| PROTOZOANS These are ________________________. They are classified based on their method of ________________________. They are also ________________________. 1. _____________________ (also known as Sarcodines) � best example is __________ - these organisms move using �false feet� called ________________________. They also use these for engulfing _________. Amoebas reproduce asexually using _____________. 2. ______________________ - also move using pseudopodia � have porous shells (tests) that look like snails � accumulate in limestone deposits � White cliffs of Dover 3. ______________________ - move using cilia � best example is ________________ - these organisms ingest food through their ________ ___________ . _______________ _____________________ help pump water out of the cell � have a protein coat called a ____________________ (helps it to squeeze through tight areas). Many have 2 nuclei � a _______________(contain normal chromosomes that divide by mitosis) & a __________________ (contains small pieces of DNA derived from micronuclei). 4. __________________________ - move using flagella � many of these organisms have ___________________ relationships with other organisms � examples are ___________________. The choanoflagellates are thought to have given rise to _______________ & thus all other animals. 5. ________________________ - freshwater protists w/ 2 flagella � some have chloroplasts & are photosynthetic & some can be heterotrophic & autotrophic � contain ____________________ that detect light (phototaxic � moves toward the light) & an outer protein coat called a ____________ 5. _____________________ - these have no method of movement & are therefore all parasitic. The most common example is _____________________________________. SLIME MOLDS These are all ________________________ & resemble fungi. These begin their life as a slimy mass containing many _____________. The mass is called a ________________ & oozes across the forest floor. They are considered to be ________________. When conditions become harsh, slime molds release __________________. These germinate into flagellated cells that join & form a _____________ that resembles an amoeba. 1. ___________________ - cellular slime molds amoeba-shaped � form a ________ when deprived of food 2. _____________________ - stream along as a multinucleate mass of cytoplasm � give rise to spores when conditions are harsh 3. _____________________ - unicellular parasites or decomposers � cell walls made of cellulose � water molds, white rusts, downy mildews � plant pathogens 4. ______________________ - motile cells with a single, whiplike flagellum DISEASES CAUSED BY PROTISTS Amoebic Dysentery � Giardiasis � Leishmaniasis � Sleeping sickness � Chagas� disease � Toxoplasmosis � Late blight- Malaria - |
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