Multiple choice

The very minute or microscopic organisms freely floating on the surface of water in a pond are known as _____.

  1. herbivores

  2. omnivores

  3. plankton

  4. decomposes

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

Plankton are microscopic organisms that float freely in water bodies and form the base of aquatic food chains. They include both phytoplankton (plant-like) and zooplankton (animal-like).