Early Earth and Evolutionary Thought

What would you expect the first step to be in the emergence of life from nonliving matter?

• Simple organic molecule formation.

• Eukaryotes engulf photosynthetic prokaryotes.

• Strands of DNA coiling around histones to form nucleosomes.

• Prokaryotic cells forming from early Earth's atmosphere.

What modern cells do scientists believe to be close relatives of the Earth's first cells?

• fungi

• protists

• bacteria

• viruses

What do scientist believe the first genetic material was in the first cells?

• ribosomes

• DNA

• RNA

• ATP

What was the importance of the Miller-Urey experiment?

• It demonstrated the life came from Mars.

• It demonstrated that free oxygen can come from volcano's.

• It demonstrated that life evolved from viruses.

• It demonstrated that simple organic molecules could form within a primordial soup.

Evidence of early bacterial life is found within:

• DNA

• stromatolites

• Martian rock

• meteorites

Which theory proposes that the ancestors of eukaryotic cells lived in association with prokaryotic cells?  (This explains how cells could have gained a mitochondria and/or chloroplasts.

• Theory of Evolution

• Theory of Endosymbiosis

• Theory of Spontaneous Generation

• Theory of Biogenesis

Which early scientist proposed that species change because the had a "need" to change.

• Charles Darwin

• James Hutton

• Baptiste de Lamarck

• Carolus Linnaeus

Naturalist who developed the concept of Evolution occurs by natural selection.

• Charles Darwin

• August Weissman

• Charles Lyell

• James Hutton

A great deal of evidence for the Theory of Evolution can be found within:

• volcanoes

• fossils

• human blood

• the atmosphere

Which of the following ideas did BOTH Lamarck and Darwin share in their Evolutionary theories?

• Natural selection

• Inheritance of acquired characteristics

• Species change over time

• Law of use and disuse