Which of the following are parts of the Cell Theory?

A. living things are made of cells

B. cells are the building blocks of life

C. cells come from preexisting cells

D. living things are made of more than one cell

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food? viruses can use energy in living cells that they infect. viruses can replicate inside a host that they infect. viruses can cause contagious illnesses in host cells. viruses integrate their rna or dna into infected cells.

The shift of a vehicle's weight around its center of gravity is known as

The instructions for making proteins come originally from