test one quiz portion

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misskatrina99
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test one quiz portion
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2013-09-30 01:12:25
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test one quiz portion
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  1. Altruism is more likely when
    individuals are closely related, the reproductive cost of helping is relatively low compared to the benefits of helping
  2. C4 photosynthesis evolved in
    hot, bright tropical environments
  3. Plant material is not a very nutritious food source for herbivores because
    plant material is composed primarily of carbon-rich compounds that are hard to digest
  4. Reproduction in females is primarily limited by
    access to resources
  5. Leaves of plants adapted to full sunlight typically have
    a high rate of maximum light-saturated photosynthesis (Pmax), a high respiration rate, a high light-compensation point
  6. According to optimal foraging theory, a specialist predator likely
    expends a high amount of energy handling additional prey items., expends a high amount of energy searching for additional prey items.
  7. The beetle would conserve more of its internal water when
    it was in the shade because the vapor pressure deficit between the beetle and the air would be lower.
  8. In CAM photosynthesis
    CO2 is fixed by PEP carboxylase and RUBISCO in the mesophyll.
  9. For water to move from the soil, through plants, and into the atmosphere, the water potential (Ψ) gradient must be
    Ψsoil > Ψroot > Ψstem > Ψleaf > Ψair
  10. Plants can increase their water uptake by
    increasing the relative amount of biomass allocated to roots.
  11. Photorespiration only occurs in C3 plants
    'True'.
  12. Zone in a river that is likely to experience the smallest variation in temperature

    Current that originates near the equator and keeps the temperature of the United Kingdom warmer than it would be given its latitude

    Ecosystem that is found at the intersection between marine and freshwater ecosystems

    Marine intertidal zone that is likely to experience the highest variation in salinity

    Type of marine shallow water ecosystem that you would likely find in the temperate zone
    Zone in a river that is likely to experience the smallest variation in temperature. – Deep pool, 

    Current that originates near the equator and keeps the temperature of the United Kingdom warmer than it would be given its latitude. – Gulf stream

    Ecosystem that is found at the intersection between marine and freshwater ecosystems.  – Estuary 

    Marine intertidal zone that is likely to experience the highest variation in salinity. – Upper intertidal

    Type of marine shallow water ecosystem that you would likely find in the temperate zone.  – Kelp forest
  13. Seasonal changes in body color directly affect the total heat stored in an organism by
    affecting the amount of heat gained/lost from radiation
  14. An ectothermic organism that basks on a hot surface is increasing its energy storage by
    increasing the amount of energy gained by conduction
  15. Which of the following energy balance equations is most suited to ectothermic animals?
    HS =  Hcd + Hcv + Hr - He
  16. Temperature affects the distribution of
    both ectothermic and endothermic organisms
  17. The metabolic rate of an endothermic organism increases exponentially as temperature increases
    false
  18. Deserts are often found
    At 30 degrees N and S latitude, On the lee (back-slope) of mountain ranges
  19. The most conclusive way to determine if temperature is an important variable for controlling the reproductive output of a given plant is to
    conduct an experiment where the reproductive output of individuals exposed to different temperatures is measured
  20. Simulation models must be able to accurately predict an ecological phenomenon if they are to be useful for ecological studies.
    false
  21. Desert ecosystems are defined as hot and dry because temperature always exceeds rainfall
    false

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