In which of the following vertebrates does the skin funct...
In which of the following vertebrates does the skin function as a respiratory surface?
rat
lizard
fish
frog
Correct answer is D
Amphibians utilize gills for breathing early in life, and develop primitive lungs in their adult life; additionally, they are able to breathe through their skin.
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What type of relation exists between a tapeworm and an infected mammal? ...