The Major Concentrations of Life in the Oceans Are Found

question 96

Multiple Choice

The major concentrations of life in the oceans are found in

• A) the anoxic zone.
• B) the aphotic zone due to high light levels.
• C) regions of upwelling and in shallow coastal waters.
• D) deep, large oceans due to high nutrient concentrations.
• E) the oligotrophic zone due to clear and clean water.

---

Definitions:

MR = MC

An economic principle stating that optimal production level is reached when marginal revenue equals marginal cost.

Marginal Cost

The cost required to produce a subsequent unit of a product or service.

Marginal Cost Curve

A graphical representation showing how the cost of producing one additional unit of a good changes as production volume changes.

Short-run Supply

The total quantity of goods or services that producers are willing and able to sell at a given price in a short period.