B. Phylogeny. Phylogeny has a similar meaning to evolutionary being a synonym<span />
<span>Flatworms use a system of canals and tubes with the mouth as their excretory organ. They belong to the Phylum Platyheminthes. </span><span>Flatworms
can be cut in half creating two individuals by binary fission. Binary
fission is a type of asexual reproduction in which the offspring has the same
features and characteristics of the parent. During binary fission, the DNA
replicates into two and goes at the end of each membrane. And then the cell
membrane divides into two daughter cells. Then cytokinesis follow.</span>
Answer:
B.
Explanation:
If you lift dumb bells yours working your biceps.
The two complementary strands of DNA are held together by Hydrogen bonding.
