- 1. What is the simplest animal species?
A) sponges
B) humans
C) cnidarians
D) earthworms
E) slugs
- 2. The dorsal side refers to the...
A) the front side (chest side) of an animal
B) back side (not the chest) of a specimen
C) the top of an animal's head
D) the bottom of an animal's feet
- 3. Which of the following performs a function similar to human teeth in earthworms?
A) intestine
B) crop
C) pharanx
D) gizzard
- 4. Which of the following goes from simplest to most complex?
A) cell-->tissue-->organ system-->organ
B) cell-->organ system-->organ-->tissue
C) tissue-->cell-->organ-->organ system
D) cell-->tissue-->organ-->organ system
- 5. On an earthworm, the clitellum is closer to...
A) the anus
B) the mouth
- 6. Which of the following has a 3 chambered heart?
A) Frog
B) Pig
C) Fish
D) Human
- 7. Which animal is the most complex?
A) Fish
B) Snake
C) Earthworm
D) Toad
- 8. True or False: Earthworms have hearts
A) True
B) False
- 9. Describe why the crop is not rigid (stiff).
- 10. Name the five kingdoms of living things and give a brief description of each (worth 10 points)
- 11. Which of the following is not part of the earthworm's digestive system.
A) gizzard
B) esophagus
C) pharanx
D) intestine
E) crop
- 12. Describe why mammals are more complex than other warm blooded animals like birds.
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