what is the best description of the beginning of secondary succession? 1 plants are already present
2 pioneer species appear
3 it begins on rock formations
4 soil is already present

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.