Which structure contains a cell nucleus

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.

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

What type of pollution does household garbage cause