Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 18.1, Problem 3MC
Why are evolutionary biologists interested in protists?
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Chapter 18 Solutions
Biology: Concepts and Investigations
Ch. 18.1 - What features define the protists?Ch. 18.1 - Prob. 2MCCh. 18.1 - Why are evolutionary biologists interested in...Ch. 18.2 - Prob. 1MCCh. 18.2 - Prob. 2MCCh. 18.2 - List and describe the characteristics of the major...Ch. 18.3 - What mode of nutrition do the slime molds and...Ch. 18.3 - Prob. 2MCCh. 18.3 - Prob. 3MCCh. 18.4 - Prob. 1MC
Ch. 18.4 - Prob. 2MCCh. 18.4 - List three diseases caused by flagellated...Ch. 18.4 - Compare and contrast amoebae, foraminiferans, and...Ch. 18.4 - How do ciliates move and eat?Ch. 18.4 - Prob. 6MCCh. 18.5 - Prob. 1MCCh. 18.5 - Prob. 2MCCh. 18.6 - Use the food chain in figure 18.21a to explain why...Ch. 18.6 - Prob. 2MCCh. 18 - Which of the following is NOT a characteristic of...Ch. 18 - Suppose you are studying a protist under a...Ch. 18 - Some protist lineages arose from secondary...Ch. 18 - Prob. 4MCQCh. 18 - Why are DNA sequences useful in the classification...Ch. 18 - Explain why evolutionary biologists are interested...Ch. 18 - The amoeba Pelomyxa palustris is a single-celled...Ch. 18 - How is it adaptive for a red alga to have pigments...Ch. 18 - How are kelp similar to trees? How are they...Ch. 18 - Prob. 5WIOCh. 18 - Prob. 6WIOCh. 18 - Prob. 7WIOCh. 18 - Suppose someone hands you a microscope and a...Ch. 18 - Review the Survey the Landscape figure in the...Ch. 18 - Prob. 2PITCh. 18 - Molecular data have changed protist...
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- What kinds of scientific evidence support the hypothesis that protists are a paraphyletic group?arrow_forwardCertain protists species cause human disease that are difficult to treat and are often deadly. How does the evolutionary relatedness of humans and protists explain the difficultly of treating a person infected with a pathogenic protist?arrow_forwardwhat are some themes in the structural and functional diversity of protists? Nutritional? reproductive?arrow_forward
- If you were to create an evolutionary tree in which amoebas were included within the kingdom of organisms to which they were the most closely related (rather than with protists, where they are currently placed), where would you put them?arrow_forwardDraw a simple cladogram illustrating the relationships among the following: Common ancestor of all organisms, domain Eukarya, domain Bacteria, domain Archaea. To which domain do the organisms informally known as protists belong? To which domain do you belong?arrow_forwardWhat distinguishes protists from prokaryotes? What distinguishes protists from fungi, land plants, and animals?arrow_forward
- What are some prooves of Endosymbiotic theory?arrow_forwardProtists are(a) single-celled eukaryotes.(b) multicellular eukaryotes.(c) single-celled prokaryotes.(d) single-celled akaryote. Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.arrow_forwardCompare the phylogenetic tree of protists with the secondary endosymbiosis theory which proposes how photosynthetic protists evolved. Are both reconcilable? Explain.arrow_forward
- What is endosymbiosis and why is it considered to be the source of eukaryotic diversity? Why are we confident this only happened once? What is primary and secondary endosymbiosis? Was there another endosymbiotic event that led to a third lineage? What group of organisms possesses a structure that might suggest this possibility and what is the structure? Why is the structure in question different from the ancestor of other plastids?arrow_forwardwhat function did molecular signals and receptors have in the protistan ancestors of complex organisms?arrow_forwardWhat are the important characteristics of protists?arrow_forward
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