What happens during photosynthesis?

a. autotrophs consume carbohydrates.
b. heterotrophs consume atp.
c. heterotrophs produce atp.
d. autotrophs produce carbohydrate

Organisms that can capture energy from sunlight or chemicals and use that energy. also called autotrophs organisms that produce their own food use light energy to power chemical reactions which produce carbohydrates.

so i think your answer would be d hope i helped

The rate that would change would be the  searching efficiency/attack rate. there are only two other rates in this model: the  growth rate of prey, and the  predator or consumer mortality rate.the  searching efficiency/attack rate is what indicates how effectively can a predator capture its prey whether in the searching process or actual capturing/attacking process. 

Than y you put it in    biology