The diagram below show single circulation of a fish.

The diagram below show single circulation of a fish.

(a) Write down the names of the parts labelled T,U and V.
(b) Explain the main disadvantage of this type of circulation.
(c) How is this type of circulation different from that found in man?

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(a)
T- Gill
U – Ventricle
V – Atrium

(b) Low pressure system;
- since blood is only pumped once; hence low rate of distribution of oxygen and nutrients to tissues;

(c)
-Blood flows through the heart once for every complete circulation
-Blood flows at low pressure around the body.

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sharon kalunda answered the question on September 13, 2019 at 10:24

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