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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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Drag each ore to the metal it produces. Answer may be used more than once.
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aluminum: bauxite and corundum  

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Katie is matching the marine flora and fauna to their appropriate zones to which zone does seaweed belong
blsea [12.9K]

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Seaweed most commonly inhabit the littoral zone (nearshore waters) and, within that zone, on rocky shores more than on sand or shingle. Seaweed occupy various ecological niches. At the surface they are only wetted by the tops of sea spray, while some species may attach to a substrate several meters deep.

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iogann1982 [59]

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7 0
2 years ago
What as the consequences of sin and how can one be redeemed according to hawthorne?
AURORKA [14]
Idk according to hawthorne but according to Christianity consequences are hell and redeemed by knowing jesus. idk if hawthorne was a Christian tho maybe google it but hope this helps you :)
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3 years ago
What do the rib muscles and diaphragm have in common?Both aid in the expansion and relaxation of lungs.Both produce red blood ce
IrinaK [193]
The answer is that Both aid in the expansion and relaxation of lungs. Diaphragm and the rib muscles are vital in the breathing process. During inhalation the intercostal muscles contract, expanding the ribcage, the diaphragm contracts, pulling downwards to increase the volume of the chest, pressure inside the chest is lowered and air is sucked into the lungs. During exhalation the intercostal muscles relax, the ribcage drops inward and downwards, the diaphragm relaxes, moving back upwards, decreasing the volume of the chest, the pressure inside the chest increases and air is forced out. 
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