AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Spontaneous Generation was a theory that tried to explain ____
A
how life came to be from non-life
B
how species changed over time
C
how new species came to be
D
how life got here from outer space
Explanation: 

Detailed explanation-1: -Spontaneous generation theory is an archaic scientific theory which stated that living organisms could arise from nonliving matter and that such a process was regular in nature. It also explained the origin of life from the nonliving subjects.

Detailed explanation-2: -The Greek philosopher Aristotle (384–322 BC) was one of the earliest recorded scholars to articulate the theory of spontaneous generation, the notion that life can arise from nonliving matter. Aristotle proposed that life arose from nonliving material if the material contained pneuma (“vital heat”).

Detailed explanation-3: -The first scientist to challenge the theory of spontaneous generation was Francesco Redi with his experiments with containers or rotting meat and maggots.

Detailed explanation-4: -So the correct option is ‘Aristotle’.

Detailed explanation-5: -Pasteur boiled broth and left it in flasks with s-shaped necks. Air could get in, but not microbes because of the shape of the flask. Microbes did not appear in the broth until Pasteur broke off the necks. This experiment made Louis Pasteur the one to finally and completely disprove spontaneous generation.

There is 1 question to complete.