วันพฤหัสบดีที่ 25 สิงหาคม พ.ศ. 2559

          Symbiosis 

  1. Parasitism is a non-mutual symbiotic relationship between species, where one species, the parasite, benefits at the expense of the other, the host is harmed
  2. Mutualism is a symbiosis that is beneficial to both organisms involve
  3. Commensalism is a relationship between two organisms where one receives a benefit or benefits from the other and the other is not affected by it.