Environmental Studies Crossword

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Across
  1. 1. The feeding relationship between the predator and the prey determines the size of the two populations by means of a negative...mechanism
  2. 5. When one organism changes because of the other in a given environment (e.g. lion and zebra)
  3. 7. The term for a population that exceeds its carrying capacity
  4. 9. Factors that help to regulate the growth of a population
  5. 10. By preying on fish populations, sharks prevent them from increasing too rapidly and becoming too...
  6. 11. A species with no living members
  7. 12. Individuals leave a population and do not return
Down
  1. 2. One of the precautions that must be taken to ensure reliability of the mark-recapture method is to ensure no immigration or emigration - i.e. the population must be...
  2. 3. The index used to calculate total population size in the mark-recapture method
  3. 4. The population density that an environment can support (8,8)
  4. 5. A group of different species that inhabit and interact in a particular area
  5. 6. Counting every single individual in a population
  6. 8. When predators remove the sick and weak individuals from the prey population, it keeps the prey population genetically...