When you are going to deconstruct a building.
You have no obligation because its none of your buisness
D is preferable.
Explanation:
The behavior response requires communication between cells and an organ system.
I think the answer is A. it doesn't make sense
<span>factors such as radiation can </span>cause DNA<span> damage, </span>resulting<span> in as many as 1 million ... Many of </span>these<span>lesions </span>cause<span> structural damage to the </span>DNA<span> molecule and</span>normal metabolic activities and environmental
