Answer: Gene...................
Answer:
Heart rate reserve is used when determining exercise heart rates. The Karvonen formula is used to calculate exercise heart rate at a given percentage training intensity.
Correct answer choice is :
<h2>D) Vector contact</h2><h2 /><h3>Explanation:</h3><h2 />
Infectious illnesses are made by microscopic germs that get into the body and create obstacles. Infectious diseases that increase from person to person are said to be poisonous. Some diseases spread to people from an animal or bug, but are not infectious from another human.
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I say D would be the best answer for this question.