Phytoplankton are ecologically important because they

Question

Quizplus · Accepted Answer

Phytoplankton contribute to atmospheric oxygen through photosynthesis, making them essential in the global carbon cycle and maintaining the health of marine ecosystems.

Incorrect options: 
A) Phytoplankton may indirectly indicate the health of polar bear ecosystems but are not directly linked to the amount of ice. 
C) Phytoplankton do not absorb acid to prevent ocean acidification, but may be affected by it. 
D) Phytoplankton are not a primary source of vitamins for polar bears.

Phytoplankton Are Ecologically Important Because They