Ecosystem Formative Study Guide

Screech owls nest in holes in trees. They eat mice and crickets. Where would a screech owl most likely live?

• a beach

• a forest

• a desert

• a rainforest

Coconut palm trees can be found in large populations in Florida and other tropical areas. Which factor is the most likely reason coconut palm trees have trouble growing in the states to the far north?

• less rainfall

• less sunlight

• cooler climate

• poor soil nutrients

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Which comparison of ecosystems is true?

• Tundras are warmer than grasslands.

• Grasslands get more rain than deserts.

• Deserts have more plants than rainforests.

• Rainforests are rockier than tundras.

Kyla created a model of a land-based ecosystem for her science project. In her model, she included photographs of a black bear, deer, ferns, and shrubs. Which land-based ecosystem did Kyla create for her science project?

• deciduous forest

• grassland

• mountain

• tropical rainforest

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Analyze the bar graphs. How does the amount of rainfall influence the plants in the ecosystem?

• As less rain falls, more plants grow.

• The plant population stays the same regardless of rainfall.

• As more rain falls, less plants grow.

• As more rain falls, more plants grow.

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The diagram represents a food web. Which animal will be negatively impacted first if the frog population decreases?

• cricket

• deer

• mouse

• owl

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Analyze the food chain provided. If polar bears were removed from this food chain, the population of which organisms would increase first?

• arctic fox

• blueberry bushes

• ptarmigan bird

• producers

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The picture shows a food chain. How many consumers are there in the food chain?

• 1

• 2

• 3

• 4

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Use the food web in the diagram to answer the question. In which group are all of the species producers?

• grain, carrot, and grass

• owl, fox, and bird

• carrot, rabbit, and fox

• mice, grasshopper, and bird

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Which organism is responsible for recycling nutrients back into the soil?

• caterpillar

• grass

• mushroom

• snake

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