Answer:
Heredity
Explanation:
He got it from his mother so it would be heredity because heredity is passing on of physical or mental characteristic from one generation to another.
Answer:
A: Being tired
Explanation: I really hope im right and that this helps hun
Your heart rate might be higher on a regular basis, and your fitness levels may go up because you are training your body and it is adapting to what you are doing. you can monitor it by measuring how far you run, doing blood pressure, checking your pulse etc
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