Answer:
During meiosis Prophase I, crossing over occurs which increases genetic diversity.
Explanation:
The appropriate answer is D. Alfalfa. Alfalfa is a legume and these plants play a key role in the nitrogen cycle. These plants house nitrogen fixing bacteria on their roots. The bacteria are housed in tiny round structures of leguminous plant roots. Once the nitrogen is fixed in the soil it can now be used by other plants to make food. These plants include beans peas and peanuts. <span />
A process in which something passes by degrees to a different stage (example: plants, animals, humans, etc)
Nitrogen fixers are bacteria
