Question Detail

ZOO 101 Gas Exchange and Respiration in Mammals Objective Question
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Question

What is the main advantage of having millions of alveoli in the lungs?
Options
A They produce more mucus
B They create a massive surface area for gas exchange
Correct Answer
C They make the lungs heavier
D They warm the air more effectively
Correct Answer

Option B is the correct answer.

Detailed Explanation

Millions of alveoli create a huge surface area, about 75 m², which allows for efficient gas exchange between air and blood.

Hint

A larger surface area allows more diffusion to occur simultaneously.

Question Info

Course: ZOO 101
Topic: Gas Exchange and Respiration in Mammals
Type: Objective
Difficulty: Not specified
Question 774 of 2214
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