Early Study of Evolution

Who was Charles Darwin?

• A man who liked birds.

• The man who studied natural selection and became the foundation of modern evolutionary studies.

• A doctor.

• A lawyer.

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What is natural selection?

• Animals that have acquired traits to survive and reproduce.

• Animals who pick who they want to mate with.

• People pick the mates for the animals.

• People change the DNA of animals to make them have desired traits.

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What is variation?

• Things that vary.

• Different in traits.

• Animals that are the same.

• Species that change.

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Charles Darwin was the first to discover evolution.

• True

• False

Charles Darwin made his first observation in the Galapagos Island.

• True

• False

What ship did Charles Darwin travel on?

• The Mayflower

• The USS Arizona

• The HMS Beagle

• The USS Maine

What are the Five Principles of Natural Selection?

• Overproduction, Variation, Competition, Adaption, Extinction

• Overproduction, Competition, Extinction, Evolution, Adaption,

• Overproduction, Variation, Competition, Adaption, Evolution

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Lamarck’s ideas about evolution include the concept that differences among the traits of organisms arise as a result of

• continual increases in population size.
• the actions of organisms as they use or fail to use body structures.
• an unchanging local environment.
• the natural variations already present within the population of organisms.

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The economist Thomas Malthus suggested that

• in the human population, people die faster than babies are born.
• without certain checks on population size, there would soon be insufficient food for the growing human population.
• in the 1700s, England needed more housing.
• the majority of a species’ offspring die.

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Darwin realized that the economist Malthus’s theory of population control 

• applied only to humans.
•  could be generalized to any population of organisms.
• could be generalized only when populations lived in crowded conditions.
• explained why the number of deaths exceeded that of births.

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