Comparative Anatomy and Earthworms
  • 1. What is the simplest animal species?
A) slugs
B) cnidarians
C) earthworms
D) sponges
E) humans
  • 2. The dorsal side refers to the...
A) the bottom of an animal's feet
B) the front side (chest side) of an animal
C) back side (not the chest) of a specimen
D) the top of an animal's head
  • 3. Which of the following performs a function similar to human teeth in earthworms?
A) crop
B) gizzard
C) pharanx
D) intestine
  • 4. Which of the following goes from simplest to most complex?
A) tissue-->cell-->organ-->organ system
B) cell-->organ system-->organ-->tissue
C) cell-->tissue-->organ-->organ system
D) cell-->tissue-->organ system-->organ
  • 5. On an earthworm, the clitellum is closer to...
A) the mouth
B) the anus
  • 6. Which of the following has a 3 chambered heart?
A) Frog
B) Fish
C) Pig
D) Human
  • 7. Which animal is the most complex?
A) Toad
B) Earthworm
C) Fish
D) Snake
  • 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) esophagus
B) gizzard
C) crop
D) intestine
E) pharanx
  • 12. Describe why mammals are more complex than other warm blooded animals like birds.
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