Answer:
Option-D
Explanation:
The myocardial cells form the cardiac muscle present in the heart. The heart receives its signal from the autonomic nervous system but not all the cells receive the signals.
The SV and AV node present in the upper heart produces the potential for the contraction. The action potential gets transferred through the cell and finally reach the lower ventricle through Purkinje fibres.
This allows the contraction of both the ventricles simultaneously and sows that the heart cells contract simultaneously.
Thus, Option-D is the correct answer.
The Recommended Dietary Allowance (RDA) for protein for Marcus with a weight of 200 pounds is 72.72 grams of protein.
The Recommended Dietary Allowance (RDA) is the amount of food that a person should eat regularly to fulfill all the nutritional needs of the body. It is frequently used to help people plan diets that are sufficiently nutrient-dense.
RDA for protein is 0.8 grams of protein per kilogram (Kg) of body weight. Marcus's weight in kg will be:
200/2.2= 90.9 kgs
RDA for protein for Marcus= 90.0 X 0.8= 72.72 grams of protein
Learn more about Recommended Dietary Allowance (RDA) here,
brainly.com/question/12630283
#SPJ4
Answer:
A
Explanation:
Through my experience in healthcare, this has proved to be the most useful option out of the four.
Hope this helps!