Biology
NULL
Medium
Question
The higher animals have special organs for exchange of gases as their skin is ___________ ?
A
Thin
B
Thick
✓ Official correct answer
C
Soft
D
Hard
Community credibility
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A
Thin
No member explanations yet for this option.
B
Thick
No member explanations yet for this option.
C
Soft
No member explanations yet for this option.
D
Hard
No member explanations yet for this option.
Explanation
Higher (larger, more complex) animals generally require specialized respiratory organs for gas exchange because their skin is too thick to allow sufficient diffusion of gases across it.