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Study Guide Answers

1.     A protozoan is a protist that has ________________ -like characteristics.
     animal
2.     List the four sub-categories of protozoans.
     sarcodinians, zooflagellates, ciliophorans, sporozoans
3.     A ___________________ relationship is one that benefits both organisms involved.
     symbiotic
4.     ________________ are short, cover most of the body, and help the organism to move.
     Cilia
5.     ___________________ are parasitic protozoans that are characterized by the absence of a structure for movement.
     Sporozoans
6.     List three types of unicellular algae.
     dinoflagellates, diatoms, euglenoids
7.     Many brown algae have complex life cycles called the ________________ _____ _________________.
     alternation of generations
8.     Structures called __________ __________________ help to keep the kelp afloat and near the surface.
     air bladders
9.     ___________________ obtain energy through the decomposition of organic materials.
     Molds
10.     A _________________ slime mold has one nucleus and a great deal of cytoplasm.
     plasmodial
11.     What two water molds are parasites of land plants?
     white rusts and downy mildews
12.     What flagellate causes African sleeping sickness?
     Trypanosoma
13.     What insect transmits the disease, malaria?
     the Anopheles mosquito
14.     List three protists that are used in foods.
     carrageenin, agar, algin
15.     The microscopic organisms that float near the surfaces of oceans and lakes are called _________________________.
     plankton
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.