Corals don't have a protective outer shell, they have an inner skeleton. It is formed from calcium carbonate.
No corals have a protective outer shell like a snail or clam, they actually have an inner skeleton, or endoskeleton. It is almost always composed of CaCO2, in English that's calcium carbonate. Snail and clam shells on the other hand are made of calcite or calcium carbonate mixed with calcium phosphate.
Both have a protective outer layer.
Coral makes up coral reefs. Coral by definition are microscopic animals with an outer skeleton of calcium carbonate that form colonies and are responsible for reef building.
The skin, which is composed of epithelial tissue, forms the outer surface of the body. This tissue acts as a protective barrier against external environmental factors.
the bit on ya nail
The epidermal cell have cuticle (in plants) or chiten (in animals) on their outer tangential walls to perform protective function.
The anthozoan that fits this description is a coral. Corals are colonial animals that secrete a hard exoskeleton made of calcium carbonate. This exoskeleton provides structure and support for the coral colony.
Coral reefs are formed by colonies of coral polyps that secrete calcium carbonate to build a hard exoskeleton around themselves. Over time, these skeletons accumulate and create the structure of the reef.
A coral reef is a plant in the ocean that can produce food for animals.It also can be a home.Even clownfish live in coral reefs.Ever seen the move "Finding Nemo"?Well Nemo and his dad live in a coral reef!
A protective shell is a covering that provides defense or security. In nature, it refers to the hard outer layer that certain animals like turtles and snails have for protection. In technology, a protective shell could be a case or enclosure designed to shield a device from damage.
The pinna
Epidermis