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Sci. 8 4-1 CIA REVIEW. What is an adaptation?. A change in DNA An over production of offspring A competition between two members of the same species A modification in a species for survival I need help. Which of the following is true about the rate of evolution for most species?.

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what is an adaptation
What is an adaptation?
  • A change in DNA
  • An over production of offspring
  • A competition between two members of the same species
  • A modification in a species for survival
  • I need help.
which of the following is true about the rate of evolution for most species
Which of the following is true about the rate of evolution for most species?
  • Evolution can occur over a weekend
  • Evolution occurs in several months
  • Evolution occurs over one year
  • Evolution occurs over millions of years
  • I need help!
slide4
If trees grew taller over time, what physical characteristics of giraffes would allow them to survive?
  • Thick neck
  • Thin neck
  • Long neck
  • Short neck
  • I need help!
which of the following is a result of adaptations over a long period of time
Which of the following is a result of adaptations over a long period of time?
  • Diversity within a species.
  • Competition within a species.
  • Extinction of a species.
  • I need help!
slide6
Darwin’s studies of finches on the Galapagos Islands suggest that the finches’ differences in beak structure were most directly due to….
  • Acquired characteristics in the parent finches
  • Mating behaviors of different finch species
  • Adaptations of the finches to different environments
  • I need help!
which of the following is a piece of evidence for evolution
Which of the following is a piece of evidence for evolution?

a) Different body structures

b) Similarities in early development

c) Number of members of species

d) Competition

e) I need help!

when some members of a species become isolated
When some members of a species become isolated
  • They become extinct
  • They cannot reproduce
  • They are more likely to form a new species
  • Their population increases
diversity between individuals of a population or species is caused by
Diversity between individuals of a population or species is caused by:
  • Overproduction
  • Random mutations
  • Extinction
  • Gradualism
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