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Movement in snails
Snail is a small molluscan Snail is protected by its external skeleton called as shell. Snails are found in wet places. Entire body except the foot lies inside the shell. When disturbed, snail even retracts the foot in to the shell. Snail moves with the help of single muscular foot. The under surface of the muscular foot is lubricated with mucus. The muscular foot glides over the surface. The rhythmic contractions and relaxations of this muscular foot brings about pulling action in the body. The secreted mucus also reduces the risk of injury from sharp objects.
Movement in snakes
Snakes are vertebrates with vertebral column. Body is supported by a skeleton made up of vertebrae which run continuously from head to tail. As they do not have any limbs, snakes do not have appendicular skeleton. Snakes move in a loop-like, zig-zag manner. They cannot move in a straight line. They have difficulty in moving on very smooth surfaces. Snakes have a long back bone and many interconnected muscles that help them to slither. They have muscles connecting the backbone, ribs and skin. Snakes move in grass, sand and water. Though the snakes do not have arms or legs, they can climb trees.
Snail is a small molluscan Snail is protected by its external skeleton called as shell. Snails are found in wet places. Entire body except the foot lies inside the shell. When disturbed, snail even retracts the foot in to the shell. Snail moves with the help of single muscular foot. The under surface of the muscular foot is lubricated with mucus. The muscular foot glides over the surface. The rhythmic contractions and relaxations of this muscular foot brings about pulling action in the body. The secreted mucus also reduces the risk of injury from sharp objects.
Movement in snakes
Snakes are vertebrates with vertebral column. Body is supported by a skeleton made up of vertebrae which run continuously from head to tail. As they do not have any limbs, snakes do not have appendicular skeleton. Snakes move in a loop-like, zig-zag manner. They cannot move in a straight line. They have difficulty in moving on very smooth surfaces. Snakes have a long back bone and many interconnected muscles that help them to slither. They have muscles connecting the backbone, ribs and skin. Snakes move in grass, sand and water. Though the snakes do not have arms or legs, they can climb trees.
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