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Chapter 9 The Microscopic World
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Chapter 9B Kingdom Protista
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II. Kingdom Protista A. Description 2. Most are unicellular
1. Eukaryotic 2. Most are unicellular
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II. Kingdom Protista A. Description a) Some form colonies
2. Most are unicellular a) Some form colonies b) A few are multicellular * Tissues
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II. Kingdom Protista A. Description 2. Most are unicellular
1. Eukaryotic 2. Most are unicellular 3. Most live in freshwater environments
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II. Kingdom Protista B. Three general types Protozoans a) Animal-like
* most are capable of movement * must eat
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II. Kingdom Protista B. Three general types Protozoans b) examples
* paramecium * amoeba
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II. Kingdom Protista B. Three general types Protozoans c) movement
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c) Protozoan Movement Pseudopod Seen in the ameoba “false foot”
Amoeboid movement Seen in the ameoba
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c) Protozoan Movements
Cilia Seen in the paramecium
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c) Protozoan Movements
Flagella Seen in Giardia
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II. Kingdom Protista B. Three general types Protozoans d) nutrition
* consumers
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II. Kingdom Protista d) nutrition * methods - surround and engulf food - oral groove
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Nutrition Methods Surround & Engulf Food Oral Groove
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II. Kingdom Protista B. Three general types Protozoans d) nutrition
e) surviving freshwater environments Necessary for freshwater organisms
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II. Kingdom Protista e) surviving freshwater environments * contractile vacuoles
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contractile vacuoles An organelle in freshwater protozoans that pushes excess water out of their body
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The Variety of Shapes for Contractile Vacuoles
Amoeba Paramecium
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II. Kingdom Protista B. Three general types f) reproduction Protozoans
* Asexually by mitosis (binary fission)
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II. Kingdom Protista B. Three general types f) reproduction Protozoans
*Some reproduce sexually by conjugation
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A temporary connection between 2 organisms in order to exchange DNA
Conjugation A temporary connection between 2 organisms in order to exchange DNA
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Protozoan Reproduction
Binary fission (Amoeba) Conjugation (Paramecium)
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