What kind of questions do biologists attempt to anwser

I am not sure if my answer will be enough or general enough, but here it is;
They answer things about health, living things, or even host-cell-exclusive organisms like viruses. Also the energy transfer like in the ecology.

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.