Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 20, Problem 11SQ
_____ in the stomach of a cow release methane.
- a. Bacteria
- b. Archaea
- c. Aerobes
- d. Viruses
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Chapter 20 Solutions
Biology: The Unity and Diversity of Life (Looseleaf)
Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - The genome of ___ can be either RNA or DNA. a. a...Ch. 20 - The capsid of a virion consists of ___ . a. DNA b....Ch. 20 - Bacteriophages kill their host quickly by ______ ....Ch. 20 - The genetic material of HIV (a retrovirus) is...Ch. 20 - Prob. 5SQCh. 20 - Prob. 6SQCh. 20 - Prob. 7SQ
Ch. 20 - Bacteria that serve as decomposers are ___ . a....Ch. 20 - Prob. 9SQCh. 20 - Formation of a(n) ___ allows some soil bacteria to...Ch. 20 - _____ in the stomach of a cow release methane. a....Ch. 20 - A plasmid is a circle of ___ . a. RNA b. DNA c....Ch. 20 - Prob. 13SQCh. 20 - Prob. 14SQCh. 20 - Prob. 15SQCh. 20 - Prob. 1CTCh. 20 - Adenoviruses that cause colds do not have a lipid...Ch. 20 - The antibiotic penicillin acts by interfering with...Ch. 20 - Raw red alga of the genus Porphyra is part of a...
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- Chemoautotrophs can survive on ____________ alone.a. minerals b. CO2 c. minerals and CO2 d. methanearrow_forwardCarbon is present in the atmosphere as ________. a. carbon dioxide b. carbonate ion c. carbon dust d. carbon monoxidearrow_forwardWhich of the following describes a bacterium that lives in the human intestine and causes disease? A. commensalist B. decomposer C. gut mutualism D. symbiotic pathogenarrow_forward
- During the ____________________ phase of microbial population growth, the rate of cell division begins to slow down or division stops entirely. a. stationary b. lag c. death d. exponental growtharrow_forwardThe term culture refers to the _____________ growth of microorganisms in_________ . a. rapid, an incubator b. macroscopic, media c. microscopic, the body d. artificial, coloniesarrow_forwardPlants 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_forward
- After a virus has entered a cell and released its nucleic acid… A. It begins feeding on cellular components B. It immediately destroys the cell C. It enters mitochondria where it takes over ATP production D. The infected cell produces new viruses.arrow_forwardWhich type of UV radiation does the ozone block the most of? a. UV-B radiation b. UV-A radiation c. All UV radiation d. UV-C radiationarrow_forwardThe average time a molecule spends in its reservoir is known as ________. a. residence time b. restriction time c. resilience time d. storage timearrow_forward
- We learned an ironic twist in the film called "The Other Inconvenient Truth." It was that a. agriculture creates more pollution than other sources, but we have to increase farming for the growing population b. that nitrogen in the soil is significant pollution, but if we don't use these fertilizers we will not have enough food c. That methane is produced by animals and by growing rice. So becoming vegetarian won't clear methane from the atmosphere. d. agriculture uses 70% of fresh water mined , causing a salt water pollution tooarrow_forwardThese bacteria ferment sugars, produce lactate, and are used for some food production. a. Bacillus b. spirochetes c. cyanobacteria d. Agrobacterium e. Lactobacillusarrow_forwardChoose the letter of the correct answer: 1.) The main causative agent of ozone depletion is _______ a. mercury b. lead c. radioactive wastes d. nuclear power plant 2.) Ozone is the protection of living organisms against _______ a. ozone b. oxygen gas c. stratosphere d. none of these 3.) Forest type present in the Philippines ______ a. CFCs b. NO2 c. SO2 d.SO3arrow_forward
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