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Molluscs Anatomy and Characteristics

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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 Signup and view all the answers

What is the main function of the muscular foot in molluscs?

Movement Signup and view all the answers

Which term describes the body organization of molluscs as having three main parts?

Triploblastic, bilaterally symmetrical, coelomates (B) Signup and view all the answers

What is the term for the fold of tissue in molluscs that drapes over the internal organs and secretes a shell?

Mantle (C) Signup and view all the answers

Which characteristic is common to all molluscs regarding reproduction?

Sexual reproduction (D) Signup and view all the answers

What is the role of the radula in molluscs?

Food scraping (C) Signup and view all the answers

What evolutionary change has occurred in some molluscs like slugs and octopus related to their shell?

Shell has been reduced or lost (A) Signup and view all the answers