Assessed from Conception, Pregnancy Averages _____ Weeks

question 64

Multiple Choice

Assessed from conception, pregnancy averages _____ weeks.

• A) 29
• B) 32
• C) 38
• D) 48
• E) 52

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Definitions:

Countercurrent Exchange

A mechanism where fluids flow in opposite directions in adjacent channels, maximizing transfer rates of heat, gases, or other substances.

Concurrent Exchange

A process where two substances in close proximity exchange properties or substances simultaneously, often used in reference to heat or gas exchange in biological systems.

Crosscurrent Exchange

A mechanism of exchange (often of gases or fluids) in opposite or perpendicular directions, enhancing the efficiency of transfer.

Exhalation

The process of breathing out carbon dioxide and other gases from the lungs to the atmosphere.