Which of the following is a difference between food chains and food webs? food webs contain both plants and animals, but food chains contain only plants. food webs separate organisms by trophic level, but food chains do not. food chains show energy flow in an ecosystem, and food webs do not. food chains are linear, while food webs are complex.

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

What processes take place before the mature mrna exits the nucleus?

What material did the moon come from?