Answer:
they use to live
Explanation:
As they breath out carbon dioxide the plants take in the carbon dioxide and make air with it. Animals also use air to do their day to day things like eat.
<span>Yes, if the photo receptor cells and simple eyes that preceded it were useful to the animals in which they arose.</span>
6CO2 + 6H2O --> C6H12O6 + 6O2
carbon dioxide + water --> glucose + oxygen
The arrow indicates sunlight (energy).
:)
Organism in an eniornment can compte for food
