In this phylogeny, the presence of the amniotic egg in mammals, birds, and reptiles is an example of .

What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent  

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture