Question

what is heart? Describe the important of heart in vertebrate animals ?
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Answer 1

the heart is the centre of the the circulatory system whose primary roll is to pump blood through the pulmonary and systemics systems of the body

Explanation:

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Answer 2

Answer:

A heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system.

The heart is the center of the circulatory system whose primary role is to pump blood through the pulmonary and systemic system of the body network. The vertebrate heart is biologically specific to a species and is the product of millions of years of fine turning.

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