Answer: To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
A is the answer. If this works, message me!
They all regulate and support your body’s functions. They all work together by stabilizing each detail and movement of your body and keeps it functioning.
Heterotrophs depend on autotrophs for food (energy). Autotrophs don't neccessarily depend on heterotrophs. In some cases heterotrophs may spread their seeds, such as a bee spreading pollen, so in that case they would.