Head-foot portionVisceral mass
Select the two major regions of the mollusc body.
The head-foot portion and visceral mass are two main parts of the body of a mollusk.
The head-foot portion is the anterior region of the mollusk’s body, which contains the mouth and sensory organs such as eyes, tentacles, and/or a radula. The foot is a muscular structure used for locomotion and attachment. The head-foot region is responsible for movement, feeding, and sensing the environment.
The visceral mass is the central region of the mollusk’s body, which contains the internal organs, such as the heart, digestive system, and reproductive system. The visceral mass is usually protected by a shell in shelled mollusks, such as snails, clams, and oysters.
In summary, the head-foot region of a mollusk is responsible for movement, feeding, and sensing the environment, while the visceral mass contains the internal organs that are essential for the mollusk’s survival.
More Answers:
Discovering the Diversity and Importance of the Four Classes of Mollusca in the Animal KingdomExploring the Diversity of Marine Mollusks: Chitons, Octopuses, and Oysters.
Uncovering the Function and Evolution of the Radula: A Key Feeding Adaptation in Mollusks.