Select all correct answers. A phylogenetic tree may represent relationships among

A. populations

B. taxa at levels above species

C. species

D. genes

Option B.

Taxa at levels above species.

Explanation:

Phylogenetic tree or evolutionary tree is a diagram that shows evolutionary relationship among organisms of common ancestors base on their physical difference and similarities and genetic components.

Phylogenetic tree shows relationship among group of organisms species called taxa.

The top of the tree shows the group of descendant taxa while the nodes on the tree show the common ancestors of the descendants.

the answer is c. it will give up it's valence electron to the other atom.