I believe that its B but could also be D
Crossing over occurs but on in meiosis 1
its C!!! i have to type random stuff so i can submit the answer but your welcome
Mike is the answer hope this helped
<span>Water is considered an abiotic factor in the ecosystem because it is a non-living part of the ecosystem. Although water is abiotic, it has great impacts on both living and non-living things. Water is very important to al living things and no living organism can survive without it. Other abiotic factors in the ecosystem are soil, rocks, sunlight, oxygen, etc.</span>