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Advocard [28]
3 years ago
9

A small mass of tissue that is made up of Purkinje fibers, ganglion cells, and nerve fibers, that is embedded in the musculature

of the right atrium, and that originates the impulses stimulating the heartbeat called as?
Biology
1 answer:
Nadusha1986 [10]3 years ago
5 0

Answer:

It is called the S-A node, or rather sinus node.

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Ignoring migration, the age structure of a human population likely to increase in size will have what shape? a) pyramidb) invert
goldfiish [28.3K]

Ignoring migration, the age structure of a human population likely to increase in size will have pyramid shape.

Answer: Option A

<u>Explanation:</u>

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Government pioneers are intrigued to know future patterns in their countries' populations and their age structures to help envision up and coming needs and utilization of assets.

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