Unit 12

Question 1

Quadrupedalism

Answer 1

Movement that involves using forelimbs and hindlimbs to walk, climb, and swing

Question 2

Brachiation

Answer 2

Movement accomplished by swinging arms from one hold to another

Question 3

Bipedalism

Answer 3

The ability to comfortably walk, run, or hop upright on 2 feet

Question 4

Antibody

Answer 4

A blood protein produced to fight a specific antigen

Question 5

Vestigial organ

Answer 5

An organ that is thought to be a degenerated remnant from an evolutionary ancestor

Question 6

Mechanical digestion

Answer 6

The physical breakdown of food particles into smaller sizes

Question 7

Chemical digestion

Answer 7

The breakdown of food particles by enzymes into smaller molecules, eventually becoming the simple macromolecule that can be absorbed by the blood

Question 8

Hominid

Answer 8

A member of the family Hominidae, which includes the great apes and humans

Question 9

Hominin

Answer 9

A member of a sub-group of hominids that includes only those who are bipedal