Species Tolerance and Optimum Range
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Questions and Answers

What is tolerance in the context of species survival?

  • The range of external conditions within which a species can survive and reproduce (correct)
  • The ability of a species to adapt to new environments
  • The process by which a species becomes extinct
  • The rate at which a species evolves

    • What happens to organisms when an external factor rises above or falls below their optimum range?

  • They thrive and multiply rapidly
  • They experience stress and expend more energy to maintain homeostasis (correct)
  • They immediately become extinct
  • They migrate to a different environment

    • What is the result of a species being outside its tolerance range?

  • Immediate adaptation to the new environment
  • Reduced energy for growth and reproduction (correct)
  • Increased growth and reproduction
  • Maintenance of homeostasis with minimal energy expenditure

    • What is the zone where organisms are most abundant?

    <p>Optimum range</p> Signup and view all the answers

    What happens to a species beyond its upper and lower limits of tolerance for every external factor?

    <p>It cannot survive</p> Signup and view all the answers

    What is NOT a learning objective mentioned in the passage?

    <p>Describe the process of adaptation</p> Signup and view all the answers

    What is the term for the series of predictable events that occur in a community over time?

    <p>Ecological Succession</p> Signup and view all the answers

    What type of succession occurs when a disturbance affects an existing community but doesn’t completely destroy it?

    <p>Secondary Succession</p> Signup and view all the answers

    What is the term for the first species to colonize barren areas?

    <p>Pioneer Species</p> Signup and view all the answers

    What is the term for the final stage of ecological succession, characterized by a specific, uniform, and stable community?

    <p>Climax Community</p> Signup and view all the answers

    What is an example of primary succession?

    <p>The colonization of a volcanic island after an eruption</p> Signup and view all the answers

    What is a characteristic of ecological succession?

    <p>An increase in species diversity over time</p> Signup and view all the answers

    What is the primary source of energy for ecosystems surrounding deep-sea vents?

    <p>Chemical energy</p> Signup and view all the answers

    What percentage of photosynthesis on Earth occurs in the top 100 meters of the open ocean?

    <p>Most</p> Signup and view all the answers

    What type of ecosystem is characterized by water covering the soil or being present at or near the surface for at least part of a year?

    <p>Wetland</p> Signup and view all the answers

    Where do freshwater and saltwater often mix?

    <p>Estuaries</p> Signup and view all the answers

    What is the primary source of water for lakes and ponds?

    <p>Underground water sources</p> Signup and view all the answers

    What is the primary reason why tropical regions receive more direct sunlight throughout the year?

    <p>The Earth's axis is tilted</p> Signup and view all the answers

    What is the name of the zone that extends from the low-tide mark to the outer edge of the continental shelf?

    <p>Aphotic zone</p> Signup and view all the answers

    What happens to the energy from the sun when it reaches the Earth's surface?

    <p>It is transformed into heat energy</p> Signup and view all the answers

    What is the role of the glass walls in a greenhouse?

    <p>To trap heat energy</p> Signup and view all the answers

    What happens to the heat energy trapped within the greenhouse?

    <p>It creates warmer conditions for plants to survive</p> Signup and view all the answers

    What is the main function of greenhouse gases in the atmosphere?

    <p>To trap heat energy and retain it in the Earth's system</p> Signup and view all the answers

    What is the net result of the Greenhouse Effect on the Earth's surface?

    <p>An increase in temperature</p> Signup and view all the answers

    What is a characteristic of the soil in the Northwestern Coniferous Forest?

    <p>It is rich in humus</p> Signup and view all the answers

    What is the primary factor that determines the type of aquatic ecosystems?

    <p>Depth and distance from shore</p> Signup and view all the answers

    What is the name of the region where photosynthesis cannot occur in aquatic ecosystems?

    <p>Aphotic zone</p> Signup and view all the answers

    What is the name of the ecosystems that are dense forests of evergreen conifers at the northern edge of the temperate zone?

    <p>Boreal forest</p> Signup and view all the answers

    What is the purpose of extra insulation or migration in animals in the Boreal Forest/Taiga biome?

    <p>To survive the harsh winter conditions</p> Signup and view all the answers

    What is the name of the zone where organisms are submerged in seawater at high tide and exposed to air and sunlight at low tide?

    <p>Intertidal zone</p> Signup and view all the answers

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