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what is a colonial flagellate hypothesis? How colonial organisms differ from multicellular?Which structure is represented in this colonial flagellate hypothesis? Which is its role?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter27: Protists

Section27.1: What Is A Protist?

Problem 1SB: What distinguishes protists from prokaryotes? What distinguishes protists from fungi, land plants,...

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Concept explainers

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.

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In the early 1930s, G. F. Gause carried out a series of experiments using two species of ciliated protists (Paramecium), which are single-celled eukaryotic protozoans. The protists were cultured together and separately, with the bacteria being the single food source. The results are shown in the figure below. (a) Based on figure, identify and explain the interaction that is taking place between P. caudatum and P. aurelia. (b) Clam shrimp, a natural predator to P. caudatum, is introduced to the culture containing both P. caudatum and P. aurelia after 24 days. Predict the impact that the clam shrimp will have on the culture and the populations. Justify your prediction.
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Is protist dna in a nucleus unicellular or multicellular?According to the phylogeny presented in this chapter which protists are in the same eukaryotic supergroup as plants a) green algae b) dinoflagellates c) red algaed both a and c in a lifecycle with alternation of generations multicellular haploid forms alternate with a unicellular haploid forms b unicellular diploid formsc multicellular haploid forms d) multicellular diploid forms
a salt water protist is placed in fresh water. Which of the following events would most likely occur? a.) the cell would shrink b.) the cell would remain the same (no change in shape) c.) the cell would start to cry d.) the cell would swell e.) an increase in the action of its cilia
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You have discovered a new species aquatic protist that is a primary producer. It cannot swim on its own. It appears to be resistant to physical damage from wave action due to the presence of a glass-like wall. Which of the following organisms would this organism be most like? A) diatom B) dinoflagellate C) apicomplexan D) red alga
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What features of the squid–Aliivibrio symbiosis make it an idealmodel for studying animal–bacterial symbioses?