Multiple choice

All of the following are components of marine ecosystem, except

a. Oceans b. Estuaries c. Coral reefs d. Bogs e. Marshes

  1. a and b

  2. b and c

  3. c, d and e

  4. d and e

  5. a and d

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer. Bogs and marshes are a part of freshwater ecosystems. Marine ecosystem includes oceans, estuaries and coral reefs.