When organisms ingest food, the food is converted into which substance?

a. adenosine triphosphate (atp)
b. carbon dioxide
c. oxygen
d. deoxyribonucleic acid (dna)

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Which type of stimulus do mechanoreceptors detect? sound pain heat light