Question

the animal whose blood is not the carrier of oxygen to the tissues is

Answer 1

aloha!

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amphibians ex:- frog do not require blood as a carrier of oxygen.

they may use their skin and simple exchange of gas oxygen and carbon dioxide can take place. { it is known as cutaneous gas exchange } the oxygen can be absorbed directly by the organs as the skin is not much thick. similarly, nitrogenous wastes and carbon dioxide can be released out.

they may also use lungs. { if on land }

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hope it helps :)