| Term | Definition |
|---|
| Symbiosis | living together. 2 species or organisms that live together |
| Mutualism | highly interdependent association, cannot survive without each other. Both benefit, no harm. |
| Commensalism | One way benefit, but no harm |
| Parasitism | intimate relationship between 2 organisms where parasite lives at expense of host. 1 benefits, other is harmed (exceptions) |
| Ectoparasite | Lives on surface of host |
| Endoparasite | Lives inside the host |
| Mesoparasite | Penetrates external openings, ie ear, cloaca |
| Definitive Host | Where parasite reaches sexual maturity |
| Intermediate Host | Required by parasite to complete its life cycle. Usually undergoes morphological or physiological change in it |
| Paratenic Host | Optional transport host- no detectable change in parasite |
| Vector | Host that plays an active role in transmission, can be a definitive host or an intermediate host |
| Parasite may harm host | Harmful effects on host, compete for Nutrients. destruction/alteration of tissues. mechanical interference, destruction of bile ducts by liver flukes. Immunopathology, 1.) Hypersensativity: overstimualtion of immune system causing damage to tissue. 2) Autoimmunity: immune system attacks host. |
Combine with other sets
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