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3.3 practice quiz

Quiz by Matt Thomas

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10 questions
Show answers
  • Q1
    Natural selection occurs when which of the following conditions are met?
    Habitat and nutrient resources in an area are plentiful over a long period of time.
    Individual organisms depend on each other to obtain available resources.
    Variations between individual organisms lead to differential survival chances.
    The conditions in an ecosystem support a wide range of living organisms.
    30s
  • Q2
    What is the most likely reason the flightless cormorant of the Galápagos Islands has lost its ability to fly?
    There are no trees on the island where this species lives.
    This species existed for a long period of time in an environment with no natural predators and ample food on the ground.
    All members of this species that could fly left the island.
    Birds that live near the ocean do not need to fly.
    30s
  • Q3
    These graphs provide support for which of the following claims about body length in a population?
    The optimal body length selected for by Generation 100 was approximately 45 cm.
    By Generation 100, no individuals with a body length below 30 cm were able to reproduce.
    These organisms are unable to achieve a body length greater than about 50 cm.
    Environmental pressures over the generations selected for a body length increase of 10 cm.
    30s
  • Q4
    For evolution to function, all the following characteristics of genes are necessary, EXCEPT–
    genetic traits that are inheritable cross generations.
    genes resulting in traits that provide advantages.
    genetic information stored on chromosomes.
    variation in genes in a population.
    30s
  • Q5
    This evidence can best be used to support which of the following conclusions regarding the peppered moth?
    The habitat requirements of dark-bodied moths changed between 1965 and 1985.
    Dark-bodied moths obtained more resources between 1965 and 1985.
    The trait for a white body became more advantageous between 1965 and 1985.
    A new predator of the peppered moth was introduced between 1965 and 1985.
    30s
  • Q6
    The mechanism of natural selection primarily works to change which of the following?
    The rate of mutations resulting from external factors
    The distribution of traits in a population over time.
    The likelihood that traits of organisms are passed on
    The genotypes of individual organisms and their expression
    30s
  • Q7
    The frequency of a certain trait in a population will increase over many generations if which of the following is true?
    There is a sudden change in the environment that reduces the population with the trait.
    Those organisms with the trait have better reproductive success than those without it.
    Those organisms without the trait interbreed freely with those that have the trait.
    The trait is carried by all members of the population, but is expressed only in a few.
    30s
  • Q8
    How does the arctic hare's fur color change with the seasons provide evidence of natural selection?
    Fur color changes to match the change in environmental color, allowing the male hares to attract more females during the mating season.
    Fur color changes to match the change in environmental climate, allowing the hare to find their food more easily.
    Fur color changes to match the change in environmental temperature, allowing the hare to retain and release heat better.
    Fur color changes to match the change in environmental color, allowing the hare to camouflage and evade predators better.
    30s
  • Q9
    Which portion(s) of the mice population will be selected for after a volcanic eruption that covers the area in black soot?
    Portion C
    Both portions A and C
    Portion B
    Portion A
    30s
  • Q10
    Which of the following must occur first for natural selection to take place in a population?
    Gene frequency changes in the population.
    Poorly adapted insects die more than the well-adapted insects.
    There is a change in the environment.
    Well-adapted insects produce more offspring than poorly-adapted insects.
    30s

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