<span>D because hearsay is info received from other people that one cannot adequately substantiate... or in other words, a rumor.</span>
Microscope changed the course of scientific research by enabling scientist to see things and organism that can not be seen by our bare eyes
Men have a greater risk of heart attack then women do, and men have attacks earlier in life.
Answer: Circuit training builds your aerobic, or cardiovascular, endurance, too! “Your cardiorespiratory system has to work harder to keep up with the relentless demand for energy from your working muscles as you perform back-to-back exercises,” he says.
Explanation:
