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Seventh Grade (Grade 7) Evolution Questions

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Grade 7 Evolution
Species change over time through                  .
  1. evolution
  2. Adaptation
  3. extinction
  4. Genetic Variation
Grade 7 Evolution
Grade 7 Evolution
Grade 7 Evolution
Grade 7 Evolution
Over a period of years, the average rainfall in an area decreases, causing environmental changes. Which of the following populations would be most likely to survive these environmental changes?
  1. a population with the greatest amount of genetic variation
  2. a population with the least amount of genetic variation
  3. a population that has been altered through artificial selection
  4. a population with the smallest population size
Grade 7 Evolution
Body parts that have lost their original function through evolution are called                      .
  1. Comparative Anatomy
  2. Homologous Structures
  3. Vestigial Structures
  4. Analogous Structures
Grade 7 Evolution
Which of the following is a situation that could lead to extinction of a species?
  1. increased competition
  2. increased food supply
  3. increased habitat
  4. increased population size
Grade 7 Evolution
Which of these statements is true about DNA and evolution?
  1. Two species that have the same DNA provide evidence that evolution has taken place.
  2. Two species with very similar DNA likely evolved from a common ancestor.
  3. Each living species has DNA made from different ingredients, showing that organisms have evolved.
  4. DNA from related species is identical, providing evidence that all organisms have evolved in the same way.
Grade 7 Evolution
Body parts that perform a similar function but differ in structure are called
  1. Comparative Anatomy
  2. Homologous Structures
  3. Vestigial Structures
  4. Analogous Structures
Grade 7 Evolution
Whales and bats both have                .
  1. Night vision
  2. Mammary glands
  3. Hair
  4. Feathers
  5. Gills
Grade 7 Evolution
Grade 7 Evolution
Grade 7 Evolution
Individuals within a population have slightly different traits, called variations. How do variations improve the likelihood that a population will survive?
  1. Variation enables individuals to produce offspring that will survive into adulthood.
  2. Variation enables the population to create new genes, which help individuals survive a significant change in their environment.
  3. Variation provides the raw material upon which natural selection acts in a population.
  4. Variation enables individuals who are very different from the rest of the population to reproduce more successfully.
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