Photosynthesis and Respiration (38 pts) 1) Plants are photoautotrophs. Which of the following apply to organisms that use this form of nutrition? Circle the correct choice(s) (4 pts) a) They utilize light energy to break down organic carbon molecules like sugars to make ATP b) In the presence of light, mineral nutrients and CO2, they make all necessary organic molecules and forms of chemical energy needed to sustain life c) They are the primary producers (first trophic level) in most ecosystems d) They have no need for aerobic respiration