i think it is rainfall but am not sure...
Answer:
crossing over
Explanation:
This occurs during prophase I and metaphase two of the cell cycle. Two homologous sister chromatids pair up and exchange DNA in order to increase genetic variation.
Answer:
How does a dichotomous key help you identify unknown specimens based on their traits?
Explanation:
see pic for edg
1- A light-dependent reaction
2-A cellular respiration