Answer:
Oxygen or Minerals or Sugars (Oxygen is the most relevant one)
Explanation:
To survive, every cell must have a constant supply of vital substances such as sugar, minerals, and oxygen, and dispose of waste products, all carried back and forth by the blood cells. Without these substances, cells would die in a very short period of time.
Yes, because it is found and created naturally
The kid is jumped and beat up from some bullies at school, he may be afraid that they will beat him again worse if he tells on them. <span>Fear of retribution.</span>
I never covered this yet but I think it's a..I hope it's right