population

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1. What assumption is made to make mark-release-recapture accurate?

  • The marked sample had had time and opportunity to mix with the population
  • That there has to be large change in population size
  • That the markings cant be easily seen
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2. What method is used to investigate insects found in vegetation?

  • Beating trays
  • Pooters
  • Transects
  • Pitfall traps

3. What is meant by abiotic conditions?

  • All the organisms of one species in a habitat
  • The non-living conditions of an ecosystem
  • The living conditions of a ecosystem

4. What are pooters?

  • A square frame divided into the grid of smaller squares
  • Jars that have rubber bands which seal the top and two tubes stuck through the bung
  • Steep-sided containers that are sunk in a hole in the ground

5. What graph is used to show birth rate, death rate & total population over time?

  • Age-population pyramids
  • Demographic transition model
  • Survival curves
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