Which best explains how photosynthetis is helpful to humans.

What does resonance result in? quieter sounds frequency amplitude louder sounds

Look at the photo of the leaf. which term best describes this leaf?

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.