Coral reefs are t5he most biologically diverse marine eco-systems on Earth, rivaled only b the rainforests on land. Corals grow over geologic time and have been an existance for al least 200 million years. Corals reached the current level of diversity about 50 million years ago. The delicately balanced marine enviroment of the coral reefs relies on the interaction of hard and soft corals, sponges. anemones, snails, rays, crabs, lobsters, turtles, dolphins and other sea life.
WHAT IS A CORAL REEF MADE OF
A coral reef is composed of thin plates or layers of calcium carbonate secreted over thousands of years by billions of tiny, soft bodied animals called coral polyps. It takes years for corals to grow an inch and they range in size from a pinhead to a foot in lenght. Each polyp excretes a calcerous exo-skeleton and lives in a symbiotic with a host algae, zooxanthellae, that gives the corals its colour. zooxanthellae takes in carbon dioxide, process is through photosynthesis, and then gives off oxygen as a by-product that is used by the host polyp. Millions of polyps grow on top of the limestone remains of former colonies to create massive reefs. Yet these tiny animals form the only the natural formation visible from outer space.
Names:Phylicia,Jerusha,Brina.
Class:6Faith
D.O.B:o9.o7.96,.o1.96,13.o8.96
Ambition:Save The Marine Lives!,We'll Try Our Very Best! :]
Teacher-In-Charge:Ms Lee Chun Hoe.
Name Of My School:Kuo Chuan Presbyterian Primary
Name Of Team: Coral Wonders. :]
We Love Saving Corals,And VOLLEYBALL. :D.
