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jekas [21]
3 years ago
12

ANSWER ASAP!! 20 POINTS!!

Biology
2 answers:
Andrews [41]3 years ago
7 0

C. The theory of plate tectonics gives the method by which continents can move as part of plates.

Plate tectonics theory shows that continents moved apart from the mass known as Pangea using tectonic plates.

brilliants [131]3 years ago
4 0

Answer:

The answer is c

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In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

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I. Atrioventricular (AV) node: it's a component of the electrical conduction system of the mammalian heart located in the Koch triangle which connect the ventricles and atria electrically.

II. Atrioventricular (AV) bundle: it's a specialized tissue that transmits electrical impulse from the atrioventricular (AV) node to the Purkinje fibres of the ventricles.

III. Purkinje fibers: it's a network of specialized cells that comprises of glycogen and they transmit cardiac action potentials in a rapid manner from the atrioventricular (AV) bundle to the myocardium of the ventricles.

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