Mammals

Review Questions

Eccrine glands produce ________.

  1. sweat
  2. lipids
  3. scents
  4. milk

Hint:

A

Monotremes include:

  1. kangaroos.
  2. koalas.
  3. bandicoots.
  4. platypuses.

Hint:

D

The evolution of which of the following features of mammals is hardest to trace through the fossil record?

  1. Jaw structure
  2. Mammary glands
  3. Middle ear structure
  4. Development of hair

Hint:

B