Muscles Work in Pairs,because

question 1

Multiple Choice

Muscles work in pairs,because

• A) contracted muscle cannot stretch itself back out again.
• B) stretched muscle cannot contract by itself.
• C) actin is located in one muscle of the pair,and myosin is in the other.
• D) myofibrils of the paired muscles are connected.

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Definitions:

Break-Even Point

The point at which total revenues equal total costs, indicating no profit or loss.

Break-Even Point

The level of production or sales at which total revenues equal total costs, resulting in no net loss or gain.

Contribution Margin Ratio

A ratio that shows the contribution margin as a percentage of total sales, indicating how much of the revenue is available to cover fixed costs and generate profit.

Fixed Expenses

Expenses that do not fluctuate with changes in production volume or sales, such as rent and salaries.