Which Statement About the Mantle of Mollusks Is False

question 209

Multiple Choice

Which statement about the mantle of mollusks is false?

• A) It is present in all groups of mollusks except the octopuses.
• B) In terrestrial gastropods, it is modified into a lung.
• C) It is part of a filtering device used for feeding in bivalves.
• D) It is the mechanism of jet propulsion in cephalopods.
• E) It secretes the shell that provides external protection in most molluscan groups.

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Definitions:

Steric Strain

A form of strain in molecules resulting from repulsive interactions when atoms are forced too close to one another, influencing molecule stability and reactivity.

Torsion Strain

Internal strain in a molecule caused by the electron cloud repulsions when bonds are twisted away from their preferred angles.

Carbon-Carbon Bond

A chemical bond between two carbon atoms, which can vary in nature from single to triple bonds.

Complete Combustion

A combustion reaction where the fuel is entirely consumed, producing only carbon dioxide, water, and energy, assuming ample oxygen supply.