B. the amount of wind or C. the weight of the air
If you hit your head hard possibly. if just playing and running no.
Answer:
Traits are determined by genes, and also they are determined by the interaction with the environment with genes. And remember that genes are the messages in our DNA that define individual characteristics. So the trait is the manifestation of the product of a gene that is coded for by the DNA.
Explanation:
Answer: base substitutions, deletions and insertions
