The Science of Life

What did people believe about the origin of life until 1668?

• Life arose from living things

• Life arose from nonliving things

• Life was created by microorganisms

• Life was eternal

Who proposed a new theory against spontaneous generation?

• Louis Pasteur

• Charles Darwin

• Francesco Redi

• Gregor Mendel

What did Francesco Redi suggest about flies and rotting meat?

• Flies come from the air

• Flies come from rotting meat

• Flies come from eggs

• Flies come from water

What was the result of Redi's experiment with jars?

• Flies appeared in all jars

• Flies appeared only in the uncovered jar

• Flies appeared in the sealed jar

• Flies appeared in the jar covered with gauze

What theory did Redi's experiment lead to?

• Spontaneous generation

• Abiogenesis

• Biogenesis

• Evolution

Who designed an experiment to confirm biogenesis?

• Isaac Newton

• Louis Pasteur

• Albert Einstein

• Galileo Galilei

What was the purpose of the swan-necked flask in Pasteur's experiment?

• To allow air to enter

• To trap microorganisms before reaching the broth

• To heat the broth

• To cool the broth

Tags

NGSS.MS-ETS1-4

What is a scientific theory?

• A guess without evidence

• A hypothesis tested with data

• A random idea

• A proven fact

How is a scientific law different from a theory?

• It includes an explanation of why

• It describes a pattern in nature

• It is a hypothesis

• It is untested

What does a scientific law generally not include?

• An explanation of why

• A description of how

• A pattern in nature

• A hypothesis