symbiosis

• Paraitism- one organism, the paraite, gains benefit and the other organism, the host, is harmed.
• the parasite feeds on and lives in or on the host
• Commensalism- one organism, the commensal, gains benefit while the the organism is neither harmed nor benefited.
• Mutualism- both organisms are benefited
• parasites are

  • bacteria
  • viruses
  • fungi
  • plasmodium