2 years ago

Heart cells must contract simultaneously to move blood.

Physics

2 answers:

Katyanochek1 [597]2 years ago

8 0

Answer:

<h3><u>A. Many branches and many communicating junctions.</u></h3>

Explanation:

krek1111 [17]2 years ago

4 0

Answer:

Explanation:

The heart cells must contract simultaneously to move blood.

This means that it needs to act fast and efficiently.

Therefore, the connections among heart cells are characterized by :

having many branches
having many communicating junctions

The correct option should be <u>A</u>

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