An ecosystem is made of both biotic and
abiotic things. Which describes the biotic
part of the ecosystem?

A. plants that grow in soil

B. the animals that breathe oxygen

C. all living things in the environment

D. plants and animals that live in water

Compare the composition of the moon's surface with the composition of the earth's surface.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

_is a product of the first stage of photosynthesis.atpglucosecarbon dioxidewater