Multiple choice

Which of these are microscopic plants that grow in the upper regions of the ocean?

  1. Rhizobium

  2. Pollen

  3. Zooplankton

  4. Phytoplankton

  5. Protozoa

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

Phytoplankton are microscopic plants that grow in the upper regions of the ocean, where sunlight is plentiful.