The shell of a clam consists of two valves hinged together along the dorsal side (front). On the opposite end of where the clam opens is a swollen region (the umbo) where the shell of the clam starts to grow.
A peak where shell formation began, called a beak or umbo, so i guess that's just the beak of the clam where the shell first started to grow, <.< tho if this is for a teacher maby the first answer is better.
becaus
The umbo which is located at the anterior end of the clam
the umbo
The oldest part of the clam shell is called the umbo. It is the portion closest to the hinge and is found by following the growth rings to their center.
to allow the clam to filter feed
2
The reproductive gland in a clam are present at the interior system. This gland is used for reproduction by the clam.
Some stoves are referred to as clam shells because they resemble the form and function of the shells of a clam. They are compact with hinge joining two halves.
The mantle of a clam protects the clam from sunlight in shelled mollusks, the mantle is the organ that forms the shell, and adds to the shell to increase its size and strength as the animal grows.
They digest and store food
The cast of Umbo et Samuel - 1995 includes: Boubacar Samb Pierre Schlaepfer
The mantle is a secrete shell. The functions of the mantle is to protect the crab.