Question

why pisces have single circulation?

Answer 1

Answer:

Limitations of Single Circulatory Systems. Blood flow rate and blood pressure falls when blood leaves a fish's gills. The low blood pressure in the single circulatory systems present in fish is fine for fish but would be insufficient for efficient kidney function in mammals. (Mammals have double circulation systems.)

Answer 2

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$\Large\fbox{\color{purple}{QUESTION}}$

DOUBLE AND SINGLE CIRCULATION

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Single circulation is the type of circulatory system that occurs in fishes in which the blood passes only one through the heart, in each complete circuit of the body compare double circulation “ single circulation a dictionary of biology

In single circulation there is no pulmonary circulation and there is only system circulation . These organism have two chambered heart and the blood is circulated one time from heart to the body

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