Question

according to cell theory, where did this cell come from? a multicellular organism another living cell the nonliving environment energy from sun

Explanation:

Cell theory states that all cells come from pre - existing cells. So this cell must have come from another living cell. Option A is incorrect as a single - celled organism (like the one in the image, probably a paramecium) doesn't come from a multicellular organism in terms of cell origin. Option C is incorrect because cells don't arise from the non - living environment according to cell theory. Option D is incorrect as energy from the sun is related to energy acquisition, not cell origin.

Answer:

B. Another living cell