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BIOLOGY

JAMB 2007 - Question 32

Biology 2007 JAMB Past Questions - Question 32: Which of the following uses diffusion as the principal method of gaseous exchange?

Choose the most appropriate option for the gap .

Which of the following uses diffusion as the principal method of gaseous exchange?

A: Lizard.

B: Grasshopper

C: Rat.

D: Earthworm

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Correct Answer

Explanation

D - earthworm has a moist skin which it uses for respiration oxygen dissolves in the moisture and diffuses while carbon IV oxide diffuses out through the same way. rat and lizard uses lungs while grasshopper has trachea as a respiratory organ