Question

ISA1-2014)
Short Ans
(a) How many chambers are present in the heart of
(i) fish
(ii) amphibians
(b) Why is it necessary to separate oxygenated and
deoxygenated blood in mammals and birds ?
(SAI-2016​

Answer 1

Answer:

Hy mate your answer is here

Explanation:

(a)

i 2

ii 3

(b) It is necessary in mammals and birds to separate oxygenated and deoxygenated blood because this makes their circulatory system is more efficient and help in maintaining constant body temperature .

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