Theories of Evolution

Which gas was not present in early Earth atmosphere?

• Oxygen (O2)
• Methane (CH4)
• Carbon Dioxide (CO2)
• Water Vapor (H2O)

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Nature has a way of causing organisms that inherit advantageous traits to survive and reproduce more successfully than the ones that don't. This process is known as...

• natural selection
• genetic variation
• adaptation
• overproduction

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A beetle's ability to camouflage (blend in) with a nearby leaf allows it to escape a hungry frog's appetite.
This is an example of an:

• overproduction
• genetic variation
• selection
• adaptation

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In both the past and the present, humans have selected plants or animals for breeding based on desirable traits. This process is known as...

• artificial selection
• natural selection
• farming
• cropping

the process in which populations change over time

• artificial selection
• natural selection
• evolution
• mutation

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Evolution is the fundamental concept underlying all of biology and is supported by multiple forms of scientific evidence. Which of the following types of evidence supports evolution?

• fossil records
• molecular biology
• comparative embryology
• all of these

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The human appendix is a __________ structure that suggests that humans evolved from plant-eating ancestors.

• homologous
• embryonic
• essential
• vestigial

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Through his observations made in the Galapagos Islands, __________ formulated a theory of how species change over time, called natural selection.

• Pierre Curie
• Charles Darwin
• Richard Dawkins
• Jean-Baptiste Lamarck

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The first organisms evolved on Earth around 4 billion years ago.  The fossil record indicates that the first organisms were which of the following?

• prokaryotes
• mitochondria
• plastids
• eukaryotes

What did Charles Darwin observe in finch populations of the Galapagos Islands off the coast of South America?

• different species on different islands
• all species on one of the islands
• Identical species on all the islands
• the same species as found in South America mainland

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