1. Explain why both autotrophs and heterotrophs depend on photosynthesis to obtain the energy
they need for life processes.

Autotrophs depend on photosynthesis to get the energy(ATP & NADPH) by converting light energy from the sun into chemical energy in the form of organic compounds, which they need to survive. Heterotrophs can only obtain that energy by consuming an autotroph; which depends on photosynthesis.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.