AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
It was once believed that organisms came from nothing. What was this called and which theory debunked this belief?
A
spontaneous generation, cell theory
B
spontaneous generation, theory of evolution
C
spontaneous generation, bubble theory
D
spontaneous generation, string theory
Explanation: 

Detailed explanation-1: -What is spontaneous generation and who disproved the theory? According to the theory of spontaneous generation, living organisms can arise from non-living matter. Louis Pasteur disproved this theory and was awarded for the same.

Detailed explanation-2: -It was a long-held belief dating back to Aristotle and the ancient Greeks. Experimentation by Francesco Redi in the 17th century presented the first significant evidence refuting spontaneous generation by showing that flies must have access to meat for maggots to develop on the meat.

Detailed explanation-3: -The prize was claimed in 1864 by Louis Pasteur, as he published the results of an experiment he did to disproved spontaneous generation in these microscopic organisms.

Detailed explanation-4: -He did note that maggots were found on the exterior surface of the cloth that covered the jar. Redi successfully demonstrated that the maggots came from fly eggs and thereby helped to disprove spontaneous generation.

Detailed explanation-5: -Pasteur disproved it with the help of swan-necked flask experiment.

There is 1 question to complete.