Which Part of the Muscle Cell Actually Does the Work

question 62

Multiple Choice

Which part of the muscle cell actually does the work of contraction by attaching,pivoting,and pulling?

• A)myosin heads
• B)actin filaments
• C)calcium ions
• D)neurotransmitter molecules

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Definitions:

Piaget's Constructivist Approach

a theory of cognitive development that suggests children construct knowledge through experiences and interactions with the environment, highlighting stages of development.

Skinner's Operant Conditioning

A theory of learning that emphasizes the role of reinforcement and punishment in shaping behavior through a system of rewards and consequences.

Known-answer Question

A known-answer question is a type of question posed by someone not to gain information but to check the respondent's knowledge or to encourage the respondent to reveal information.

Bulletin Board

A surface meant for the posting of public messages, notices, advertisements, or announcements for informational purposes.