Grade 4, Unit 5: Ecosystems - Section 1

What does this image show?

• Organism

• Ecosystem

• Community

• Population

What does this image show?

• Organism

• Ecosystem

• Community

• Population

What does this image show?

• Organism

• Ecosystem

• Community

• Population

What makes up the cardinal population in Prince William Forest Park?

• all the birds in Virginia

• all the cardinals that live in Prince William Forest Park

• all the living and nonliving components on the edge of the forest

• only the living things on the edge of the forest.

Which of the following would be part of the community in which the cardinals live? Select ALL the correct answers.

• trees

• water

• rocks

• other birds

Which three (3) nonliving components would be found in an ecosystem?

• Water

• Sunlight

• Soil

• Plants

• Decomposers

Complete the sentence using the word bank below to make it true. The energy in an ecosystem comes from (a)   and is used by producers, which are eaten by consumers. Energy is returned to the nutrient pool through (b)   . Word Bank: producers, consumers, the sun, decomposers

• the sun
• producers

• consumers

• decomposers

Where is the greatest amount of energy in an ecosystem?

• in the producers

• in the consumers

• in the decomposers

• in the air

All species of plants and animals, including humans, require four things in their habitat. Select the four (4) requirements from the list below.

• food

• shelter

• space

• water

• decomposers

Look at the “Butterfly Life Cycle” diagram below. Based on this diagram, which two (2) statements are true?

• All organisms start as eggs.

• An organism’s niche may change at different stages of its life cycle.

• A butterfly eats eggs and caterpillars eat leaves.

• An organism’s food sources may change at different stages of its life cycle.