Answer:
highlighted in bold above, are a struggle for existence, variation and inheritance
Explanation:
i hope this helps
B.haploid cells are formed
During photosynthesis, the plant needs carbon dioxide and water-- both of which are released into the air during respiration. And during respiration, the plant needs oxygen and glucose, which are both produced through photosynthesis!
Nitrogen and hydrogen
N2 +3 H2 ---> 2NH3
hope that answers the question:)
