Refer to the Following $\begin{array}{rr}\text { Output } & \text { Total Cost } \\\hline 0 & \$ 300 \\50 & 800 \\100 & 1050 \\150 & 1650 \\200 & 2400\end{array}$

question 39

Multiple Choice

Refer to the following:

$\begin{array}{rr}\text { Output } & \text { Total Cost } \\\hline 0 & \$ 300 \\50 & 800 \\100 & 1050 \\150 & 1650 \\200 & 2400\end{array}$
-The additional cost of producing the 60th unit of output is:

• A) $5
• B) $250
• C) $8
• D) $120
• E) $80

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Definitions:

Immune System

The complex network of cells, tissues, and organs that works together to defend the body against pathogens.

Red Blood Cell

Erythrocyte; contains hemoglobin and carries oxygen from the lungs or gills to the tissues in vertebrates.

Fluid-Mosaic

A model describing the structure of cell membranes, where various proteins float in or on the fluid lipid bilayer like boats on a pond.

Plasma Membrane

The lipid bilayer that forms the outer boundary of a cell, controlling the movement of substances in and out of the cell.