When we breathe, oxygen gets into our bodies. Every day about 2,000 gallons of circulating blood travel through an estimated 60,000 miles of blood vessels<span> which link all the cells and organs of our body.
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The respiratory system is made up of organs and tissues that help you breathe. The main parts of this system are the airways, the lungs and linked blood vessels, and the muscles that enable breathing.
Answer:
The pelvic bone supports your "trunk". Which is important because the area that it supports holds vital organs needed to live.
Explanation:
ADHD and ADD. Attention Deficit Hyperactivity Disorder and Attention Deficit Disorder respectively.
Answer:
Testosterone.
Explanation:
Testosterone is the primary sex hormone and anabolic steroid in males. In male humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
