What are Suckers?

What are Suckers?

• A. Worm cast
• B. Bristles
• C. Cilia
• D. Suckers

Answer: (D)

Suckers are suction-cup attachment structures that create a seal and negative pressure to grip onto surfaces or prey. They’re muscular and can extend, press against a surface, and then contract to hold tight—allowing organisms like octopuses to grab objects or cling to rocks, and leeches to attach firmly while feeding. This is different from worm casts (the worm’s waste pellets), bristles or setae (hair-like structures used for locomotion), or cilia (tiny hair-like structures used to move fluids or the organism itself).

Suckers are suction-cup attachment structures that create a seal and negative pressure to grip onto surfaces or prey. They’re muscular and can extend, press against a surface, and then contract to hold tight—allowing organisms like octopuses to grab objects or cling to rocks, and leeches to attach firmly while feeding. This is different from worm casts (the worm’s waste pellets), bristles or setae (hair-like structures used for locomotion), or cilia (tiny hair-like structures used to move fluids or the organism itself).