When the circular muscles contract, the earthworm stretches, becoming longer and thinner. The earthworm uses its setae to anchor the front of its body in the soil. Now the longitudinal muscles contract and the earthworm becomes shorter and wider or it bends from one side to the other, pulling the body forward.
Answer:
oxygen because
Explanation:
because u can survive 3 days with out it and if u did not have oxygen u would suffocate
Answer:
Explanation:
1. the child should rest in bed
No, I think because everyone has a cell that looks the same only if the person isn't sick therefore they would have a lack of some vitamin.
