Population Growth Factors

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Questions and Answers

What type of interaction is characterized by one organism benefiting while the other is neither benefited nor harmed?

  • Mutualism
  • Decomposers
  • Ecosystem
  • Commensalism (correct)

What is the functional unit of nature that varies greatly in size?

  • Community
  • Ecosystem (correct)
  • Abiotic Components
  • Biotic Components

What type of organisms are dependent on plants for both oxygen and food?

  • Only primary consumers
  • Only herbivores
  • All living organisms (correct)
  • Only carnivores

What is the role of producers in an ecosystem?

<p>To produce their own food using solar energy (B)</p> Signup and view all the answers

What is the term for organisms that feed on primary consumers?

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

What is the role of decomposers in an ecosystem?

<p>To decompose organic matter (A)</p> Signup and view all the answers

What is the primary factor that determines the type of population growth model in a given environment?

<p>Availability of food resources (B)</p> Signup and view all the answers

What is the term for the movement of individuals into a habitat from elsewhere?

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

Which type of population interaction involves one species benefiting at the expense of another?

<p>Parasitism (C)</p> Signup and view all the answers

What is the term for the number of deaths in a population in a given time period?

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

What is the primary function of autotrophs in an ecosystem?

<p>To produce energy which is transferred through various trophic levels (D)</p> Signup and view all the answers

In which type of population growth model does the population grow rapidly in the absence of limiting factors?

<p>Exponential Growth (C)</p> Signup and view all the answers

What is the term for the interaction between different species in which both are harmed?

<p>Competition (C)</p> Signup and view all the answers

What type of ecological pyramid represents the total mass of organisms at each trophic level?

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

What is the term for the variety of plant and animal life on earth?

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

What is the type of ecological succession in which plants and animals first colonize a barren piece of land?

<p>Primary Succession (D)</p> Signup and view all the answers

What is the main difference between primary and secondary ecological succession?

<p>The presence or absence of a pre-existing ecosystem (B)</p> Signup and view all the answers

What is the function of the pyramid of productivity in an ecosystem?

<p>To represent the total amount of energy present at each trophic level (B)</p> Signup and view all the answers

What is the relationship between species richness and area on a logarithmic scale?

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

What is a consequence of loss of biodiversity in a region?

<p>High variability in certain ecosystem processes (A)</p> Signup and view all the answers

What percentage of the total atmospheric oxygen on earth is provided by the Amazon forests?

<p>20% (A)</p> Signup and view all the answers

What is the term for the protection and conservation of a variety of animals and plant species in their natural habitat?

<p>In-situ conservation (B)</p> Signup and view all the answers

What is the primary cause of global warming?

<p>Increase in the levels of greenhouse gases in the atmosphere (A)</p> Signup and view all the answers

What is an example of ex-situ conservation?

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

What is a common consequence of environmental issues?

<p>Degradation of air, water, and soil quality (C)</p> Signup and view all the answers

What is a cause of loss of biodiversity?

<p>Habitat loss and fragmentation (B)</p> Signup and view all the answers

What is pollution defined as?

<p>An undesirable change in the biological, chemical, and physical composition of air, water, and soil (B)</p> Signup and view all the answers

Why should biodiversity be conserved?

<p>To derive sustainable benefits for present and future generations (B)</p> Signup and view all the answers

What is the role of birds, bees, and butterflies in the ecosystem?

<p>They are pollinating agents in the ecosystem (D)</p> Signup and view all the answers

What is the result of the increase in the levels of greenhouse gases in the atmosphere?

<p>The heat is prevented from escaping into outer space (C)</p> Signup and view all the answers

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