Answer:

Our body is made up of bones and muscles. The basic structure of our body is known as cell. When many cells combine together then it is known as tissue. When may tissue are combine together it is known as organ. Organs combine to form Organ system. And organ systems form a body
Addiction can be with many things, but generally addiction could cause young people to not be focused on things such as maybe their school work, friends and family. they can lose sight of what’s important in life because they are focused on their addiction
A lot of bacteria, virus and toxins can become a health risk if there is a biological warfare attack. Alphavirus is a small,rounded,enclosed positive virus causing human and animal sickness. Examples include Sindbis virus and Chikungunya virus such then can be the pattern of infections that can cause chronic infections of the vital organs such as the lungs.