Which is a part of the cell theory? cells come from pre-existing cells cells have a nucleus organisms with one cell must be seen with a microscope organisms must have more than one cell to live

cells come from pre-existing cells

The cell theory was proposed by Matthias Schleinden and Theodor Schwann during 1838–39. It states that all the living beings are composed of cells, they are the basic structural and functional unit of all the living organisms, and all cells have come from the previously existing cells.

On the basis of the above information, cells come from pre-existing cells is a part of the cell theory.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation:

i don't know. if i were you, i would search it up online : d