Populations and Communities - Page 3

Questions
  • What is the simplest grouping of more than one kind of organism in the biosphere called?
  • How is population different from community?
  • What are interspecific competition, predation, and parasitism? How do these three negative interactions with other species affect a population?
  • Would you expect most ecosystems to contain more species of primary consumers or secondary consumers?
  • Give at least 5 reasons why it would be difficult to do a direct count of a population?
  • Why are ecological pyramids shaped as pyramids?