Answer:
Without crossing over, each chromosome would be either maternal or paternal, greatly reducing the number of possible genetic combinations, which would greatly reduce the amount of genetic variation between related individuals and within a species
Explanation:
Why is it important?
- Because when bacteria converts ammonia into nitrate and nitrite, producers need them to make proteins and then consumers eat the producers and reuse the nitrogen to make their own proteins.
The Answer would be A or D but I am going with A if you come up if the right answer good for you
Answer:
abiotic factors refer to non-living physical and chemical elements in the ecosystem like water, air and sunlight.
biotic factors are living ot once-living organisms in the ecosystem like humans and animals
basically biotic is alive and abiotic is not alive
A. the animal which donated a nucleus
