When the longitudinal muscles within an earthworm segment contract, what effect does this have on the shape of the segment?
A. The segment will shorten and widen.
B. The segment will elongate and widen.
C. The segment will shorten and become
narrower in diameter.
D. The segment will elongate and become
narrower in diameter.
E. The segment will change length, but not
diameter.
A
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