Hydrothermal vents - Study guides, Class notes & Summaries
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CCRI micro exam 2 vito Questions And Answers With Verified Study Quiz
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Chlorine and iodine are classified as - halogens 
Obligate aerobes can only live - when oxygen is present 
Microorganism found thriving in a the permafrost region of the Arctic are - pychrophiles 
Facultative halophiles - tolerate an elevated salt concentration in the environment 
Most bacteria prefer to grow at which pH range? - Most bacteria prefer to grow at which pH 
range? 
The spectrophotometer is used in microbiology to - indirectly measure microbial growth 
Pyrimidine dimers are formed i...
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BISC 261 exam 1 || All Answers Are Correct 100%.
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how many different types of hydrothermal vents are there? and what colors correct answers 
 
what are the four major features for defining life? correct answers bioentergetics, metabolism, information flow, evolution 
 
origin of respiration (generating energy from electrically charged membranes) correct answers energy flow (bioentergetics) 
 
RNS world (ribozymes) probably enzymes too correct answers metabolism (building marcromolecules) 
 
origin of DNA and natural selection correct answers i...
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Biol 1023 Final Exam Questions and Answers 100% Pass
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Biol 1023 Final Exam Questions and 
 
Answers 100% Pass 
 
**What gases did Miller and Urey simulate in their experiment to demonstrate the formation of 
organic molecules in a primitive Earth atmosphere?** 
- A) Oxygen, nitrogen, carbon dioxide, water vapor 
- B) Water vapor, hydrogen, methane, ammonia 
- C) Carbon dioxide, methane, oxygen, nitrogen 
- D) Nitrogen, oxygen, hydrogen, carbon dioxide 
- Explanation: Option B is correct. Miller and Urey simulated water vapor, hydrogen, 
methane, a...
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BIO 117 Exam 2 Latest Update Already Passed
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BIO 117 Exam 2 Latest Update Already 
 
Passed 
 
sexual fungal reproduction 1. plasmogamy 
2. heterokaryotic mycelium 
3. karyogamy 
 
heterokaryotic mycelium cells contain 2 haploid nuclei from parent (n+n) 
 
karyogamy fusion of nuclei from parents (2n) 
 
three domains of life bacteria, archaea, eukarya 
 
methods of gene exchange for bacteria 1. transformation 
2. conjugation 
3. transduction 
 
transduction -viruses/bacteriophages help to pass genetic information 
 
-required initial virus...
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BISC 261 (micro) EXAM 1 || with 100% Errorless Answers.
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carl woese correct answers what scientist discovered the archael domain? 
 
16 sRNA gene correct answers what gene sequence did Woese use to determine that archaea were evolutionary different from bacteria? 
 
false correct answers T/F: archaea are only found in extreme environments 
 
Asgard archaea correct answers what group of archaea are eukaryotes most closely related to? 
 
a hydrothermal vent system correct answers what environment was the first Asgard archaeon discovered in? 
 
electrica...
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BISC 261 (micro) exam 1 || with 100% Verified Solutions.
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life began around ___ to ____ billion years ago on an _________ world with a thick, ____________ enriched atmosphere correct answers 3.8 to 4.0, anoxic, hydrocarbon 
 
anoxic correct answers without oxygen 
 
The alkaline hydrothermal vent hypothesis posits that life emerged at what ? correct answers the interface of alkaline H2 enriched fluids from unique hydrothermal vent systems and acidic CO2 enriched ocean waters 
 
the alkaline hydrothermal vents naturally form _____________ gradients that...
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Biology 1023 Final Exam Questions and Answers Graded A+
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Biology 1023 Final Exam Questions and 
 
Answers Graded A+ 
 
Which environmental conditions are typically found near or within the hydrothermal vents of 
Lost City? 
- A) Intense heat 
- B) High pressure 
- C) Basic pH levels 
- D) Anaerobic conditions 
- Explanation: All of the above options are correct. These conditions are commonly 
observed in habitats near or within hydrothermal vents. 
 
What gases did Miller and Urey simulate to demonstrate the formation of organic molecules in a 
primi...
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Bis 2C, Pre-Lab 2 (Graded A+)
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Bis 2C, Pre-Lab #2 
Bacteria and Archaea are often collectively referred to as prokaryotes because they lack a 
nucleus (pro=before, karyon=nucleus). But, as you can see from figure 2.1, they are not each 
other’s closest relatives. Because bacteria and archaea are so diverse, they can be difficult to 
characterize. However, when compared to eukaryotes, they have significant differences in their 
general biology including, reproduction, organization of genetic material, and a lack of 
membrane...
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Microbiology wgu part 2 questions and answers
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What is a characteristic of rhizospheres? 
a. The rhizosphere is where microbes that survive well in extremely acidic conditions 
reside. - Microbes that survive in extremely acidic conditions are called extremophiles. 
b. The rhizosphere is where microbes that survive well on humans reside. - Microbes 
that survive on the human body are part of the human microbiome. 
c. The rhizosphere is where microbes that survive well in the cold reside. - Microbes 
that survive well in the cold are psychrop...
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Microbiology wgu part 2 questions and answers
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What is a characteristic of rhizospheres? 
a. The rhizosphere is where microbes that survive well in extremely acidic conditions 
reside. - Microbes that survive in extremely acidic conditions are called extremophiles. 
b. The rhizosphere is where microbes that survive well on humans reside. - Microbes 
that survive on the human body are part of the human microbiome. 
c. The rhizosphere is where microbes that survive well in the cold reside. - Microbes 
that survive well in the cold are psychrop...
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