According to science, D would be the correct answer. Hope this helps!
The intrinsic rate of the atrioventricular av bundle is 40 to 60 beats per minute (bpm).
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What is the Atrioventricular (AV) and the intrinsic rate?</h3>
Atrioventricular (AV) can be regarded as the block that usually altered the interruption of impulse transmission between the atria to the ventricles.
And this have the 40 to 60 beats per minute (bpm) as the intrinsic rate.
Read more on intrinsic rate here:
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MRNA is needed in the cells because it directs the synthesis of proteins which is found in the cytoplasm. It is a molecule that carries the message contained within DNA to the ribosome. The Proteins are assembled on the ribosomes using the mRNA nucleotide sequence as a guide.
Answer:
carrying capacity is how much population an environment can hold without its resources being used up/ when a Population Hits Its Limit. an example would be The Carrying Capacity of North American Deer. the Carrying Capacity of Grazing Cattle.
hope this helped!