Question

Assertion and reason type question from biology of class 9.​

Answer 1

HEYA MATE!

HERE IS YOUR ANSWER

• Answer :
• Answer : A
• Answer : ASolution :

Answer : ASolution : The heart is a pumping organ for blood circulation which consists of chambers communicating with each other. In fishes the heart is two-chambered, consisting of an auricle and a ventricle. An accessory chambe called sinus venosus is also present which serves as a reservoir and opens anteriorly into auricle through the sino- atrial aperture. Fish heart contains and pump only deoxygenated blood because after getting oxygenated from gills, the blood doesn't return back to the heart. Instead. It is supplied directly to the various parts ot the body.

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