4 because osmosis does not require energy
They release CO2 (just like us, when we breathe). But, when plants are photosynthesizing. They release the oxygen through the same pores that allow the CO2 to enter their leaf cells.
Eukaryota Is The Correct Answer
Animal cells do not have a cell wall or chloroplasts but plant cells do. This is just one example there are several ways. <span />
