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 -