Intro To Parasitology Flashcards
What is symbiosis
When two living creatures live together
What is the majority of interactions of living organisms based upon
Food
What is each member of a symbiotic relationship considered
Symbiont
Describe a predator prey symbiotic relationship
Short lived. Beneficial for one and detrimental for other.
What does phoresis mean
To carry.
What is a phoresic symbiotic relationship
One animal caries another
Describe a mutualist relationship
Both organisms benefit
Describe a commensalist relationship
Benefits one organism and has no harm to the other
Describe a parasitic relationship
The parasite lives on or with the host. Metabolic dependence of one on the other.
What is the differences between predator prey relationship and parasitism
Longer relationship. Don’t usually try to kill host.
What is parasitiasis
Presence of parasite with no clinical signs.
What is parasitosis
Presences of parasites and has a disease of parasites (clinical signs)
What is parasitism
A life relationship in which the parasite uses the host as a habitat and a food source.
What are the advantages to parasitism.
Infinite amount of food b
What is advantageous to a parasite with the movement of its host
Dispersion of the parasite
What does the host protect the parasite against
The environment, heat
How does a parasite evade the host fighting it
Attach to host cells, mutate
What are some ways parasites evade the host
Anticoagulants, opiate saliva secretion, covers self with human proteins. Forms cysts
What does the trypanosoma cause
Less milk, lose weight.
What percentage of herds and individuals are infected with trypanosoma
100% of herds and 90% of individuals
What is trypanosoma considered
A chronic, subacute problem.
What are some general things that parasites cause
Anemia, diarrhea, poor growth, malabsorption, respiratory problems, cardiovascular problems, ocular issues
Dermatological issues
What can you get from uncooked beef
Tapeworm
What can you get from uncooked pork
Trichanosis
