Which of the following would be considered a competitor or Corals and a direct threat to coral reefs? Zooxanthellae
Green Algae
Crown of Thorns Sea Star
Coralline Red Algae
Rainbow Parrot Fish

Rainbow Parrot Fish

Explanation:

Rainbow Parrot Fish is an herbivore and it is considered as competitor of corals and a direct threat to coral reef because Rainbow Parrot Fish majorly source of feed is algae which result in missing of lots of algae in corals colony. They consume most of the coral in the coral reefs with their beak like teeth therefore resulting in competition and not enough available algae source for corals. After feeding on algae , they also graze on corals in Coral reefs.

c. it is cartilage that will eventually be replaced by bone

Explanation:

A g rowth plate is an area located near the ends of long bones, is made up cartilage where new bone grows. This happens in children and teens and is replaced by bones when the growth process is finished.

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