Answer:
A good warm-up before a workout dilates your blood vessels, ensuring that your muscles are well supplied with oxygen. It also raises your muscles' temperature for optimal flexibility and efficiency. By slowly raising your heart rate, the warm-up also helps minimize stress on your heart.
Answer: premature death causes the life expectancy to be younger.
Cells are the basic unit of all oranisms, they contain almost everything we need to survive. They form our organs and blood, etc. That are the building blocks for all life, whether the organism is single-cellular or multi-cellular.
