Locomotion in ____ takes place with the help of a muscular foot.
Locomotion in ____ takes place with the help of a muscular foot.
Asnails
Bjellyfish
Csea urchins
Dearthworms
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correct answer is: option a (snails)[snails]
Explanation: Snails are gastropods, a class of mollusks characterized by a single, usually spirally coiled shell. Their primary mode of locomotion is through a muscular foot, which secretes mucus to aid in movement. The foot contracts in waves, allowing the snail to glide along surfaces.
- Option a: Snails indeed use a muscular foot for locomotion. This is their primary way of moving.
- Option b: Jellyfish move by jet propulsion, contracting their bell-shaped body to expel water. They do not have a muscular foot.
- Option c: Sea urchins primarily move using tube feet, which are small, water-filled appendages that extend from their body. They do not have a muscular foot.
- Option d: Earthworms move using setae (small bristles) and the contraction of their body muscles. They do not have a muscular foot in the same way as snails.
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