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Unformatted text preview: sist Habitats
Symbiosis (104 species)
(Close association of 2 different organisms)
different Mutualism: Beneﬁcial to both organisms
(Ex: Protozoan living within gut of termites)
of Commensalism: Beneﬁcial for the protozoan,
no beneﬁt/no harm for the host
(Ex: Protozoa from the rumen of cows)
cows Parasitism: One organism living at the expense of the other.
(Infectious Protozoa) Pathogen: Parasites that injure their host
Heterotroph: Feed on organic materials
organic Ingested diatoms Dead or alive
Dead alive bacteria, protozoa, molds, algae…
protozoa molds algae
Ingest particules (holozoic, phagotrophy),
require mechanisms for food capture.
Puncturers, Pierce the prey cell with a peduncle,
digest and absorb the content....
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- Spring '08