Old guys biology

Question 1

Aristotle 

Answer 1

he believed in abiogenesis
-the process by which life forms appear from nonliving
- was that guy that believed maggots came from meat

Question 2

Francesco Redi

Answer 2

-first person to oppose the idea of spontaneous generation 
-did the test with the meat with three tubes and flies

Question 3

John Needham

Answer 3

he boiled chicken broth, put it in a flask, sealed it and waited

Microorganisms appeared - abiogenous occurred (the process by which living forms appear from nonliving matter)

Question 4

spallanzani

Answer 4

• suggested that microorganisms entered the broth after it had been boiled, and before it was sealed in the flask (needham)
• Spallanzani boiled the chicken broth in a sealed flask that had the air removed
• nothing grew

Question 5

paster

Answer 5

• boil meat in s shaped flask
• air could enter, but airborne micronism couldn’t
• no microorganism grew
• tilted the flask, so that broth could get to where the airborne microorganisms were trapped
• life grew quickly