Chapter 6 Quiz

A  a healthy population living in a subtropical environment.

B  not highly adaptable to changing environments but do well in zoos.

C  among the most endangered animal species due to disease.

D  among the most endangered animals due to human exploitation of resources.

A  a larger brain.

B  smaller eye orbits.

C  a reduced number of teeth.

D  an enlarged olfactory bulb and enlarged scent glands.

A  are mostly frugivorous.

B  are referred to as “cheek pouch” monkeys.

C  are usually terrestrial.

D  have specialized digestive anatomy for eating leaves.

A  is a species of anthropoid because it has an increased reliance on vision.

B  primate must be a species of prosimian, as that suborder of primates relies heavily on the sense of smell for many aspects of daily life.

C  primate exhibits a derived trait for an enhanced sense of smell, since this trait is not commonly observed in mammal species.

D  species is nocturnal.

A  a phenomenon that occurs before natural selection can occur.

B  an anatomical feature used in the manner for which it was originally selected.

C  the use of an anatomical feature in a way unrelated to the feature’s original function.

D  the series of apparent adaptations that are never actually used.