Ineed some biology because i'm not smart and very confused

You don't have to answer child. You just have to pick which ever sounds best to this diagram.

In my own word cell technology can  lead to advances in the understanding of diseases mechanism and transmission because diseases is very bad

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.