Athletes tend to have lower resting heart rates<span> because training programs that build speed, fitness, muscle and endurance also train your heart muscles to pump a </span>higher<span> volume of blood with each heartbeat.</span>
Answer:
the microbe Rickettsia prowazekii.
Explanation:
The answer is 30 to 80 percent its in google
These are the possible genotype, B or O and the phenotype I can not find since I don’t know any of their characteristics
The correct answer is a Bar Graph.