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gulaghasi [49]
3 years ago
15

The worm alternates between extension and pulling the rest of its body after the extension. It extends the front of its body by

contracting its circular muscles making itself __________. It pulls the rest of its body by contracting its longitudinal muscles, making itself __________.
Biology
1 answer:
Anestetic [448]3 years ago
7 0
Answer:
Longer. Shorter
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