Ecosystem Unit #1 Test

Which organisms use the energy from the remains of dead animals and recycle the nutrients back into the environment?

• producers

• omnivores

• herbivores

• decomposers

How is a producer different from a consumer?

• A plant makes its own food

• A consumer makes its own food

• A producer only eats meat

• A consumer only eats plants

Which best describes a correct order of the water cycle?

Which part of the plant is considered to show positive geotropism?

• the stem

• the flower

• the roots

• the leaves

Jessica studied different adaptations of plants. Which adaptation would help a plant collect more energy for photosynthesis?

• deep roots

• short stems

• broad leaves

• large flowers

Biotic factors are ___________________.

Which statement best explains why few plants grow on a tropical rainforest floor?

• they use sunlight to make their own food

• they give off oxygen for animals to breathe

• they provide camouflage for small animals

• they make nutrients available for plants

When conditions are not favorable, plants and seeds enter

When a new seed begins to sprout it is called:

Feeds on the remains of once living things.