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2nd 9 Weeks Env Review

Quiz by Tina Lewis

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19 questions
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  • Q1
    How do most primary producers make their own food?
    by using light energy to make carbohydrates
    by breaking down remains to make carbon dioxide
    by using chemical energy to make carbohydrates
    by changing water into carbon dioxide
  • Q2
    Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is what?
    used in reproduction
    stored as body tissue
    eliminated as heat.
    stored as heat.
  • Q3
    The illustration shows a marine food web. Pyramids often are used to show the relative amount of energy that each organism in the next higher level can obtain from the lower-level organism. Which organisms in this food web would make up the lowest level of the pyramid?
    killer whale
    leopard seal, elephant seal, crabeater seal
    small animals
  • Q4
    Which of the following correctly describes the difference between mutualism, commensalism, and parasitism?
    Mutualism and commensalism cause no harm to either organism, whereas parasitism causes harm to one organism.
    Commensalism benefits both organisms whereas parasitism and mutualism harm one organism
    Mutualism and parasitism cause no harm to harm to either organism, whereas commensalism causes harm to both organism.
    Parasitism causes harm to one organism whereas mutualism and commensalism benefit both organisms.
  • Q5
    Energy is distributed among trophic levels in an ecosystem. Which of the following organisms in an African savanna ecosystem exists at the level with the greatest amount of available energy
    the hyena that eats the meerkat
    the meerkat that eats insects
    the insects that eat plants
    the lion that eats the hyena
  • Q6
    After an ecological disaster, the reestablishment and development of an area begins. Which is the correct order of events that occur during primary succession? 1. Soil creation occurs as organisms die and degrade. 2. Pioneer species begin growing. 3. Fertile soil and mature plants are seen. 4. Volcano erupts.
    4, 1, 3, 2
    3, 4, 2, 1
    4, 2, 1, 3
    2, 4, 1, 3
  • Q7
    Scientists speculate that Earth is undergoing a major climate change. What is one of the environmental changes that may result?
    changes to food webs
    earthquakes along a fault line
    volcanic activity
    changes in tides
  • Q8
    Which of the following BEST describes the impact of introducing pythons, which are invasive predators, in the Florida Everglades?
    Pythons would not survive in the Everglades.
    Pythons would not affect the native species population.
    Pythons would decrease the populations of native species.
    Pythons would increase the populations of native species.
  • Q9
    Nitrogen fixation is an important part of the Nitrogen Cycle. Nitrogen fixation is carried out primarily by what?
  • Q10
    Which of Earth's cycles does not depend on biotic interactions in order to be maintained?
    nitrogen cycle
    phosphorus cycle
    water cycle
    carbon cycle
  • Q11
    A species is a group of similar organisms that
    all have exactly the same traits.
    can mate with one another and produce fertile offspring.
    can live together on an island.
    can migrate to an island from the mainland.
  • Q12
    Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?
    natural selection
  • Q13
    What evidence suggests that the ancestors of whales once walked on land?
    Whales breathe through lungs.
    Scientists have found fossils of whale-like creatures that walked on land.
    Whales have similar DNA to elephants.
    Whales perform walking motions as they swim.
  • Q14
    If two organisms look very similar during their early stages, this is evidence that the organisms
    evolved from a common ancestor.
    are not related.
    evolved from different ancestors.
    have exactly the same DNA.
  • Q15
    A trait that helps an organism survive and reproduce is called a(n)

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