1. What term describes an animal whose body temperature is mostly unchanging?

a. hemostat.

b. mammal.

c. autophile.

d. archadian.

e. warm blooded.

2. What's the largest artery in the human body?

a. carotid.

b. latera maximus.

c. aorta.

d. veneous maximus.

e. varicosa.

f. alateral primus.

g. other.

3. What is the highest mountain in the United States?

a. Mount McKinley.

b. Mount Everest.

c. Mount Olympus.

d. Rocky Mountain.

e. Mount St. Helens.

f. Mount Washington.

4. What ridge separates North America's east flowing and west flowing rivers?

a. The Great Central Ridge.

b. The Appalacian Mountains.

c. The Great Central Crest.

d. The Continental Divide.

e. The Western Plateau.

f. other.

5. How many bones are there in the human body?

a. about one hundred.

b. two hundred six.

c. about three hundred.

d. about four hundred.

e. sixty eight.

6. What weed's name is derived from the French words for tooth of the lion?

a. purslane.

b. catnip.

c. felidenta.

d. dandelion.

e. dentafelina.

7. Gases...

a. exert a pressure.

b. expand as temperature increases.

c. mix with other gases in an ratio.

d. all of the above.

8. Surface tension of water causes...

a. water to be transparent.

b. the beading of water droplets on a car's hood.

c. the body to be cooled when perspiration evaporates.

d. waves.

e. bending of light entering or leaving the water.

9. Most substances that have molecules with about the same weight as water molecules are gases at room temperature. Water is a liquid at room temperature because of...

a. synchronized motion of adjacent molecules.

b. the effects of gravity.

c. extensive bonding of hydogen atoms to other water molecules.

d. the lack of motion of water molecules.

e. some other reason.

10. Which of these is the acid in vinegar?

a. sulfuric acid.

b. citric acid.

c. acetic acid.

d. ascorbic acid.

e. fruitic acid.