The coral reefs are endangered or exposed by a variety of factors that are hurricane which is a natural phenomenon, diseases and local threats which includes destructive fishing techniques , pollution and global effect of climate change. These pollution is mainly due to sewage and agriculture fishing is destructive because for fishing they usually use cyanide which is very dangerous these are the modern coral reef endangered.
The term used when all individuals in an immediate area
aggregate into a large moving mass of cells is called a slug. This is often
present in aggregation as this is a way of having to increase its chance of
having to provide and find food.
