nutrients back into the soil. They break down complex organic compounds into simpler forms, releasing essential nutrients such as nitrogen, phosphorus, and carbon back into the environment. These nutrients are then taken up by plants for their growth and development. Decomposers help to maintain nutrient cycles and ensure the availability of essential nutrients for the entire ecosystem.

5. Which is not true about an ecosystem.

Animals in an ecosystem generally live in balnce with one another.

All food from an ecosytem can be traced back to producers

Food chains and food webs are diagrams that show how energy flows in an ecosystem

Ecosystems are only made up of only living things.

Ecosystems are not only made up of living things. They also consist of non-living components such as air, water, soil, and sunlight, which are essential for the survival of living organisms. These non-living components interact with the living organisms and play a crucial role in the functioning of the ecosystem. Therefore, it is not true that ecosystems are made up of only living things.

Explanation

Ecosystems are not only made up of living things. They also consist of non-living components such as air, water, soil, and sunlight, which are essential for the survival of living organisms. These non-living components interact with the living organisms and play a crucial role in the functioning of the ecosystem. Therefore, it is not true that ecosystems are made up of only living things.

6. An example of a food chain is

Grass - rabbit- coyote

Mouse -snake - hawk

Worms- leaves- catipillar- bird

This is an example of a food chain where the grass is the producer, the rabbit is the primary consumer, and the coyote is the secondary consumer. In a food chain, energy flows from one organism to another as they consume each other. The grass provides energy to the rabbit, and in turn, the rabbit provides energy to the coyote. This example demonstrates the transfer of energy and nutrients through different trophic levels in an ecosystem.

Explanation

This is an example of a food chain where the grass is the producer, the rabbit is the primary consumer, and the coyote is the secondary consumer. In a food chain, energy flows from one organism to another as they consume each other. The grass provides energy to the rabbit, and in turn, the rabbit provides energy to the coyote. This example demonstrates the transfer of energy and nutrients through different trophic levels in an ecosystem.