Evolution Basics

A species is successful in evolution if it can

• produce successful offspring

• get shelter

• be dominant

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Humans are vertebrates, mammals and

• primates

• cetaceans

• monotremans

• chiropterans

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Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  

• become extinct
  

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What characteristic did Darwin observe about the finches on the Galapagos Islands?

• Their feathers 

• Genotypes 

• Their beaks

• Their body sizes

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Mutations are important because they bring about

• death of the organism in which they develop

• genetic variation needed for a population to evolve

• benefits for the individual, not for the population

• Hardey-Weinberg equilibrium within a population

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What is another name for natural selection?

• survival of the smartest

• survival of the fastest

• survival of the biggest

• survival of the fittest

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Structures on the body that used to serve a purpose, but no longer do.

• Homologous Structures

• Vestigial Structures

• Analogous Structures

• Common Structures

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The process by which organisms that inherit advantageous traits tend to reproduce more successfully than other organisms do

• Natural Selection

• Artificial Selection

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Similar body parts among different species that serve different functions (i.e. the bone structure in the human arm, whale fin, and bat wing)

• Homologous Structures

• Vestigial Structures

• Analogous Structures

• Common Structures

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Tiktaalik, shown in the picture, is fossil evidence showing the transition from what two types of organisms?

• Reptile

• Bird

• Fish

• Four Limbed Animals

• Mammals

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