Spontaneous Generation l
Who was one of the earliest scholars to propose spontaneous generation?
Who is Aristotle?
By what century was it clear that higher organisms could not come from nonliving material?
What is the 18th century?
What does Biogenesis mean?
What is “life from life”?
Who officially proved Biogenesis in 1858?
Who is Rudolf Virchow?
Which scientist proved that microorganisms come from the air?
Who is Louis Pasteur?
What type of matter did Aristotle believe life could arise from?
What is nonliving matter?
Which scientist used meat and maggots to disprove spontaneous generation?
Who is Francesco Redi?
Through what two processes can life arise according to Biogenesis?
What are sexual and asexual reproduction?
In what field of science did Virchow work to prove Biogenesis?
What is cellular pathology?
Who showed maggots came from fly eggs, not meat?
Who is Francesco Redi?
Give one example Aristotle used to support spontaneous generation.
What are maggots appearing on rotting meat?
Which scientist showed microorganisms only appeared when exposed to air?
Who is Lazzaro Spallanzani?
What major biological theory did Biogenesis influence?
What is cell theory?
In what century did Redi perform his experiments?
What are the 1600s?
Which scientist showed that microorganisms only appeared with air exposure?
Who is Lazzaro Spallanzani?
What conditions did Aristotle believe were needed for life to arise?
What are the “right conditions” in the environment?
What type of evidence made spontaneous generation appear correct at first?
What is observational evidence?
What earlier theory did Biogenesis directly challenge?
What is spontaneous generation?
In what century did Spallanzani perform his experiments?
What are the 1700s?
Which scientist first rejected spontaneous generation in 1858?
Who is Rudolf Virchow?
Why did spontaneous generation seem logical at the time?
Because of limited observational evidence.
Which two scientists’ experiments directly challenged spontaneous generation?
Who are Redi and Spallanzani?
Why did Biogenesis need more advanced experiments to prove?
Because spontaneous generation had strong “obvious” support at the time.
In what century did Pasteur disprove spontaneous generation with microorganisms?
What are the 1800s?
Which three scientists all contributed experiments proving Biogenesis?
Who are Redi, Spallanzani, and Pasteur?