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AP Biology Ecology and the Biosphere — practice questions — page 2

Explore 84 free Ecology and the Biosphere questions in AP Biology Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Ecology and the Biosphere questions and exercises with answers

Showing questions 31–60 of 84.

Darwin's three principles behind natural selection: traits are inherited, more offspring are produced than survive, and:Read the answer and worked solution →Darwin and Wallace's understanding of limited resources came from reading economist:Read the answer and worked solution →Darwin called the change in populations over generations:Read the answer and worked solution →In 1858 Darwin and Wallace presented papers on natural selection at the:Read the answer and worked solution →Peter and Rosemary Grant have studied Galapagos finches every year since:Read the answer and worked solution →After an El Nino left few large hard seeds on Daphne Major, average finch bill size became:Read the answer and worked solution →The ultimate source of new alleles in a population is:Read the answer and worked solution →A snow leopard's thick fur that helps it survive the cold is an example of an:Read the answer and worked solution →Wings that evolved separately in bats and insects illustrate:Read the answer and worked solution →Bones in human, dog, bird and whale limbs sharing the same layout are:Read the answer and worked solution →Wings on flightless birds and hind leg bones in whales are examples of:Read the answer and worked solution →All vertebrate embryos, including humans, show which structures early in development?Read the answer and worked solution →The supercontinent Pangaea broke up about how many years ago?Read the answer and worked solution →A group of individuals that interbreed and produce fertile, viable offspring is a:Read the answer and worked solution →Speciation involving geographic separation of populations is:Read the answer and worked solution →The northern and Mexican spotted owls are an example of:Read the answer and worked solution →Catch the evidence for evolutionRead the answer and worked solution →Pop the evolution thinkersRead the answer and worked solution →Run the evolution timelineRead the answer and worked solution →Slice the evolution wordsRead the answer and worked solution →Convergent or divergentRead the answer and worked solution →Sort thinkers, evidence and speciationRead the answer and worked solution →Type the numberRead the answer and worked solution →Evolution bingoRead the answer and worked solution →Natural selection can only select; the evolutionary force that creates novel traits is:Read the answer and worked solution →The incorrect genetic theory of Darwin's time that made natural selection hard to explain was:Read the answer and worked solution →The integration of genetics and evolution that took shape by the 1940s is called the:Read the answer and worked solution →Population change over time within a species is called:Read the answer and worked solution →Flu vaccines must be updated every year because flu viruses:Read the answer and worked solution →The rate at which a specific allele appears within a population is its:Read the answer and worked solution →

Worked practice questions

Darwin's three principles behind natural selection: traits are inherited, more offspring are produced than survive, and:

  1. Offspring vary
  2. Species are fixed
  3. Traits are acquired
  4. Habitats never change
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Correct answer: A. Offspring vary

1. Variations among offspring are inherited. 2. Offspring vary in their characteristics. 3. Better competitors leave more offspring. _Source: OpenStax Biology 2e, Chapter 18, Evolution and the Origin of Species (CC BY 4.0)._

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Darwin and Wallace's understanding of limited resources came from reading economist:

  1. John Keynes
  2. Thomas Malthus
  3. Adam Smith
  4. David Ricardo
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Correct answer: B. Thomas Malthus

1. Malthus wrote about human populations. 2. Reproduction outstrips resources. 3. This drives competition each generation. _Source: OpenStax Biology 2e, Chapter 18, Evolution and the Origin of Species (CC BY 4.0)._

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Darwin called the change in populations over generations:

  1. Inheritance of habits
  2. Spontaneous generation
  3. Descent with modification
  4. Survival of the strongest
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Correct answer: C. Descent with modification

1. Inherited traits become better represented. 2. Darwin called it descent with modification. 3. Natural selection is the only known mechanism of adaptive evolution. _Source: OpenStax Biology 2e, Chapter 18, Evolution and the Origin of Species (CC BY 4.0)._

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