1. External respiration exchanges gases between bloodstream and lungs
2. Internal respiration exchanges gases between bloodstream and body tissue.
3. Air vibrating in vocal cords causes sound
4. Olfaction.
Answer:
Steroids are a chemical compound that boosts your hormones and growth rate. Steroids should not be legal in professional sports because it provides an unfair advantage to those who use steroids compared to those who don't use steroids
Explanation:
That is going to be C) adolescence because when one is an infant they don't know much and they are just learning, as a kid in our childhood. Kids just don't pay attention and want to do whatever. We would already know life skills as an adult so it is adolescence
Answer:
health is most important. Scince is composition on physics,chemistry ,biology astronomy and other subjects. only boilogy represents health. But only biology isnot inlisted so that the health education is an applied science ratger than a pure science.
