Answer:
B or C i think
Explanation:
because Eons are broken into eras and then into periods. Its not A tho
<span>New combinations of genes may be produced by </span>immigration, mutation and sexual reproduction. These new combinations are also called variations.
Answer:
The correct answer is DNA ligase.
Explanation:
DNA Ligase is an enzyme with links 2 strands of DNA by creating a bond between the phosphate group of 1 strand and deoxyribose group of the other strand of DNA.
In cells, it is used to join the Okazaki fragments together which are formed on the lagging strand during the process of DNA replication.
Okazaki fragments are tiny pieces of DNA nucleotide which are formed in a discontinued manner but latter they are joined by DNA ligase enzyme.
Human beings contribute to the phosphorus and sulfur cycles by using chemical fertilizers for the soil. This includes mostly synthetic fertilizers that can often be full of various molecules that include phosphorus and sulfur in them.
It will rise first in Japan and set in American Samoa