Chapter 7 Change Over Time

20 Questions | Total Attempts: 880

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Chapter 7 Change Over Time

Questions and Answers
  • 1. 
    One day while hiking, Maria found a rock in the wall of a canyon. In the sedimentary rock, she noticed an impression of a leaf. Which answer best describes what Maria has found?
    • A. 

      DNA

    • B. 

      Fossil

    • C. 

      Genetic evidence

    • D. 

      Developmental pattern

  • 2. 
    What is artificial selection?  
    • A. 

      The process by which humans breed organisms for certain characteristics

    • B. 

      The process by which inherited traits in a population change over generations

    • C. 

      The process by which individuals that are better adapted to their environment are more likely to survive and reproduce

    • D. 

      The process by which Charles Darwin noted the differences among finches on the Galápagos Islands

  • 3. 
    Which of the following statements describe the evidence provided by fossils?
    • A. 

      The history of life in the geologic past

    • B. 

      Human's role in artifical selection

    • C. 

      Developmental patterns of living organisms

    • D. 

      The genetic similarities between living and extinct organisms

  • 4. 
    Adpatation is one of the parts of natural selection. What is an adaptation?
    • A. 

      A group of organisms that can mate to produce fertile offspring

    • B. 

      A process by which inherited traits in a population change over generations

    • C. 

      A process by which individuals that are better adapted are more likely to camoflage themselves to their environment

    • D. 

      An inherited trait that improves chances of survival and reproduction for a group of individuals in a population

  • 5. 
    What is a species?
    • A. 

      A group of organisms that can reproduce and have fertile offspring

    • B. 

      The process by which inherited traits in a population change over generations

    • C. 

      The process by which individuals that are better adapted to their environment are more likely to survive and reproduce

    • D. 

      A characteristic that improves the ability of individuals in a population to survive and reproduce

  • 6. 
    Some whales have tiny leg bones that, which do not aid in their movement or serve any other function; why is this?
    • A. 

      These structures grow and improve in function as they are used

    • B. 

      These structures function at certain times of the year or under certain conditions

    • C. 

      These structures will become adaptations when the environment changes

    • D. 

      These structures have lost all or most of their function over evolutionary time

  • 7. 
    • A. 

      Overpopulation

    • B. 

      Population

    • C. 

      Extinction

    • D. 

      Variation

  • 8. 
    A scientist is studying the DNA of three species. Species A and species B have DNA that is 97% similar. Species C and species A have DNA that is 95% similar. What can the scientist conclude?
    • A. 

      Species B is equally related to both species A and species C.

    • B. 

      Species B has a closer evolutionary relationship with species C than it does with species A.

    • C. 

      Species A has a closer evolutionary relationship with species B than it does with species C.

    • D. 

      Species A has a closer evolutionary relationship with species C than it does with species B.

  • 9. 
    • A. 

      The hawks eat more dark mice than white mice because the dark mice taste better.

    • B. 

      The dark mice are able to reproduce more successfully than the white mice do.

    • C. 

      The hawks eat more white mice than dark mice because they can see the white mice more easily.

    • D. 

      The hawks eat more dark mice than white mice, because they can see the dark mice more easily.

  • 10. 
    Within a population, variation increases the likelihood that some individuals will be able to survive if the environment changes. Which of the following causes variations within a population?
    • A. 

      Changes in extinction rates

    • B. 

      Changes or mutations in the genetic material

    • C. 

      Changes in the breeding rate

    • D. 

      Changes in the environment

  • 11. 
    Which of these scenarios is an example of natural selection?
    • A. 

      Farmers crossbreed two types of cows to produce a breed of cow that has high-quality beef and can tolerate a hot climate.

    • B. 

      Giraffes that have longer necks survive a dry season by eating leaves from the tops of trees. Those giraffes breed more successfully that year.

    • C. 

      Dogs of the same breed that have a desirable coat color are bred with one another to produce more puppies with that same coat color.

    • D. 

      People kill rattlesnakes that rattle when approached by humans are killed, but people do no kill rattlesnakes that remain silent. The quiet snakes survive and breed.

  • 12. 
    Mrs. Ware listed the following four topics on the board. 1. relationships between extinct and living organisms 2. genetic similarities and differences between extinct and modern-day species 3. ancestors of living organisms 4. ways that groups of species are related For which of these topics does the fossil record provide evidence?  
    • A. 

      1 only

    • B. 

      1 and 2

    • C. 

      1, 2, and 3

    • D. 

      1, 3, and 4

  • 13. 
    Kathy is studying adaptations in tropical fish. Which of the following is not an adaptation to prevent predators from eating a fish?
    • A. 

      Camouflage

    • B. 

      A spiny tail

    • C. 

      The ability to change direction quickly

    • D. 

      A sucker-like mouth

  • 14. 
    Scientists use absolute dating to determine
    • A. 

      The physical appearance of fossils

    • B. 

      The chemical composition of rocks

    • C. 

      The numerical age of an object in years

    • D. 

      The approximate date of a rock layer or fossil

  • 15. 
    The Red Sea formed as the African Plate moved apart from the Arabian Plate. Which type of boundary was involved in the formation of the Red Sea?
    • A. 

      Transform Boundary

    • B. 

      Stationary Boundary

    • C. 

      Convergent Boundary

    • D. 

      Divergent Boundary

  • 16. 
    Which description defines an independent variable in a scientific experiment?
    • A. 

      Any factor that is controlled during an experiment

    • B. 

      A factor that is measured to gather results

    • C. 

      Any factor that changes during an experiment

    • D. 

      A factor that is changed or manipulated so that it can be tested

  • 17. 
    Samantha is explaining the difference between scientific laws and scientific theories to another classmate. Which of the following statements should Samantha say to summarize the difference between scientific laws and scientific theories?
    • A. 

      Scientific theories require scientific evidence and scientific laws do not.

    • B. 

      Scientific theories are based on observation and scientific laws are based on opinions.

    • C. 

      Scientific theories explain why something happens, and scientific laws describe what happens.

    • D. 

      Scientific laws are frequently modified, but scientific theories rarely change as new information becomes available.

  • 18. 
    Why do most earthquakes take place at tectonic plate boundaries?
    • A. 

      The rock in the interior of a tectonic plate is stronger, so it does not deform.

    • B. 

      Earthquakes take place where a cold front meets a warm front.

    • C. 

      Earthquakes can only occur at places where magma can reach the surface and transfer energy to rocks.

    • D. 

      Earthquakes take place where energy is transferred to rock by the motion of tectonic plates.

  • 19. 
    As a glacier moves along the ground it transports rocks. These rocks pass over the ground and create scratches in the bedrock. Which statement correctly describes these processes?
    • A. 

      The transport of rocks is an example of weathering and the scratching of the bedrock is an example of erosion.

    • B. 

      The transport of rocks and the scratching of the bedrock are both examples of weathering.

    • C. 

      The transport of rocks and the scratching of the bedrock are both examples of erosion.

    • D. 

      The transport of rocks is an example of erosion and the scratching of the bedrock is an example of weathering.

  • 20. 
    At the zoo, Anya observes that individuals of a certain kangaroo species have slightly different sizes and colors. What characteristic of populations is Anya observing?
    • A. 

      Adaptation

    • B. 

      Evolution

    • C. 

      Selection

    • D. 

      Variation