Question Detail

ZOO 101 Gas Exchange and Respiration in Mammals Objective Question
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Question

How are flatworms able to exchange gases without a specialized respiratory system?
Options
A They have a primitive lung
B They have a high surface area to volume ratio
Correct Answer
C They absorb oxygen through their digestive system
D They do not require oxygen
Correct Answer

Option B is the correct answer.

Detailed Explanation

Flatworms have a flat, thin body with a high surface area to volume ratio, allowing oxygen to diffuse directly across their skin to reach all cells.

Hint

Their shape is the key to their simple gas exchange.

Question Info

Course: ZOO 101
Topic: Gas Exchange and Respiration in Mammals
Type: Objective
Difficulty: Not specified
Question 773 of 2214
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