Energy, Matter & Biogeochemical Cycles
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Questions and Answers

What is the term for the number of organisms of a particular species in a population?

  • Carrying capacity
  • Population density
  • Abundance (correct)
  • Ecological niche

Which type of species selection is characterized by a high growth rate, exploiting less crowded niches, and many offspring?

  • Keystone species
  • K-selected species
  • Fundamental niche species
  • R-selected species (correct)

What is the term for the divided use of resources that allows a number of species to coexist in an ecosystem?

  • Competitive exclusion principle
  • Realized niche
  • Ecological niche
  • Resource partitioning (correct)

What is the term for the maximum size of a population that an ecosystem can support with its limited resources?

<p>Carrying capacity (D)</p> Signup and view all the answers

What type of distribution is characterized by individuals being spaced irregularly, with the location of one organism not affecting the location of another?

<p>Random distribution (D)</p> Signup and view all the answers

What is the term for a species of relatively low abundance that has a disproportionately large influence over lower trophic levels?

<p>Keystone species (A)</p> Signup and view all the answers

What is the primary source of energy for Earth?

<p>The Sun (B)</p> Signup and view all the answers

What is the term for the total mass of biological matter in a given area?

<p>Biomass (B)</p> Signup and view all the answers

What is the process by which producers convert light energy into carbohydrates?

<p>Photosynthesis (A)</p> Signup and view all the answers

What is the term for the maximum population size that can be supported by an environment?

<p>Carrying Capacity (A)</p> Signup and view all the answers

What is the term for organisms that can synthesize their own organic compounds from inorganic materials?

<p>Autotrophs (B)</p> Signup and view all the answers

What is the term for the pathway of matter through the living and non-living components of an ecosystem?

<p>Biogeochemical Cycle (D)</p> Signup and view all the answers

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