Early Biologists Referred to Animals as ''Simple" and ''Advanced," but Now

Multiple Choice

Early biologists referred to animals as ''simple" and ''advanced," but now it is more accurate to use the following terms:

A) ''allopatric" and ''sympatric," since the species is most important.
B) "generalists" and ''specialists," since this is how biologists classify characters.
C) ''simple" and ''complex," since anatomy terms are more exact.
D) ''evolved" and ''un-evolved," since everything ties together with evolution.
E) ''primitive" and ''derived," since some early forms became very complex and some evolved forms are derived from them but lost characters and are simple.