Biology is the study of living things or organism. It is a science of life. And it is a great affect of human development because and humans possesses both genetic and environmental surroundings. Genes are the first inheritance in all creatures that effects the appearance or purpose of an organism in definite manner.
The nurse would smile in improvement but would still be a bit annoyed because smoking at all will affect her
D: heart rate
PCRABS is a good acronym to remember the skill related fitness components
Power. Co ordination. Reaction time. Agility. Balence. Speed
The answer is number 5: defends the body against pathogens. Red blood cells do not defend the body, white blood cells do. Red blood cells' purpose is to carry oxygen to the rest of our body.