organisms in their environment

• biotic factors:

  • animals
  • plants
  • people
  • birds
• abiotic factors:

  • water
  • sunlight
  • soil
  • rocks
  • wind
  • temperature
• a biotic factor is a living organism that shapes its environment
• an abiotic factor is a non-living part of an ecosystem that shapes its environment
• invasive species are species that are from another region and dont belong in their new environment which causes harm to native species
• a native species is found in a certain ecosystem due to natural processes such as natural distribution
• random sampling is used to estimate population size of a particular species