Anatomy and Physiology of Clams Quiz

Test your knowledge on molluscan physiology with questions about clam anatomy, circulatory systems, feeding, and more.

#1

Which phylum do clams belong to?

Mollusca
Arthropoda
Cnidaria
Echinodermata
2 answered
#2

What is the main function of the mantle in clams?

Reproduction
Digestion
Protection
Shell formation
2 answered
#3

What is the function of the digestive gland in clams?

Digestion of food
Reproduction
Gas exchange
Excretion
2 answered
#4

What type of symmetry do clam shells typically exhibit?

Radial symmetry
Asymmetry
Bilateral symmetry
Spherical symmetry
2 answered
#5

What is the primary purpose of the foot in clams?

Locomotion
Respiration
Digestion
Protection
2 answered
#6

Which of the following is a characteristic feature of the class Bivalvia?

Presence of radula
Segmented body
Presence of two shells
Lack of shell
2 answered
#7

What type of circulatory system do clams have?

Open circulatory system
Closed circulatory system
No circulatory system
Respiratory circulatory system
2 answered
#8

Which organ do clams use for filter feeding?

Mantle
Foot
Gills
Adductor muscles
2 answered
#9

What is the function of the siphons in clams?

Reproduction
Respiration
Excretion
Feeding
2 answered
#10

Which of the following is NOT a characteristic feature of clams?

Bilateral symmetry
Presence of radula
Shell composed of calcium carbonate
Muscular foot for movement
2 answered
#11

Which of the following best describes the nervous system of clams?

Centralized nervous system
Decentralized nervous system
No nervous system
Autonomous nervous system
2 answered
#12

Which structure in clams is responsible for producing gametes?

Gills
Mantle
Digestive gland
Gonad
2 answered
#13

What is the process called where clams exchange gases with the surrounding water?

Osmoregulation
Respiration
Excretion
Digestion
2 answered
#14

What is the purpose of the adductor muscles in clams?

Reproduction
Feeding
Shell closure
Respiration
2 answered
#15

Which body cavity type do clams have?

Coelom
Pseudocoelom
Acoelomate
Enterocoel
2 answered
#16

What is the purpose of the pericardial cavity in clams?

Digestion
Reproduction
Respiration
Circulation
2 answered
#17

What is the purpose of the byssal threads in some species of clams?

Respiration
Feeding
Reproduction
Attachment
2 answered
#18

What is the function of the crystalline style in the digestive system of clams?

Food storage
Digestive enzyme secretion
Mechanical digestion
Gas exchange
2 answered

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