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BIOL 2420 Exam 4 Questions and Answers 2025
Innate Immunity -Correct Answer Nonspecific defenses of the host. 
1st and 2nd lines of defense. 
 
Resistance -Correct Answer The ability of the body to ward off disease. 
 
Resistance Factors -Correct Answer Skin, stomach acid, and antimicrobial chemicals that protect the body from infections. 
 
Susceptibility -Correct Answer Lack of resistance and vulnerability to a disease. 
 
Adaptive Immunity -Correct Answer Specific defenses that mount a response against a very specific target. 
3rd line...
Exam (elaborations)
Biol 2420 Exam 4 Questions And 100% Correct Answers Updated For 2025/2026.
PopularInnate Immunity 
Nonspecific defenses of the host. 
1st and 2nd lines of defense. 
Resistance 
The ability of the body to ward off disease. 
Resistance Factors 
from infections. 
Susceptibility 
Adaptive Immunity 
target. 
3rd line of defense. 
Lymphocytes 
specific invader. 
First 
Skin, stomach acid, and antimicrobial chemicals that protect the body 
Lack of resistance and vulnerability to a disease. 
Specific defenses that mount a response against a...
Exam (elaborations)
BIOL 2420 Exam #1 Test Questions and Answers Rated A
NewBIOL 2420 Exam #1 Test Questions and Answers Rated A 
Microbes 
Benefits of Microogranisms 
minute living things that are too small to be seen with the 
unaided eye; include bacteria, fungi, protozoa, microscop- 
ic algae, and viruses 
basis of food chains in marine & freshwater environments; 
decomposers; important role in photosynthesis; digestion 
in human intestine; synthesis of Vitamin B and Vitamin K; 
synthesize food & alcohol 
Pathogenic disease producing 
Unicellular prokaryotic organis...
Exam (elaborations)
BIOL 2420 Exam 1 Test Questions and Answers Rated A
NewBIOL 2420 Exam 1 Test Questions and Answers Rated A 
Living organisms that are too small to see with the unaid- 
ed eye. Microorganisms 
Life internal environment. Regulates 
Life regulates environment. Internal 
Life regulates internal . Environment 
Life takes in and uses . Energy 
Life to environment. Responds 
Life responds to . Environment 
Life develops and maintains . Complex organization 
Life gives rise to . New cells 
Refers to a rapidly growing cell. Germ 
Observed cork (plant cells) ...
Exam (elaborations)
BIOL 2420 Exam 2 Test Questions and Answers Rated A
NewBIOL 2420 Exam 2 Test Questions and Answers Rated A 
Process by which chemical substances are acquired from 
the environment and used in cellular activities. 
Essential Nutrients Must be provided to an organism. 
Required in large quantities; play principal roles in cell 
Macronutrients structure and metabolism. 
Ex: proteins, carbohydrates, lipids 
Micronutrients aka "Trace Elements" 
Required
Exam (elaborations)
BIOL 2420 Exam 3 Test Questions and Answers Rated A
NewBIOL 2420 Exam 3 Test Questions and Answers Rated A 
Taxonomy The science of classifying microorganisms. 
Taxa General term for taxonomic categories. 
Taxonomy Provides universal names for organisms. 
Taxonomy Provides a reference for identifying organisms. 
Phylogeny The study of the evolutionary history of organisms. 
1.7 million Number of identified species of life on Earth. 
Domain which includes protists, fungi, animals, and 
plants. 
Bacteria Domain which includes prokaryotes, most with pe...
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BUNDLE FOR BIOL 2420 EXAMS with Questions and 100% Verified Answers
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Chapter 36 Obstetric and Gynecologic Emergencies (MOD 4) San 
Antonio College BIOL 2420 Questions with 100% Verified Answers 
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NewChapter 36 Obstetric and Gynecologic Emergencies (MOD 4) San 
Antonio College BIOL 2420 Questions with 100% Verified Answers 
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Chapter 35 Environmental Emergencies (MOD 5) San Antonio College 
BIOL 2420 Questions with 100% Verified Answers Latest Update
NewChapter 35 Environmental Emergencies (MOD 5) San Antonio College 
BIOL 2420 Questions with 100% Verified Answers Latest Update
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Chapter 33 Trauma to the Head, Neck, and Spine (MOD 5) San Antonio 
College BIOL 2420 Questions with 100% Verified Answers Latest Update
NewChapter 33 Trauma to the Head, Neck, and Spine (MOD 5) San Antonio 
College BIOL 2420 Questions with 100% Verified Answers Latest Update
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Chapter 32 Musculoskeletal Trauma (MOD 5) San Antonio College BIOL 
2420 Questions with 100% Verified Answers Latest Update 

NewChapter 32 Musculoskeletal Trauma (MOD 5) San Antonio College BIOL 
2420 Questions with 100% Verified Answers Latest Update
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Chapter 31 Chest and Abdominal Trauma (MOD 5) San Antonio College 
BIOL 2420 Questions with 100% Verified Answers Latest Update 

NewChapter 31 Chest and Abdominal Trauma (MOD 5) San Antonio College 
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Chapter 29 Bleeding and Shock (MOD 5) San Antonio College BIOL 2420 
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NewChapter 29 Bleeding and Shock (MOD 5) San Antonio College BIOL 2420 
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Chapter 27 Behavioral and Psychiatric Emergencies and Suicide (MOD 
4) San Antonio College BIOL 2420 Questions with 100% Verified 
Answers Latest Update
NewChapter 27 Behavioral and Psychiatric Emergencies and Suicide (MOD 
4) San Antonio College BIOL 2420 Questions with 100% Verified 
Answers Latest Update
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Chapter 26 Abdominal Emergencies (MOD 3) San Antonio College BIOL 
2420 Questions with 100% Verified Answers Latest Update
NewChapter 26 Abdominal Emergencies (MOD 3) San Antonio College BIOL 
2420 Questions with 100% Verified Answers Latest Update
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Chapter 25 Poisoning and Overdose Emergencies (MOD 3) San Antonio 
College BIOL 2420 Questions with 100% Verified Answers Latest Update
NewChapter 25 Poisoning and Overdose Emergencies (MOD 3) San Antonio 
College BIOL 2420 Questions with 100% Verified Answers Latest Update
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Chapter 22 Diabetic Emergencies and Altered Mental Status (MOD 3) 
San Antonio College BIOL 2420 Questions with 100% Verified Answers 
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NewChapter 22 Diabetic Emergencies and Altered Mental Status (MOD 3) 
San Antonio College BIOL 2420 Questions with 100% Verified Answers 
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Chapter 18 General Pharmacology (MOD 3) San Antonio College BIOL 
2420 Questions with 100% Verified Answers Latest Update 

NewChapter 18 General Pharmacology (MOD 3) San Antonio College BIOL 
2420 Questions with 100% Verified Answers Latest Update
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Chapter 41 EMS Response to Terrorism (MOD 5) San Antonio College 
BIOL 2420 Questions with 100% Verified Answers Latest Update
NewChapter 41 EMS Response to Terrorism (MOD 5) San Antonio College 
BIOL 2420 Questions with 100% Verified Answers Latest Update
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Chapter 40 Highway Safety and Vehicle Extrication (MOD 5) 
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NewChapter 40 Highway Safety and Vehicle Extrication (MOD 5) 
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Chapter 38 EMS Operations (MOD 5) San Antonio College BIOL 2420 
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NewChapter 38 EMS Operations (MOD 5) San Antonio College BIOL 2420 
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