Question

in the past, some people claimed that frogs were produced by mud from ponds. which part of the cell theory directly opposes this claim?
all organisms are composed of cells.
all cells must come from preexisting cells.
the cell is the basic unit of life.
the cell controls all metabolic activity in an organism.

Explanation:

The claim implies spontaneous generation. Cell theory states cells come from pre - existing cells, opposing this.

Answer:

All cells must come from preexisting cells.