5.Which is the first step in photosynthesis?. a. the production of ATP
b. the absorption of light
c. the production of NADPH
d. None of the above

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

What is a long-term benefit of healthy eating?

How do demetri's results show that digestive enzymes are crucial to maintaining homeostasis inside the body?