Biology Semester 2 Final

32 Questions | Total Attempts: 50

SettingsSettingsSettings
Please wait...
Biology Semester 2 Final

Questions and Answers
  • 1. 
    Refer to the illustration. The photosynthetic algae are
    • A. 

      Parasite

    • B. 

      Producers

    • C. 

      Consumers

    • D. 

      Decomposers

  • 2. 
    The finches that Darwin studied differed in the shape of their beaks. According to Darwin, the finches probably
    • A. 

      Option 1

    • B. 

      Were descended from similar birds in Africa.

    • C. 

      Would become more similar over time.

    • D. 

      Had become adapted to eating different diets.

  • 3. 
    As a population reaches its carrying capacity, resources become more scarce. Which of the following would increase within the population?
    • A. 

      Available shelter

    • B. 

      Nesting sites

    • C. 

      Competition

    • D. 

      Birthrate

  • 4. 
    Which resource is considered renewable?
    • A. 

      Coal

    • B. 

      Wind

    • C. 

      Natural gas

    • D. 

      Oil

  • 5. 
                                                          Refer to the illustration. The American Revolution began in 1776. According to the graph, what was the approximate world population at that time?                                                                                                                                                     
    • A. 

      1 million

    • B. 

      2 million

    • C. 

      500 thousand

    • D. 

      I billion

  • 6. 
                                            Refer to the illustration. Because the two species of barnacles attempt to use the same resources, they are
    • A. 

      Mutualistic.

    • B. 

      Competitors.

    • C. 

      Parasites.

    • D. 

      Parasites.

  • 7. 
    Which of these activities causes the greatest loss of biodiversity?
    • A. 

      Habitat loss

    • B. 

      Air pollution

    • C. 

      Water pollution

    • D. 

      Soil erosion

  • 8. 
    Refer to the illustration. Which time period shows exponential growth of the population?
    • A. 

      Period D

    • B. 

      Period A

    • C. 

      Period C

    • D. 

      Period B

  • 9. 
    The water cycle continuously moves water between the atmosphere, land, and
    • A. 

      Trees

    • B. 

      Oceans

    • C. 

      Humans

    • D. 

      Ground water

  • 10. 
    The major idea that Darwin presented in his book The Origin of Species was that
    • A. 

      Elephants and bacteria changed constantly.

    • B. 

      Animals changed, but plants remained the same.

    • C. 

      Species changed over time by natural selection.

    • D. 

      Species changed over time and never competed with each other

  • 11. 
    Renewable sources of energy
    • A. 

      Must be created in laboratories.

    • B. 

      Can replenish themselves naturally.

    • C. 

      Were never utilized until the 20th century.

    • D. 

      Are manufactured from fossil fuels.

  • 12. 
    Refer to the illustration. Level A is composed of
    • A. 

      Ominvores

    • B. 

      Producers

    • C. 

      Herbivores

    • D. 

      Carnivores

  • 13. 
    Natural selection is the process by which ?
    • A. 

      Organisms with traits well-suited to their environment reproduce at a greater rate than less well-adapted organisms in the same environment.

    • B. 

      Change occurs in the genetic characteristics of individuals that live together in an environment from one generation to another.

    • C. 

      Baseball players pass on the trait for strong arm muscles to children.

    • D. 

      Use and disuse of a characteristic leads to evolutionary change.

  • 14. 
    What happens in a food chain if one of the lower consumers is eliminated or reduced in numbers?
    • A. 

      There is little effect

    • B. 

      The whole food chain dies out

    • C. 

      Those higher in the food chain must find alternate sources of food; those lower in the food chain must be controlled by other consumers

    • D. 

      Those higher in the food chain benefit; those lower in the food chain suffer

  • 15. 
    High biodiversity often helps make an ecosystem more
    • A. 

      Susceptible to disease.

    • B. 

      Resilient.

    • C. 

      Competitive.

    • D. 

      Challenging to survival.

  • 16. 
    Refer to the illustration. At each trophic level, the energy stored in the organisms in that level is about
    • A. 

      Ten percent of the energy in the level above it.

    • B. 

      50 percent of the energy in the level below it.

    • C. 

      100 percent of the energy in the level below it.

    • D. 

      Ten percent of the energy in the level below it.

  • 17. 
    All living things are made of
    • A. 

      Carbon

    • B. 

      Boron

    • C. 

      Mercury

    • D. 

      Silicon

  • 18. 
    Nitrogen is a component of
    • A. 

      Fats

    • B. 

      Water

    • C. 

      Carbohydrates

    • D. 

      Proteins

  • 19. 
    Which of the following would not be included in a description of an organism's niche?
    • A. 

      The humidity and temperature it prefers

    • B. 

      Its tropic level

    • C. 

      Its number of chromosomes

    • D. 

      When it reproduces

  • 20. 
    Linnaeus's two-word system for naming organisms is called
    • A. 

      Binomial nomenclature.

    • B. 

      Taxonomic evolution.

    • C. 

      Genus species.

    • D. 

      Greek polynomials.

  • 21. 
    As the density of a population increases, the effects of starvation and disease also often increase. These are which kind of factors?
    • A. 

      Abiotic

    • B. 

      Symbiotic

    • C. 

      Density-dependent

    • D. 

      Density-independent

  • 22. 
    The disappearance of a species from the Earth is referred to as
    • A. 

      Extinction

    • B. 

      Deforestation

    • C. 

      Biodiversity

    • D. 

      Recycling

  • 23. 
    Which of the following natural cycles involves photosynthesis and cellular respiration?
    • A. 

      Water cycle

    • B. 

      Phosphorus cycle

    • C. 

      Carbon cycle

    • D. 

      Nitrogen cycle

  • 24. 
    A producer is the ecological role that
    • A. 

      Is at the top of the energy pyramid.

    • B. 

      Eats other organisms.

    • C. 

      Converts the energy of sunlight into high-energy organic compounds.

    • D. 

      Breaks down dead organisms into recyclable simple chemicals.

  • 25. 
    Two species occupying the same niche would be  __________ with each other.
    • A. 

      Competition

    • B. 

      At peace

    • C. 

      Coevolving

    • D. 

      In harmony

Back to Top Back to top