Below Is a Chart of Costs for an Agribusiness Firm

question 13

Multiple Choice

Below is a chart of costs for an agribusiness firm that produces beef (lbs) .
$\begin{array}{llcccccc} \underline{\mathrm{Y}} & \underline{\text { TFC }} & \underline{\text { TVC }}& \underline{\text { TC }} & \underline{\text { ATC }} & \underline{\text { AVC }} & \underline{\text { MC }} \\0 &10&0&10&--&--&--\\1 & 10 & 10 & 20 &\underline {\quad} & 10&\underline {\quad}\\2 & \underline {\quad} & \underline {\quad} & \underline {\quad} & 14& 9 &8 \\3 & 10 & 24 & 34 & 11.3 & 8 & 6 \\4 & \underline {\quad} &\underline {\quad} & \underline {\quad} & \underline {\quad} &\underline {\quad} & 8\end{array}$
-MC for 1 unit of output is equal to::

• A) 10
• B) 12.5
• C) 11
• D) 9

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Definitions:

Excitation-Contraction Coupling

The physiological process that links muscle fiber excitation to muscle contraction, primarily in skeletal and cardiac muscles.

T Tubules

Extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, aiding in the transmission of electrical impulses.

Action Potential

A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane.

Sarcoplasmic Reticulum

A specialized type of smooth endoplasmic reticulum found in muscle cells, responsible for storing and releasing calcium ions during muscle contraction and relaxation.