Question

_____ algae help to form coral reefs.
a. Green
b. Fire
c. Brown
d. Red

Answer 1

RED algae help to form coral reefs.

Red algae contains the pigment phycoerythrin which gives out the red color of the algae; it absorbs blue light and reflects red light.

The Red algae that help to form coral reefs is the coralline algae. The coralline algae secretes a hard shell of carbonate around themselves, which in turn becomes a part of the coral reefs.

Step-by-step explanation:

Answer 2

red algae helps to form them It gives off light that reflects red onto it.

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