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Protozoans Quiz
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1

What are the “defining characteristics” of the Kingdom Protozoa?
2

What is the evidence that “all animals … have descended from certain flagellated protozoans”?
3

Which flagellated protozoans are thought to be the ancestral group?
4

Distinguish between “monophyletic” and “paraphyletic.
5

Why are protozoans “important”?
6

What is the major characteristic that sets protozoans apart from “animals” (metazoans)?
7

Complexity in protozoans results from ____________________________.
8

Why are contractile vacuoles important particularly in freshwater protozoans?
9

How do protozoans reproduce asexually?
10

What is encystment? Why is it important?
11

What are the “defining characteristics” of the ciliates (Phylum Ciliophora)?
12

Why are the ciliates considered to be “advanced” protozoans?
13

A second unique characteristic of ciliates is dimorphic nucleation. Explain. What is conjugation?
14

The ameboid protozoans (amoebozoans, foraminiferans, radiolarians, heliozoans) use _______________ for 2 functions: locomotion and feeding.
15

What is the “defining characteristic” of the amoebozoans? What are the 2 types?
16

Distinguish between “naked” and “shelled” amebas.
17

What are the “defining characteristics” of foraminiferans?
18

What causes the pink sand of Bermuda?
19

What are the “defining characteristics” of radiolarians? What specific type of pseudopods do they have? What is the composition of the skeleton (test)?
20

What is indicated by the presence of forams and radiolarians in the ocean bottom “ooze”?
21

Distinguish between “phytoflagellates” and “zooflagellates”.
22

What organisms cause “red tides”? bioluminescence? ciguatera?
23

What is Pfiesteria and why is it important? (see: www.pfiesteria.org)
24

What are “zooxanthellae” and why are they important?
25

Why are the choanoflagellates important?





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