Prescott's Microbiology
11th Edition
ISBN: 9781260409062
Author: WILLEY, Joanne
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 27.4, Problem 2CC
What is a lichen? Why is this considered an example of a
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Chapter 27 Solutions
Prescott's Microbiology
Ch. 27.2 - What methanogenic substrates are also available in...Ch. 27.2 - What is the nutritional type of the endosymbiotic...Ch. 27.2 - How could one test to see if an insect-microbe...Ch. 27.2 - What is the role of the Riftia tube worms...Ch. 27.2 - Prob. 3CCCh. 27.2 - What is meant by tight trophic coupling between...Ch. 27.2 - Why is it important that the rumen is a reducing...Ch. 27.2 - Describe the mutualism between methanogenic...Ch. 27.2 - How does cooperation differ from mutualism? What...Ch. 27.2 - Why is the X. nematophilaS. carpocapsae symbiosis...
Ch. 27.3 - Prob. 1CCCh. 27.3 - Why is nitrification a good example of a...Ch. 27.3 - Describe the amensalism observed in attine ant...Ch. 27.3 - Prob. 4CCCh. 27.4 - How does myxobacterial predation differ from that...Ch. 27.4 - Define predation and parasitism. How are these...Ch. 27.4 - What is a lichen? Why is this considered an...Ch. 27.4 - What is the competitive exclusion principle? List...Ch. 27 - Prob. 1RCCh. 27 - Prob. 2RCCh. 27 - Prob. 3RCCh. 27 - Prob. 4RCCh. 27 - Prob. 5RCCh. 27 - Prob. 6RCCh. 27 - Prob. 7RCCh. 27 - Prob. 8RCCh. 27 - Prob. 9RCCh. 27 - Prob. 10RCCh. 27 - Prob. 11RCCh. 27 - Prob. 12RCCh. 27 - Prob. 13RCCh. 27 - Describe an experimental approach to determine if...Ch. 27 - Prob. 2ALCh. 27 - Prob. 3ALCh. 27 - Prob. 4AL
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- Imagine you are in a developing country where sanitation is poor. Having read about paracitic protists in water and damp soil, what would you consider safe to drink? What foods might be best to avoid or which methods might make them safe to eat?arrow_forwardHow are diatoms and dinoflagellates used in monitoring water quality? Cite two (2) examples. What are zooxanthellae? Describe their role in symbiotic relationships.arrow_forwardwrite an article on Cryptosporidium a pathogenic eukaryote parasite. What is the natural habitat for this organism? (water, soil, humans, plants, etc.) What clinical significance does this organism have for humans? (What disease/infections does it cause in humans?) What is the mode of transmission to humans? (How do you get an infection with this organism?) What is the worldwide geographic distribution for this organism? (Where is it found, where have there been reported cases or outbreaks lately?)arrow_forward
- Lichen-forming fungi are generally capable of reproducing by the production of ascospores: single-celled reproductive units small enough to be carried away on the air. What questions does this fact pose about the obligate / facultative nature of this mutualism?arrow_forwardwhat is the only known coccidial parasite that does not have intermediate hosts?arrow_forward3) Did the planaria exhibit rheotaxis? yes If so, was it positive or negative?Negative 4) How would this behavior be beneficial for planaria? 5) Did the planaria exhibit chemotaxis? es If so, was it positive or negative? ositve 6) How would this behavior be beneficial for planaria? 7) Did the planaria exhibit geotropism?Ues If so, was it positive or negative? _Possive 8) How would this behavior be beneficial for planaria?arrow_forward
- In Platyhelminthes, what are the advantages/disadvantages of being a parasite? Free living? Why is there an observed loss of organs and structures in parasitic species?arrow_forwardWhat are two primary requirements of a parasite from host?arrow_forwardProtists are a group of eukaryotic organisms that are brought together by scientists mostly by convenience. I) What is the relationship between all protists that ties them together? ii) provide an example of a autotrophic and heterotrophic protists group, iii) what is the relationship between the multicellular eukaryotes and the protists?arrow_forward
- Why are red algae red? What distinguishes plasmodial and cellular slime molds? What are the ecological roles of protists? Why are photosynthetic protists so important to marine/aquatic ecosystems? What limits the growth of these organisms and what causes blooms? What will be affected if marine producers are disrupted?arrow_forward1) Did the planaria exhibit phototaxis?_es Hogative If so, was it positive or negative? 2) How would this behavior be beneficial for planaria? 3) Did the planaria exhibit rheotaxis?yes If so, was it positive or negative? Negative 4) How would this behavior be beneficial for planaria? 5) Did the planaria exhibit chemotaxis? es If so, was it positive or negative? osiive 6) How would this behavior be beneficial for planaria? 7) Did the planaria exhibit geotropism?_Ues If so, was it positive or negative? Posisve 8) How would this behavior be beneficial for planaria?arrow_forwardMycorrhizal fungi form obligate symbiotic relationships within plants. They are able to fix N2 into a usable form of nitrogen. In exchange, they receive nutrition from the plant. Which of the following is a true statement concerning mycorrhizal fungi? a) Finding a host plant is not crucial to their survival. b) They are a dominant species. c) They cannot survive without the host plant. d) They are considered plant parasites.arrow_forward
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