When a sperm and an egg are combined they create a zygote.
The right answer is agility.
You already have balance when you can stand on one foot, what you need is agility to turn quickly.
Agility is the ability to quickly change the position of one's body. This requires a combination of scales, psychomotor coordination, and reflexes.
Self discipline helps people avoid risk behaviors that can damage their health
Yes, it is possible. There is something called a relapse. It is when you catch a sickness again after getting rid of the sickness and then it is twice as bad as the first time.