1. What is the major classification between fish A and fish B in Figure 30-1?

1. What is the major classification between fish A and fish B in Figure 30-1?



(1 point)

One uses gills.

One is a parasite.

One has a jaw.

One has a two-chambered heart.

2. A fish can detect movement and vibrations in the water by means of its _____. (1 point)

keen sense of smell

scales

excellent vision

lateral line system

3. Which is the pectoral fin in Figure 30-5?



(1 point)

A

B

C

D

True or false:

4. Amphibians are endotherms because their body temperature changes with the temperature of the surroundings. (1 point)

true

false

5. How do snakes subdue their prey? (1 point)

some by constriction

some by injecting venom

grabbing and swallowing whole

all of these

6. Which structure pictured in Figure 30-2 aids a fish in floating?



(1 point)

A

B

C

D

7. A snake flicks its tongue as a _____. (1 point)

sign of aggression

way of breathing

warning

way to test chemicals in the air

8. A rattlesnake detects your presence by means of its _____. (1 point)

rattle

heat-sensitive organs

sharp eyesight

keen hearing

9. Which beak shown in Figure 31-4 is used to drill into trees to get insects?



(1 point)

A

B

C

D

10. The placenta is an organ that passes food and _____ to and removes wastes from the developing embryo. (1 point)

nitrogen

oxygen

water

sodium

11. According to Figure 32-3, which order of mammals is most closely related to reptiles?



(1 point)

A. primates

B. cetaceans

C. marsupials

D. monotremes

Note: Your teacher will grade your responses to questions 1215 to ensure you receive proper credit for your answers.

12. Why was the evolution of jaws an important event in vertebrate history? (2 points)



13. How do birds resemble reptiles? (2 points)



14. How do a mammal