What is the circulation of lichens?
Artic
Global
Tropical
Unplanned

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.

How does human environment effect the biosphere

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.