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Unit 7 Evolution Review Questions

Quiz by Richelle Gibson

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29 questions
Show answers
  • Q1
    What is the scientific term for the formation of new species?
    Adaptation
    Mutation
    Speciation
    Evolution
    30s
  • Q2
    What is genetic drift in the context of evolution?
    Random changes in allele frequencies
    Intentional breeding of organisms
    A gradual change in physical characteristics
    Sudden emergence of new species
    30s
  • Q3
    What term describes the process by which different species evolve similar traits independently in response to similar environmental pressures?
    Parallel evolution
    Divergent evolution
    Coevolution
    Convergent evolution
    30s
  • Q4
    Which of the following best describes natural selection?
    The process by which organisms better adapted to their environment tend to survive and produce more offspring
    The process by which organisms inherit acquired traits from their parents
    The process by which all organisms within a population slowly die off
    The process by which organisms adapt to their environment instantaneously
    30s
  • Q5
    How does natural selection contribute to the evolution of species?
    By causing rapid and drastic changes in species traits
    By selecting the strongest individuals within a population
    By favoring traits that increase survival and reproduction in a specific environment
    By randomly changing genetic material within a population
    30s
  • Q6
    What is the role of genetic variation in natural selection?
    Genetic variation provides the raw material for natural selection to act upon
    Genetic variation has no impact on natural selection
    Genetic variation hinders the process of natural selection
    Genetic variation is solely determined by an organism's external environment
    30s
  • Q7
    What is the significance of adaptation in the process of natural selection?
    Adaptation causes organisms to become weaker and less competitive in their environment
    Adaptation results in rapid and drastic changes in an organism's physical appearance
    Adaptation is not influenced by an organism's surrounding environment
    Adaptation allows organisms to better survive and reproduce in their specific environment
    30s
  • Q8
    Which statement best describes the concept of selective pressure in natural selection?
    Selective pressure has no impact on the evolution of species
    Selective pressures are factors in an environment that influence the survival and reproductive success of individuals with certain traits
    Selective pressure refers to the random changes that occur within a population over time
    Selective pressure ensures that all individuals within a population have an equal chance of survival
    30s
  • Q9
    How does natural selection differ from artificial selection?
    Natural selection is a deliberate process, while artificial selection is a random occurrence
    Natural selection results in drastic changes in species traits, while artificial selection leads to minimal variation
    Natural selection only occurs in natural environments, while artificial selection only occurs in controlled settings
    Natural selection is driven by environmental factors and survival of the fittest, while artificial selection is guided by human intervention and selective breeding
    30s
  • Q10
    How does the concept of 'fitness' relate to natural selection?
    Fitness refers to an organism's ability to survive and reproduce in its environment, influencing its likelihood of passing on its genes
    Fitness has no impact on natural selection processes
    Fitness guarantees an organism's survival regardless of its environment
    Fitness is solely determined by an organism's physical strength and size
    30s
  • Q11
    Which type of reproductive isolation occurs when two species have different mating behaviors?
    Geographic isolation
    Behavioral isolation
    Hybrid sterility
    Temporal isolation
    30s
  • Q12
    Which of the following mechanisms does not contribute to reproductive isolation?
    Behavioral isolation
    Genetic drift
    Natural selection
    Gene flow
    30s
  • Q13
    What type of reproductive isolation occurs when two species mate at different times of the day or year?
    Behavioral isolation
    Geographic isolation
    Mechanical isolation
    Temporal isolation
    30s
  • Q14
    Which type of reproductive isolation is based on physical differences that prevent successful mating?
    Temporal isolation
    Mechanical isolation
    Behavioral isolation
    Gametic isolation
    30s
  • Q15
    What is gametic isolation in terms of reproductive isolation mechanisms?
    It occurs when species are separated by geographical barriers.
    It refers to differences in mating times between species.
    It occurs when sperm from one species is unable to fertilize eggs of another species.
    It involves physical differences that prevent successful mating.
    30s

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