Grouping contemporaneous species into genera
a. is never a subjective process
b. can be facilitated by identifying which species can interbreed and produce live, though not necessarily fertile, hybrid offspring
c. is always easy and accurate
d. is problematic and therefore not a common practice of physical anthropologists
e. requires similarities between species in one genus and species of another genus.
Question 2
A genus may be defined as a group of
a. individuals who interbreed but who are reproductively isolated from other such groups
b. closely related species
c. one or more species that do not differ from each other in basic ways
d. members of the same species
e. individuals more closely related to individuals of another species in another genus