The Jewish bar mitzvah is an example of an:
a. age set
b. age grade
c. age group
d. age class
Question 2
A genus may be defined as a group of:
a. closely related species.
b. members of the same species.
c. individuals more closely related to individuals of another species in another genus.
d. one or more species that do not differ from each other in basic ways.
e. individuals who interbreed but who are reproductively isolated from other such groups.
