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Evidence and Natural Selection

Quiz by Jennifer Lynn

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9 questions
Show answers
  • Q1
    In the deserts of southwestern United States, rock formations made from lava flows are found scattered across the sand. The rock pocket mouse, which has dark fur lives on the black lava rocks. The Apache pocket mouse, which has light fur, live in the tan sand. Which statement is most correct?
    Natural selection favored different fur colors in habitats.
    The original population of mice spread out geographically to relieve overcrowding.
    The emigration of mice changed the gene pools in the original population.
    Individual mice change their fur color to escape their predators.
    120s
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  • Q2
    In the population of plants, flowers with the brightest color might be selected for in order to attract the most pollinators. Plants of moderate color or dull color are selected against. What type of selection is occurring?
    Disruptive
    Stabilizing
    Directional
    120s
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  • Q3
    A scientist measured the circumference of acorns in a population of oak trees and discovers that the most common circumference is 2 cm. What would you expect the most common circumference(s) to be after 10 generations of disruptive selection?
    2 cm
    Greater than 2cm or less than 2 cm
    Unable to tell from the information provided.
    Greater than 2cm and less than 2cm.
    120s
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  • Q4
    As a result of global warming, what revolutionary, changes could we infer might eventually be seen in polar bears?
    They will develop thicker, warmer coats
    They will lose their ability to swim.
    They will become herbivores.
    They will develop thinner and darker fur
    120s
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  • Q5
    The bones that make up the forelimbs of monkeys, cats, whales and birds are similar. Which of the following statements best supports the evolutionary relationship of these animals?
    The animals at one time lived in different environments but now share an environment.
    The animals use forelimbs for identical activities but live in different environments.
    The animals have different ancestries but have adapted to similar environments.
    The animals share a common ancestry but have adapted to different environments.
    120s
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  • Q6
    Which of the statements about the following diagram is most accurate?
    Question Image
    Dead things are cool.
    the animals' pictures probably came from a common ancestor because they have most similar bone structure.
    These animals are unrelated because their bones are arranged in ways that prove that they are vey dissimilar.
    The human and whale must be more closely related than the human and bat because their hands look so similar.
    120s
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  • Q7
    The wing of an insect and the wing of a bird are considered to be:
    Analogous structures
    homologous structures
    vestigial structures
    120s
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  • Q8
    In 2006, scientists discovered fossilized skeletons of an animal with several interesting features. Fossil evidence indicated that he animal not only bad scales, fins and gills, but also had lungs, a full set of ribs, and limb bones arranged to support the animals weight. The illustration shows that the animal Tiktaalik, probably looked like based on fossil evidence. Why is this discovery important?
    Question Image
    They include skeletons of both males and females.
    They show a transitional from between fish and land dwelling vertebrates.
    They allow scientists to estimate the animal's life span.
    They are complete skeletons of a carnivorous animal.
    120s
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  • Q9
    In the moth simulation you completed, if the pollution is cleaned up, what should happen to the color of moths living in the woods?
    Dark colored moths should become more common.
    Color patterns shouldn't change
    Light colored moths should become more common.
    Dark colored moths should change to light colored moths.
    120s
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