Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 27, Problem 5TY
What ecological role do cyanobacteria play?
- a. producers
- b. consumers
- c. decomposers
- d.
parasites - e. none of the above
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Which microbe is NOT found present in water with eutrophication events(s)?
A. Nitromonas sp.
B. Bacteroides sp.
C. Anabaena sp.
D. Cyanobacteria
.further break down the
nutrients left behind by
scavengers.
A. Cyanobacteria
B. Proteus
C. Fusarium
D. Penicillium notatum
Which of the following statements DOES NOT describe nitrogen fixing bacteria?
A. Can be found only as a symbiotes associated with the root nodules of legumes.
B. Maybe be present in soil.
C. Converts atmospheric nitrogen to organic nitrogen.
D. Composed of many species of bacteria.
Chapter 27 Solutions
Biology
Ch. 27.2 - Core Skill: Connections Look ahead to Section...Ch. 27.2 - Prob. 2CSCh. 27.2 - Structure and Movement Concept Check: Does the...Ch. 27.2 - Prob. 3CSCh. 27.3 - Prob. 1CCCh. 27.5 - Prob. 1EQCh. 27.5 - Prob. 2EQCh. 27 - Which of the following features is common to...Ch. 27 - The bacterial phylum whose members typically...Ch. 27 - Gram-staining is a procedure that microbiologists...
Ch. 27 - Place the following steps in the correct order,...Ch. 27 - What ecological role do cyanobacteria play? a....Ch. 27 - Prob. 6TYCh. 27 - Prob. 7TYCh. 27 - Prob. 8TYCh. 27 - Prob. 9TYCh. 27 - Prob. 10TYCh. 27 - Prob. 1CQCh. 27 - Prob. 2CQCh. 27 - Prob. 3CQCh. 27 - Prob. 1COQCh. 27 - Prob. 2COQ
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- Plants cannot fix nitrogen, yet some plants do NOT need nitrogen from the soil. This is because a. of a symbiotic association with a bacterium that can fix nitrogen. b. these plants are the exceptions that can fix nitrogen. c. they have been infected by a parasitic virus that can fix nitrogen. d. they are able to obtain nitrogen from the air.arrow_forwardWhat organisms are in symbiotic relationships with plants and assist in obtaining nitrogen? Select one or more: O a. Statoliths b. Mycorrhizal Fungi c. Plasmodesmata d. Nitrogen Fixing Bacteria e. Gut Microbiotaarrow_forwardWhich of the following is NOT a unicelled organism? a. amoeba b. bacteria c. paramecium d. fungiarrow_forward
- Which of the following is not considered a microorganism?a. alga b. bacterium c. protozoan d. fleaarrow_forwardA team of scientists study a microorganism that lives in a wetland region. The organism is an obligate anaerobe, and it produces energy using the following reaction: CO2+4H4→CH4+2H2OCO2+4H4→CH4+2H2O In which kingdom does this organism most likely belong? A. Fungi B. Protista C. Archaebacteria D. Eubacteriaarrow_forwardHow do Gram-negative bacteria differ from Gram-positivebacteria?a. They are not pathogenic.b. Their peptidoglycan cell wall is thinner.c. Gram-negative bacteria cannot be Gram stained.d. They possess a single plasma membrane.e. Gram-negative bacteria do not photosynthesize.arrow_forward
- an agent that is bacteriostatic: a. kills algae b. kills bacteria c. inhibits the growth of fungi d. inhibits the growth of bacteriaarrow_forwardRecently, a microbe that is able to digest cellulose was discovered in a hot spring with an average temperature of 95°C. This microbe most likely belongs to which of the following groups? A. Archaea B. Proteobacteria C. Cyanobacteria D. Spirochetesarrow_forwardWhat part of an animal USUALLY do not have microbes? A. Teeth B.Genitalia C. Lungs D. Gastrointestinal tractarrow_forward
- Bioremediation includes _____. a. the use of prokaryotes that can fix nitrogen b. the use of prokaryotes to clean up pollutants c. the use of prokaryotes as natural fertilizers d. All of the abovearrow_forwardScientists found that the number of bacteria in a handful of soil has more than the number of people who have ever lived, the most important reason for that is? Select one: a. Bacteria are unicellular organisms b. Bacteria can make their food c. Bacteria can live in different environments d. Bacteria are invisible organisms e. Bacteria are pathogenicarrow_forwardFarmers often spray spores of which bacterial species that make a protein toxic only to some insect larvae? a. Bacillus thuringiensis b. Proteobacteria c. Agrobacterium tumefaciens d. Aspergillus niger e. Verticilliumarrow_forward
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Soil Ecology; Author: Prof. Mark Valen;https://www.youtube.com/watch?v=rByV6yvJ-Ho;License: Standard youtube license