After having one concussion you are more likely to have another — some doctorsestimate you increase your risk up to three times. There are two reasons why your risk increases: carelessness and brain chemistry.
I think that the answer this question would have to be c
Biological macromolecules are important cellular components, they have a wide array of functions necessary for survival and growth of living organisms. There are four major classes of biological macromolecules
-carbohydrates
-lipids
-proteins
-nucleic acids.
