a bivalve
The water animal like an oyster whose shell has two parts hinged together is the bi-valve. This includes clams, mussels and scallops.
a bivalve
An animal with a shell composed of two parts hinged together would be a bivalve, such as a mussel, clam, or oyster. Bivalves have two symmetrical shell halves that are connected by a hinge ligament, allowing the shell to open and close for protection and feeding. Oysters are filter feeders that play important roles in aquatic ecosystems.
a bivalve
This description fits creatures like snails or clams with shells that can be coiled or have two hinged pieces. However, the mention of capturing prey with tentacles suggests a sea creature like a jellyfish or anemone.
Pelecypoda is a class of marine and freshwater molluscs that have compress bodies enclosed by a shell into two hinged parts. Members of pelecypoda class include; mussel, clam, oysters and scallops among others. United Nations Farms
The shell that can open and close is typically associated with bivalve mollusks, such as clams and oysters. These shells consist of two hinged parts (valves) that can be opened to allow the organism to feed or breathe and closed for protection against predators and environmental threats. The opening and closing mechanism is facilitated by a group of muscles that control the shell's movement.
A butterfly is made of three parts, the head, thorax, and abdomen. It also has six legs and two wings.
Mussels have a sort of exo-skeleton. Their shell.
Bivalves have two shells that protect their soft bodies. These shells are hinged together to allow the bivalve to open and close.
A "bivalve" is a mollusk that has a hinged shell divided into two halves or "valves," such as clams, oysters, and mussels.
Upper shell is the carapace, and the lower shell is the plastron.