The Alternation of Circular Muscle Contraction and Longitudinal Muscle Contraction

question 12

Multiple Choice

The alternation of circular muscle contraction and longitudinal muscle contraction allows the earthworm to move forward.What type of support system aids locomotion in the earthworm?

• A)an exoskeleton
• B)an endoskeleton
• C)a calcium carbonate shell
• D)a hydrostatic skeleton

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Definitions:

Walking

The act of locomotion on foot, involving a series of rhythmical steps that move the body forward while maintaining stability.

Crawling

A form of movement involving the use of hands and knees, typically seen as an early developmental milestone in infants.

Awareness

The state of being conscious of something, including one’s surroundings, emotions, and thoughts, involving both awareness of the self and the external environment.

Perceived

Regarded in a certain way; seen or understood from an individual's perspective.