Asked by Tanner Miller on Apr 27, 2024
Verified
most have a beaklike, biting mouthparts in addition to a radula.
A) gastropods
B) bivalves
C) cephalopods
D) all mollusk groups
Beaklike Mouthparts
Beaklike mouthparts refer to the specialized feeding appendages found in certain animals, resembling a bird's beak, adapted for seizing and biting food.
Radula
A unique organ found in molluscs, except for bivalves, consisting of a ribbon-like structure lined with tiny teeth used for feeding.
Cephalopods
Cephalopods are a class of mollusks that include creatures such as squids, octopuses, cuttlefish, and nautiluses, known for their bilateral body symmetry, prominent head, and set of arms or tentacles.
- Distinguish the major families of mollusks and their distinguishing traits.
- Discuss the modes of reproduction in different marine species.
Verified Answer
AS
Aaron SuarezMay 03, 2024
Final Answer :
C
Explanation :
Cephalopods, which includes octopuses, squids, and cuttlefish, have a beaklike, biting mouthparts in addition to a radula. Gastropods (A) have a radula but do not possess a beaklike mouthpart. Bivalves (B) have a filter-feeding mechanism and do not have a radula or beaklike mouthparts. While it is true that all mollusk groups (D) possess a radula, only cephalopods have the additional feature of a beaklike mouthpart.
Learning Objectives
- Distinguish the major families of mollusks and their distinguishing traits.
- Discuss the modes of reproduction in different marine species.