6th grade- unit 8

Match it! Select the correct answer from the pull down...Good luck!

bacteria play an important role in the

Plants are able to use the energy of sunlight to convert carbon dioxide and water into carbohydrates and _______ in photosynthesis.

Animals get the nitrogen they need by eating plants or other animals that contain nitrogen

The movement of nitrogen through the ecosystem is called the

Plants are involved in one half, and animals in the other half of the

The algae in the oceans and other water bodies replace about _____ % of all oxygen used on our planet

Without bacteria, nitrogen could still enter living things or be returned to the environment

A drought in a grassland ecosystem would not affect the wolves because they do not need plants to survive