In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century. It has three tenets:

Question

1. Living organisms are made up of cells.
2. Cells are the basic structural/organizational unit of all organisms.
3. All cells come from pre-existing cells.

According to the cell theory, why are viruses not considered living?
Responses
A Viruses are not cells.Viruses are not cells.
B Viruses contain protein.Viruses contain protein.
C Viruses contain DNA, but not RNA.Viruses contain DNA, but not RNA.
D Viruses cannot reproduce on their own.

Answer 1

D. Viruses cannot reproduce on their own.