Understanding Global Ecosystem Changes Quiz
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Questions and Answers

What is the term used to describe a population of populations?

  • Trophic level
  • Ecosystem
  • Community
  • Metapopulation (correct)

How does seasonality impact the number of animals within an ecosystem?

  • Increases strain on prey (correct)
  • Has no impact on the ecosystem
  • Reduces strain on predators
  • Decreases strain on trophic levels

What does genetic variability refer to in wildlife populations?

  • The population growth rate
  • The number of individuals in a population
  • The diversity of genetic traits within a population (correct)
  • The number of habitats available to a species

Which factor contributes to global wildlife population fluctuations related to migration?

<p>Decreased insect populations (B)</p> Signup and view all the answers

How do emerging diseases affect global wildlife populations?

<p>Cause rapid fluctuations in population sizes (D)</p> Signup and view all the answers

In what way does climate change impact wildlife populations?

<p>Results in early flowering of plants (B)</p> Signup and view all the answers

What is the term used to describe an ecological factor that becomes a barrier to populations of a species reproducing, leading to the formation of new species?

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

Which term refers to a small group within a population of animals that are free to reproduce with each other?

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

What can result from ecological driven reproductive isolation?

<p>New species formation (C)</p> Signup and view all the answers

Which term describes the size categories of ecosystems, ranging from very small to large?

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

What can happen if there are too many predators in an ecosystem?

<p>Decrease in prey population (D)</p> Signup and view all the answers

What type of periods are characterized by a lack of precipitation and are known as prolonged dry periods?

<p>Drought periods (D)</p> Signup and view all the answers
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