10 Questions
What is the main function of the mantle in molluscs?
Secreting a shell
What type of larvae stage do all molluscs pass through?
Trochophore larvae stage
What is the rasping organ used by many molluscs for feeding?
Radula
Describe the body plan of molluscs in terms of symmetry.
Bilaterally symmetrical
What is the main function of the muscular foot in molluscs?
Movement
Which term describes the body organization of molluscs as having three main parts?
Triploblastic, bilaterally symmetrical, coelomates
What is the term for the fold of tissue in molluscs that drapes over the internal organs and secretes a shell?
Mantle
Which characteristic is common to all molluscs regarding reproduction?
Sexual reproduction
What is the role of the radula in molluscs?
Food scraping
What evolutionary change has occurred in some molluscs like slugs and octopus related to their shell?
Shell has been reduced or lost
Explore the key features and anatomy of molluscs, including their soft bodies, protective shells, and organ system organization. Learn about the different parts of a mollusc body and their functions, such as the muscular foot for movement and visceral mass. Understand how molluscs have evolved diverse shell structures.
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