When Is the Fetal Respiratory System First Capable of Gas

question 31

Multiple Choice

When is the fetal respiratory system first capable of gas exchange?

• A) Week 20
• B) Week 28
• C) Week 12
• D) Week 32

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Definitions:

Even Integers

Whole numbers that are divisible by 2.

Estimate Time

Approximating the duration that a task or activity is expected to take.

Geometric Sequence

A sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the ratio.

Common Ratio

In a geometric sequence, the constant factor between consecutive terms, used to calculate subsequent terms.