Multiple choice

Which of the following organisms are normally the least in number in a food chain?

  1. Small crustaceans

  2. Diatoms

  3. Orca whales

  4. Small fish

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

Orca whales are normally the least in number in a food chain. Though killer whales, also called orcas, are considered whales by most people, they are actually members of the dolphin family.