47. Muscle Systems
Musculoskeletal System
Multiple Choice
Multiple ChoiceWhy is having a hydrostatic skeleton rather than an internal skeleton advantageous to an earthworm?
A
Having an internal skeleton would not allow the fine movements an earthworm uses when it moves.
B
Having an internal skeleton would prevent an earthworm from being able to burrow underground tunnels.
C
Having a hydrostatic skeleton means that having muscles is not a requirement for movement.
D
None of the listed responses is correct.
E
Having a hydrostatic skeleton allows the earthworm to use peristaltic motion to move over the substrate.
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