BIO 250 (BIO250)
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BIO 250 Microbiology: Final Exam Questions and Answers Graded A+ & BIO 250 Microbiology Quiz 4 | Questions With Correct Answers 2024-2025 (Latest Update Graded A+)
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BIO 250 Microbiology: Final Exam Questions and Answers Graded A+ & BIO 250 Microbiology Quiz 4 | Questions With Correct Answers 2024-2025 (Latest Update Graded A+)

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BIO 250 FINAL EXAM (MICROBIOLOGY ) | 60 QUESTIONS AND 100% CORRECT ANSWERS LATEST 2024 - STRAIGHTERLINE
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BIO 250 FINAL EXAM (MICROBIOLOGY ) | 60 QUESTIONS AND 100% CORRECT ANSWERS LATEST 2024 - STRAIGHTERLINE
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Bio 250 lab quiz 1 Questions With Complete Solutions
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Bio safety levels (BSL) measure what? correct answer: an organisms controllability, infectivity, virulence, pathogenicity, antibiotic resistance, vaccine, treatment, mortality. 
 
BSL 1 correct answer: does not normally cause disease in people 
 
BSL 2 correct answer: Associated with disease 
 
BSL 3 correct answer: indigenous/exotic agents that may have serious or lethal consequences and with potential for aerosol transmission 
 
BSL 4 correct answer: dangerous/exotic agents of a life-thre...
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Bio 250 straighterline test 1 prep Questions With Complete Solutions
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Bio 250 straighterline test 1 prep Questions With Complete Solutions
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Straighterline Micro 250 final prep Questions With Solutions
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Straighterline Micro 250 final prep Questions With Solutions 
Which class of eukaryotic microorganisms can be subdivided into groups such as Mastigophora, Sarcodina, Ciliophora, and Apicomplexa? 
 
A. Helminths 
 
B. Algae 
 
C. Protozoa 
 
D. Fungi - ANS Protozoa 
 
Genetic material can be excised from one chromosome and directly integrated into another via 
 
A. conjugation. 
 
B. transformation. 
 
C. transduction. 
 
D. transposons. - ANS transposons. 
 
Which immune cell secretes numero...
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BIO 250 Microbiology Midterm Exam 180 Questions and Answers (Graded A+ 2023) Straighter line
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1. An irregular cluster of spherical cells would be called a/an 
a. Palisades 
b. Sarcina 
c. Staphylococcus 
d. Streptococcus 
e. Spirilla 
2. The study of the immune response to infection caused by microorganisms is 
a. Hypersensitivity 
b. Epidemiology 
c. Immunology 
d. Morbidity 
e. Geomicrobiology 
3. What is the maximum number of electrons in the first energy shell of an 
atom? a. 2 
b. 4 
c. 8 
d. 18 
e. 32 
4. The movement of molecules from an area of high concentration to an area of 
l...
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BIO 250 Straighterling Final Exam (Microbiology) 60 Questions With Correct Answers Latest Update 2023 Graded A+
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1-What microbial process was responsible for changing Earth’s atmosphere from 
one without oxygen to one with oxygen? 
Select one: 
a. anaerobic respiration 
b. decomposition 
c. oxygenic photosynthesis 
d. temperature regulation 
2-In the nitrogen cycle, which of the following phases involves the release of nitrogen 
as 
into the Earth’s atmosphere? 
Select one: 
a. ammonification 
b. denitrification 
c. nitrification 
d. nitrogen fixation 
3-Farmers commonly inoculate legume crops with Rhi...
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BIO 250 Micro Test 2 Exam Questions with Correct Answers Latest Graded A+ Straighterline
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Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that inactivated toxins can induce 
the synthesis of antitoxins in the blood of rabbits. These antitoxins (antibodies) are the basis of 
Select one: 
a. humoral immunity. Correct 
b. cell-mediated immunity. 
c. antibiotic immunity. 
d. phagocyte-mediated immunity. 
Feedback 
The correct answer is: humoral immunity. 
Question 2 
Correct 
4.50 points out of 4.50 
Not flaggedFlag question 
Question text 
Whose work on spontaneous gen...
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BIO 250 Microbiology Final Exam Questions With Correct Answers Latest Update 2023/2024 Graded A+
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1. In the nitrogen cycle, which of the following steps involves removal of nitrogen from the 
atmosphere by bacteria? 
a. Ammonification 
b. Denitrification 
c. Nitrification 
d. Nitrogen fixation 
Answer is d. In nitrogen fixation, nitrogen is removed from the atmosphere by 
nitrogen-fixing bacteria and converted to ammonia 
2. If enough H+ 
ions are added to pure water to raise the H+ concentration of the solution to 
ten times higher than the original concentration, what is the resulting OH- ...
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BIO 250 Final Exam Questions With 100% Correct Answers Graded A+ 2023
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1. What microbial process was responsible for changing Earth's atmosphere from one without 
oxygen to one with oxygen? 
 Oxygenic photosynthesis 
2. In the nitrogen cycle, which of the following phases involves the release of Nitrogen into the 
Earth's atmosphere? 
Denitrification 
3. Farmers commonly inoculate legume crops with Rhizobium bacteria for which of the following 
purposes? 
The two form a symbiotic relationship increasing the plant's access to nitrogen. 
4. In the secondary ...
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