C Time of year I just took the quiz.
Nitrogen Containing Base. It can be either Adenine, Guanine, Thymine, Cytosine, Uracil
So abiotic means nonliving, so the only abiotic option is B. the gravel on the bottom of the aquarium.
A diploid cell<span> has two of each chromosome, one from each parent. In meiosis you start with a </span>diploid cell<span> that divides twice to </span>produce<span> four </span>haploid cells<span>. So True.</span>
