Twenty-five percent of all species in the ocean live in coral reefs, which are created by tiny living organisms known as coral polyps. If conditions do not change, over half of the world's coral will be dead by 2050.

Most polyps live with algae in a symbiotic relationship—one that helps both organisms. These algae rely on sunlight for food. The coral needs access to flowing water for its own food as well as for the gases it and its algae need.

Question

Twenty-five percent of all species in the ocean live in coral reefs, which are created by tiny living organisms known as coral polyps. If conditions do not change, over half of the world's coral will be dead by 2050.

Most polyps live with algae in a symbiotic relationship—one that helps both organisms. These algae rely on sunlight for food. The coral needs access to flowing water for its own food as well as for the gases it and its algae need.

anonymous · Answer

Runoff from farming, construction, and other human activities can carry silt far out into the ocean. What effects does this silt have on coral reefs?

anonymous · Answer

A It forces reefs to move by creating new deltas and shoals.
B It damages reefs by blocking sunlight and burying the reefs.
C It increases the population of marine life sheltering in the reef.

anonymous · Answer

I think its B? not suree tho...

ksaimouli · Answer

B

ksaimouli · Answer

100% sure

anonymous · Answer

ok yay thanks

ksaimouli · Answer

"These algae rely on sunlight for food"

ksaimouli · Answer

no sunlight no food and no coral reefs