how might a geologist study the history of earth?

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

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.

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear