Which experiment suggests that simplest living organism could not have originated spontaneously from non-living matter ?

Options

A. Larvae could appear in decaying organic matter.
B. Microbes can appear on bread kept at a moist place.
C. Microbes appear on unsterilised organic matter.
D. Meat was not spoiled, when heated and kept sealed in a vessel.

Answer

D

Explanation

Francesco Redi, an ltalian physician, took the flesh and cooked it so that no organisms were left alive. Then he placed fleshin three jars, of which, one was uncovered, the second was covered with parchment and the third one was covered with fine muslin. He kept these jars for a few days and observed that maggots developed only in the uncovered jar though the flies also visited other jars.