Answer:
No, its normal for a 15 year old boy to play sports
Explanation:
This is considered a heart attack. The blood flood that brings oxygen to the heart is cut off.
Answer:
Mutations
Explanation:
A gene mutation is a permanent change in the DNA sequence of a gene. Mutations can occur in a single base pair or in a large segment of a chromosome and even span multiple genes. Mutations can result from endogenous (occurring during DNA replication) or exogenous (environmental) factors.
This is not a good plan because it does not include healthy eating and exercise.
