Ecosystems Unit Review 3 (4th)

Which result is most likely if the number of trees decrease in a squirrel population’s habitat?

• a decrease in the squirrel population due to less food

• an increase in the squirrel population due to more food

• an increase in the squirrel population due to less water

• a decrease in the squirrel population due to more sunlight

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Which example is an inherited behavior?

• A dog brings the ball to his owner to throw.

• A racoon turns over a trash can to find food.

• A bear hibernates through the winter.

• A baby duck copies his mother to learn to find food.

Which of the following is an example of camouflage?

• A moth looks just like a leaf, making it harder for predators to see.

• A lizard is the same color as the leaves of a plant, making it harder for predators to see.

• A butterfly looks almost just like another poisonous butterfly so predators leave it alone.

• A snake hibernates through the winter.

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As seasons change from summer to fall, which survival instinct is most likely to occur in the forest?

• Snakes prepare to hibernate.

• Squirrels eat less food.

• Birds prepare to fly north.

• Bats hunt for food during the day.

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Which behavior will occur in the spring?

• Frogs will hibernate.

• Birds will migrate north.

• Squirrels will eat all the nuts.

• Birds will build nests and lay eggs.

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Which is an example of protective resemblance?

• A butterfly looks like another poisonous butterfly so predators leave it alone.

• An insect looks just like a stick so its is protected from predators.

• A frog is the same color as a leaf which protects him.

• A puffer fish inflates when it is attacked by a predator.

Which of the following is a predator in this food chain?

• frog

• grasshopper

• fungi

• grass

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In this food chain, what would most likely happen to the caterpillar population if there was an increase in the small bird population?

• The caterpillar population would stay the same.

• The caterpillar population would decrease.

• The caterpillar population would increase.

• The caterpillar population would begin eating the small birds.

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A deer in the woods hears a loud noise. How will the deer most likely react after hearing the noise?

• ignore the noise

• stop and stay still

• stop and then run

• run toward the noise

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NGSS.MS-LS1-8

A deer in the woods hears a loud noise. How will the deer most likely react after hearing the noise?

• ignore the noise

• stop and stay still

• stop and then run

• run toward the noise

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NGSS.MS-LS1-8