In anaphase I, homologouspairs are separated but sister chromatids stay joined together. <span>The "I" in anaphase I refers to the first round of cell division, which resembles ordinary mitosis. So in anaphase I, the homologous pairs separate but the sister chromatids stay together. Then the cell goes directly into a second round of cell division - in anaphase II, the sister chromatids are separated into four (now haploid) cells.</span>
The difference is primary happens naturally and the secondary responds to an disturbance.
<span>Because of semi-conservative replication in DNA synthesis, One of the strands of the new DNA molecule is original and one of the strands of the molecule is composed of new nucleic acids.</span>
Biological diversity, food production, average global surface temperature and carbon dioxide concentrations in the atmosphere
Natural Selection: <span>the process whereby organisms better adapted to their environment tend to survive and produce more offspring. hope this helps</span>
