Some dinoflagellates live endosymbiotically with coral.When dinoflagellates die, this contributes to coral bleaching.Their death has this result because dinoflagellates
A) protect corals against parasites.
B) create a current with their flagella that brings microorganisms to feeding coral.
C) contribute to coral nutrition through photosynthesis.
D) create phosphorescence that attracts prey microorganisms to corals.
E) release toxins that immobilize microorganisms on which corals feed.

Question

Quizplus · Accepted Answer

Dinoflagellates that live endosymbiotically with coral provide the coral with nutrients through photosynthesis. When they die, the coral loses this source of nutrition, leading to coral bleaching.

Some Dinoflagellates Live Endosymbiotically with Coral