Which one of the following does not contain calories?
a. carbohydrate
b. alcohol
c. water
d. protein

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.

Why do oceanic plates tend to subduction when colliding with a continental plate

What factors contribute to the effect an environmental toxin has on the human body?