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Unformatted text preview: then grows to adult size Sexual (some)- Syngamy- fertilization of one gamete by another Autogamy- gametic nuclei arise by miosis and fuse to form a zygote within the same organism that produced them Conjucation- exchange of gametic nuclei occurs between paired organisms 40. Encystment (cyst formation)- to survive during harsh conditions. It is necessary for some parasitic forms to transfer from host to host Excysment (escape from cysts)- favorable environmental condition or conditions found in a new host 41. Trypanosoma brucei-African sleeping sickness, transmitted by tsetse flies Trypanosoma cruzi- Chagas disease, transmitted by kissing bugs Giardia lablia- transmitted by ingestion of cyst, causes diarrhea Toxoplasma gondii- human infections through ingestion of improperly cooked meat, ingestion of cysts from cat feces Malaria-PARASITIC protozoa are responsible for these diseases...
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- Spring '08