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How Does It Work? Most birth control pills are "combination pills" containing a mix of the hormones estrogen and progesterone to prevent ovulation (the release of an egg during the monthly cycle). A woman cannot get pregnant if she doesn't ovulate because there is no egg to be fertilized. The answer is D.
Car accidents I think I’m not for sure
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Explanation:
<em>Most of us have heard of physical therapists, athletic trainers, nutritionists, and coaches — and we have a pretty solid grasp on what they do in their day-to-day work. But, for many people, exercise physiology is a different animal. You may have heard of exercise physiology but few truly understand even the basics about this multifaceted healthcare career. </em>
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<em>Put simply, exercise physiologists help people become their best physical selves. The profession can be as varied as helping athletes reach peak fitness; guiding people in their journeys to lose weight, or rehabilitating patients suffering from chronic illness.
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<em>But there's so much more than that. To help shed some light on this complex field of study, we compiled a broad overview of this rewarding career — complete with some basic definitions and distinctions between some of the confusing and similar-sounding fields.</em>
I think it might be flexing. First you tense, which is the flex, then you relax.
Because the heart is forced to pump out blood. In the upper right side of the heart is an bundle of cells called the sinoatrial node. Unlike any other cell in the body, these cells (nicknamed "pacemakers") keep sending out electrical impulses, more than once a second, to make the rest of the heart contract and pump out blood.
hope this helps!
