A(n) is an unlearned reaction to an unconditioned stimulus that occurs without any previous conditioning.

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

How does photosynthesis show the conservation of mass and energy?

Describe the layers of the suns atmosphere?