One body plan, called bilateral symmetry, represents a major branch point in animal evolution and can be described as __________.Hint: Most animals with bilateral symmetry have a "head end containing a brain. a. being a stationary Indlividual b. an animad.jthat is Idetical all around a central axis c. a body plan with only one way to split it into two equal halves-right down the midline d. resembling a pail