Question

which process allows the kelp in this image to grow so large?
all of these
photosynthesis
cellular respiration
fermentation

Explanation:

Photosynthesis is the process by which kelp (a type of algae) converts light energy into chemical energy (glucose), which is used for growth. Cellular respiration breaks down glucose to release energy for various cellular activities including growth. Fermentation is an anaerobic process that can also produce energy (though less efficiently than cellular respiration in aerobic conditions) which can contribute to the organism's metabolic needs for growth. So all these processes play a role in the kelp's ability to grow.

Answer:

A. All of these