Many Organisms Are Darker on Their Dorsal Surface and Lighter

question 55

Multiple Choice

Many organisms are darker on their dorsal surface and lighter on their ventral surface.They are difficult to see from both above and below because of this ________,which is called countershading.

• A) adaptation
• B) pattern of resistance
• C) selection pressure
• D) fixation

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Definitions:

Average Total Cost Curve

A graphical representation that shows the cost per unit of output, calculated by dividing the total cost by the quantity produced.

Average Variable Cost Curve

A graphical representation showing the relationship between a firm's total variable cost per unit of output and the level of output.

Average Grade

The mean score achieved by a student, calculated by adding all individual grades and dividing by the number of grades received.

Perfectly Competitive

Describes a market structure where numerous small firms compete against each other, and none can influence the market price.