What are Suckers?

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Study for the Academic Decathlon Science Exam. Prepare with interactive quizzes featuring multiple choice questions, complete with hints and thorough explanations. Elevate your science skills and get ready to excel on the test!

Multiple Choice

What are Suckers?

Explanation:
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).

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