Which Feature Is Not Necessary in Order for External Respiration

question 21

Multiple Choice

Which feature is not necessary in order for external respiration to be effective?

• A)A thin surface areA.
• B)A moist surface area.
• C)A large surface area in relation to the body size.
• D)A surface area that is external to the body.
• E)A surface area that is vascular.

---

Definitions:

Industry Supply Curve

A graphical representation showing the relationship between the price of a good and the total output of the industry as a whole.

Price of An Input

The cost associated with purchasing goods or services used in the production process.

Breaking Even

The point at which total revenues exactly equal total expenses, resulting in no net profit or loss.

Produce

To create or manufacture goods and services for consumer use, often involving a combination of raw materials, labor, and machinery.