single celled eukaryotes in animal and human health Flashcards
all living organisms interact with abiotic and biotic components, what are they?
abiotic: physical and chemical environment
biotic: other organisms
intraspecific interactions
between individuals of the same species
interspecific interactions
different species
the symbiosis interactions “living together”
commensalism (one gains one neutral)
mutualism (both gain)
parasitism (one gains, one harmed)
other types of interspecific interactions (other than the symbiosies)
neutralism (neitheir gain nor harmed)
competition (both harmed)
amensalism (one harmed one neutral)
predation/herbivory: (one harmed one gains)
examples of mutualism
ants and thorny acacia; ants live in thorns and fight off herbivores and plant competitors,
finding nemo fish
commensalism example
pigs and ciliate balantidium coli
endoparasite
lives within host
ectoparasite
lives on external surface of host
malaria
apicomplexan, invades RBCs, human parasite, causes cells to become sticky
asexual reproduction in humans, sexual reproduction in mosquitos
coccidiosis
apicomplexan, parasite of livestock, associated w stress and overcrowding, invades cells lining GI tract
african trypanosomes
flagellate, transmitted by tsetse fly, affects humans as sleeping sickness and cattle as nagana, parasite lives in bloods, invades CNS, leads to neurological disease, always fatal once CNS invasion occurred