Question

A cline:

a. was used to describe human variation as early as the Renaissance.
b. describes the pattern of occurrence of trisomy 18.
c. is variation that falls into discrete categories.
d. is continuous variation that follows a continuum.

Answer 1

(D) is continuous variation that follows a continuum.

Step-by-step explanation:

A cline is a gradient of a phenotypic or genetic character within a single species which is continuous along the line of evolution