Darwin's Theory

the process in which populations change over time

• basketball
• natural selection
• evolution
• mutation

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I formed the theory of evolution by natural selection after my research of various species of finches on the Galápagos Islands. Who am I?

• Reginald Punnett
• Charles Darwin
• Mr. St. Louis
• Gregor Mendel

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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 lion makes more cubs than the Sahara Desert can support (there's not enough prey around), so only a few of the cubs survive to become adults. They live on to reproduce.
Of the four parts of natural selection, which is this an example of?

• overproduction
• genetic variation
• selection
• adaptation

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Due to a mutation, some jaguars inherit larger jaw sizes than other jaguars within that population and this trait is passed down from parent to offspring. This gives those jaguars an advantage when it comes to hunting down turtles as prey.
Of the four parts of natural selection, which is this an example of?

• overproduction
• genetic variation
• selection
• adaptation

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Tigers with larger paws hunt deer more easily to survive in an environment where resources are limited. As a result, the tigers with larger paws are “selected” (the larger paws become more common in the next generation of tigers).
Of the four parts of natural selection, which is this an example of?

• overproduction
• genetic variation
• selection
• adaptation

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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.
Of the four parts of natural selection, which is this an example of?

• overproduction
• genetic variation
• selection
• adaptation

Populations of species which do not adapt to their environment can eventually become...

• stronger
• humans
• extinct
• angry

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Four present-day realities that some scientists use to support Darwin's theory of evolution?

• fossils
  DNA
  common bone structures
  developmental similarities
• fossils
  DNA
  common bone structures
  saliva
• fossils
  common bone structures
  plants
  developmental similarities
• H₂O
  DNA
  common bone structures
  developmental similarities

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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