Multiple choice

Match the following columns:

 
Organism Number of hearts
1. Earthworm a. 1
2. Ostrich b. 5
3. Gorilla c. 3
4. Hag fish d. 4

  1. 1. Earthworm d. 4
    2. Octopus a. 1
    3. Gorilla c. 3
    4. Hag fish b.5
  2. 1. Earthworm b.5
    2. Octopus c. 3
    3. Gorilla a. 1
    4. Hag fish d. 4
  3. 1. Earthworm d. 4
    2. Octopus c. 3
    3. Gorilla b. 5
    4. Hag fish a. 1
  4. 1. Earthworm c. 3
    2. Octopus a. 1
    3. Gorilla d. 4
    4. Hag fish b. 5
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct match. Earthworm has 5 hearts known as aortic arches. Octopus has 3 hearts; gorilla has 1 heart; and hag fish has 4 hearts.

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