18 Questions
Sinupalliate bivalves have a distinct indentation called a pallial sinus in the anterior part of the pallial line.
False
All bivalves are burrowers.
False
Pectens are capable of swimming by rapidly flapping their valves to escape from predators.
True
Bivalves are more abundant in Palaeozoic rocks than in Mesozoic and Cenozoic rocks.
False
The taxodont type of dentition has two or three large teeth with grooves on the sides of each tooth.
False
Isodont bivalves have two large teeth with a resilifer between them.
True
Bivalves have a distinct head with eyes and mouthparts.
False
The ligament in bivalves forces the shell to close.
False
Bivalves have a radula for feeding.
False
Bivalves are also known as Pelecypoda or Lamellibranchia.
True
Bivalves have a dorsal foot for swimming.
False
The valves of bivalves are united by a rigid hinge.
False
Bivalvia is a class of molluscs that have a cap-shaped shell with apex subcentral or curved forwards.
False
Bivalvia is one of the three classes of molluscs with abundant fossil records.
True
All molluscs in the class Bivalvia live on land.
False
Bivalvia is a class of molluscs that consists of segmented animals.
False
The shell or pair of shells in Bivalvia is used for protection and support.
True
Bivalvia is a class of molluscs that is only found in fresh water.
False
Test your knowledge of bivalves, including their distinctive features, habitats, and lifestyles. Learn about the different types of bivalves, their burrowing habits, and how they attach to surfaces.
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