The "Motor Unit" in Vertebrate Skeletal Muscle Refers to

question 70

Multiple Choice

The "motor unit" in vertebrate skeletal muscle refers to

• A) one actin binding site and its myosin partner.
• B) one sarcomere and all of its actin and myosin filaments.
• C) one myofibril and all of its sarcomeres.
• D) one motor neuron and all of the muscle fibers on which it has synapses.
• E) an entire muscle.

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Definitions:

Marginal Revenue

The additional revenue that a company earns from selling one more unit of a good or service.

Demand Curve

A graph showing the relationship between the price of a good and the quantity of the good that consumers are willing and able to purchase.

Equilibrium Price

The price point in the market where the amount of goods being offered is equal to the amount being sought by consumers.

Monopoly Supply Curve

A theoretical concept indicating that a monopoly does not have a traditional supply curve because its output decision depends on the demand it faces and its cost structure.