Gill rakers act as a rasping organ in:

Correct option is A

Correct Answer: (a) Carnivores
Explanation:
→ In carnivorous fishes, gill rakers are often strong, tooth-like, and function as rasping structures.
→ They help grip, hold, or shred prey before swallowing.
→ Associated with predatory feeding habits.
Information Booster:
→ Herbivores and filter feeders have fine, comb-like rakers.
→ Structure of gill rakers is a key taxonomic and ecological indicator.
→ Carnivores typically have shorter and fewer rakers.
Additional Information (Other Options): Herbivores and omnivores use gill rakers mainly for filtration.