Why does the phylogenetic tree tell you about the evolutionary relationships of animals?
a. animals are unrelated to one another.
b. animals have many different ancestors.
c. animals belong to serval different kingdoms.
d. animals descended from one ancestor.

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.