Question

what is meant by the term single criculation ​

Answer 1

Answer:

In bony fishes and sharks , blood passes through the heart once in each complete circuit through the body , an arrangement called single circulation. In fishes, the system has only one circuit , with the blood being pumped through the capillaries of the gills and on to the capillaries of the body tissue. This is known as single circulation. The heart of the fish is, therefore, only one pump(consisting of two chambers).

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