Describe three examples of specialization in the nervous systems of animal

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

can i get the brainliest pls

explanation:

thats not even an aswer choice

i think the answer is a.keratin is the pigment responsible for skin color.