New world monkeys evolved separately from other anthropoid primates because they

a. lived in areas without trees
b. were nocturnal
c. were geographically separated from other primates
d. had c-shaped rather than s-shaped spines

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables