4th Grade Science CFA # 8

What is a food chain?

• A. The flow of energy from one living organism to another.

• B. When the Sun makes photosynthesis for producers.

• C. An animal that consumes only plants.

• D. An animal that is hunted and eaten by other animals.

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How is a food web different from a food chain?

• A. Food webs contains only producers, not consumers.

• B. Food webs do not include decomposers.

• C. Food webs contain many different linked food chains.

• D. Food webs exists in aquatic environment; food chains exists in only desert environments.

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What does a food web represent?

• A. All connections of energy flow throughout all organisms in a habitat.

• B. A single path of energy flow between organisms.

• C. The specific way spiders spin their web.

• D. How carnivores get their food.

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Recently, a family of foxes moved into an area with a large rabbit population. What changes may occur in the ecosystem?

• A. The rabbit population may increase.

• B. The rabbit population may increase first, then decrease.

• C. The rabbit population may decrease.

• D. The rabbit population will remain the same.

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What may happen if the owl was removed from the food web picture?

• A. The insect in the habitat would increase.

• B. The fox population would decrease.

• C. The mice population would increase due to being one of the hawk's food source.

• D. The foxes would die due to no food source.

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Which one is the BEST definition of the word adaptation?

• A. body part or behavior that helps a living thing survive.

• B. A feature that helps a plant survive.

• C. body part that helps a living thing survive.

• D. behavior that helps a living thing survive.

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An example of a physical adaptation is...

• A. A turtle hiding inside its shell.

• B. A rabbit burrowing underground.

• C. The spikes on a porcupine.

• D. A sunflower growing toward the sunlight.

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Which adaptation is an example of a behavioral adaptation?

• A. A turtle having a hard shell to protect it.

• B. A puffer fish puffing up to scare predators.

• C. A duck having webbed feet to help it swim.

• D. A frog having bright colors to warn predators.

An animal's color or pattern to help it blend into its surroundings______

• A. environment

• B. hibernation

• C. mimicry

• D. camouflage

I am an animal that lives in the arctic. I have adaptations that allow me to survive in my environment. Which of the following is an adaptation that will allow me to survive in the arctic?

• A. digging in the ground

• B. thick white fur

• C. speed

• D. short, fluffy tail

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