Question

_____ algae are important in the formation of coral reefs. Brown Red Fire Golden-brown

Answer 1

Hello, NicopiahzDani.

Red or coralline algae are the algae that are responsible for building coral reefs.

Answer: Red

Hope this helps :)

Answer 2

Ans.

Coral reefs are underwater ecosystems, made from growth and deposition of living or dead corals. Red algae play an important role in formation of coral reefs. The thread-like structures of red algae trap the sand sediments and particles of sands and cements, which provide mechanical support to the colony of corals and help them to grow.

Thus, the correct answer is option). 'red.'