Answer:
<h3>Cardiorespiratory fitness (CRF) refers to the ability of the circulatory and respiratory systems to supply oxygen to skeletal muscles during sustained physical activity. ... Cardiorespiratory fitness helps improve lung and heart condition, and increases feelings of wellbeing.</h3>
Answer:
The health risks include - fatal injuries by speeding and ejected due to the absence of seat belts.
Explanation:
As it is mentioned that car is an antique from the 1950s so there would be no legal obligation for not having and not wearing a seat belt. However, there is a risk present in speeding the car and it becomes riskier as there is no seat belt for the front seat or passenger seat.
Rewrite: It is found that there are 30 percent more likely to get ejected in a fatal crash die from their injuries so one should avoid driving fast especially if there is no sat belt and always seat belt if present.
Answer: Atrioventricular valves
Explanation:
These are the mitral and tricuspid valves, which are suit between the atria and the ventricles and prevent back flow from the ventricles into the atria during systole. The function of the subvalvular apparatus is to keep the valves from prolapsing into the atria when they close.
