32. Vertebrates
Chordates
32. Vertebrates Chordates
1PRACTICE PROBLEM
Identify the statement(s) about mammals that is/are not true:
P. All mammals have a skull.
Q. All mammals have three ear bones: the incus, malleus, and stapes.
R. Mammals are jawless.
Identify the statement(s) about mammals that is/are not true:
P. All mammals have a skull.
Q. All mammals have three ear bones: the incus, malleus, and stapes.
R. Mammals are jawless.