What farming practices have depleted grasslands in North America ?

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

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.

This group of organisms perform the process of ammonifcation. a. herbivores b. decomposers c. carnivores c. plants