GENERAL HISTOLOGY

OESOPHAGUS STOMACH

ECHINODERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Clams, oysters, scallops, and mussels are
A
Mollusks:Gastropods
B
Mollusks:Bivalves
C
Mollusks:Cephalopods
D
Arthropods:Crustaceans
Explanation: 

Detailed explanation-1: -Bivalve mollusks (e.g., clams, oysters, mussels, scallops) have an external covering that is a two-part hinged shell that contains a soft-bodied invertebrate. A roughfile clam from the Flower Garden Bank National Marine Sanctuary-just one of many different bivalve mollusk species.

Detailed explanation-2: -Clams, mussels, oysters, and scallops are bivalve mollusks. This means they have shells that consist of two parts; or valves, which are hinged dorsally and free ventrally. The valves completely enclose the organisms’ body.

Detailed explanation-3: -Oysters, clams, mussels, scallops, cockles, coquinas, and many more are all part of the class Bivalvia. Most soft-bodied, aquatic animals with two shells fall into this group. Bivalves are found in all types of water.

Detailed explanation-4: -The class includes the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders.

Detailed explanation-5: -Clams, oysters, snails, chitons, octopi, and squid are all members of the Phylum Molluska. Many people know the mollusks of this area by the seashells they leave behind. Most of these seashells were made and used by mollusks, but some belonged to crustaceans or other marine invertebrates.

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