3.5 - symbiosis

• What are two types of symbiosis?

  • parasitism
  • mutualism
• Define symbiosis?

  an intimate relationship that has coevolved between members of two different species
• How do parasites benefit from their host?

  Energy and nutrients
• How is the host harmed by a parasite?

  Loss of nutrients and energy
• Why can’t parasites survive out of contact with their host?

  They have a limited metabolism
• What three ways can parasites be transmitted to new hosts?

  • Direct contact
  • resistant stages
  • vectors
• What is mutualism

  Where both partner species benefit in the interdependent relationship