Q: 2. Which of the following infectious agents is correctly defined as a viral pollutant? A. the human…
A: There are many sources of pollution. Viral pollutants are biological pollutants in which viruses act…
Q: The number of microbes needed to cause illness in the host A. the disease threshold B. Minimum…
A: Disease threshold refers to the condition of the disease after which there is requirement for proper…
Q: Well-water gets contaminated by farm animals, and the water causes gastroenteritis in those that…
A: Well water gets contaminated by farm animals and the use of this water causes gastroenteritis.
Q: A disadvantage of using UV light to control microbes is: '. a. it produces irritable ozone b. it has…
A: UV rays are ultraviolet rays. These rays produce thymine dimers and disrupt DNA.
Q: Select the statement which explains best parasitism.(a) One organism is benefited.(b) Both the…
A: INTRODUCTION: Parasitism is a symbiotic relationship between two organisms, where one organism lives…
Q: which of the following is not a way that normal microbial prevent growth of competing microbes? a.…
A: Microbes are always surrounded by different strains of bacteria and other microbial organisms. These…
Q: Plants cannot fix nitrogen, yet some plants do NOT need nitrogen from the soil. This is because a.…
A: Photosynthesis is one of the crucial metabolic processes shown by the plants. The light energy from…
Q: Which statement about Yersinia pestis is false?a) Conditions inside human phagocytes activate…
A: Yersinia pestis is a non-motile, rod-shaped, Gram-negative bacterium that do not consists of spores.…
Q: When bacteria causes the death of most or all of the cells in an organ or tissue due to disease,…
A:
Q: What is it about clams that make them especially likelysources of human infection?(a) They have…
A: Answer is d.) they are filter feeders, obtaining food by filtering water and extracting microbes.
Q: How could you prove that an epidemic of a given infectious disease was occurring?
A: A disease is a state of unhealthiness of the physical body, mind and social interaction. A disease…
Q: A term to describe physical treatments that kill microbes on items or surfaces would be…
A: Microbes are microorganisms that make up a large fraction of the atmosphere. They are present…
Q: A pathogen would most accurately be described as aa. parasite.b. commensal.c. saprobe.d. symbiont.
A: Step 1 The disease is a disorder or deranged functioning of the body that results from an infection,…
Q: Choose the best below ? Which of the following best describes the term microbiota? a. The microbes…
A: The human body's largest population of microorganisms resides in the intestine and is collectively…
Q: a. Why is it unlikely that diseases such as tetanus and botulism willever be completely…
A: Since we only answer 1 question in case of multiple question, we’ll answer the first question as the…
Q: A fungi that improves the fight against PTB was isolated from the fungus-infected ___: a. chickens…
A: Answer: Introduction: Pulmonary TB (PTB) is a bacterial contamination of the lungs which is leading…
Q: An infectious dose of several million cells in enteric infections seems like a lot. a. In terms of…
A: Enteric bacteria are organisms that colonize the gut. But there are several pathogenic enteric…
Q: Microbial pathogenicity relates to A) O how a microbe overcomes host defenses B) O how a microbe…
A: Introduction: Microbe refers to single-celled organisms. They are minute in size and cannot be…
Q: Choose the combination of answers that most accurately completes the statement.A/an…
A: Correct answer is Asymptomatic carrier.
Q: Which one(s) is/are more harmful to the host and why? A) Antifungal agents B) antiprotozoal agents…
A: Ani fungal drugs are the most harmful to human body even more than the anti protozoal agents and the…
Q: Which of the following effects is/are caused by formation of aninfectious biofilm?a. disseminated…
A: A typical misinterpretation of microbial living is that microscopic organisms exist as individual…
Q: Bacteria living in a human mouth exhibit a symbiotic relationship with you, their host. Remember…
A: Symbiosis is a type of species interaction in which two species interact with each other in order to…
Q: The disease histoplasmosisa) is caused by an encapsulated bacterium.b) is contracted by inhaling…
A: Histoplasmosis is an infection caused by Histoplasma capsulatum. It is a true fungal pathogen and…
Q: Normal flora may cause opportunistic infections when:(a) They are continually nourished by the…
A: Normal flora is those microorganisms that reside in the human body and do not normally cause…
Q: An infectious disease process starts when a pathogen is transmitted from a "source" to a susceptible…
A: The interaction between any host and pathogen is commonly known as disease. infectious disease is…
Q: An infectious disease is a disease that is caused when a pathogen is passed from one organism to…
A: An infectious disease is a disease that is caused when a pathogen is passed from one organism to…
Q: Which of the following statements DOES NOT describe nitrogen fixing bacteria? A. Can be found only…
A: Nitrogen-fixing bacteria convert atmospheric nitrogen into organic nitrogen. Option C is not the…
Q: The best descriptive term for the resident microbes isa. commensals b. parasites c. pathogens d.…
A: Microbes are tiny organisms which we can not see only by eyes, we need instruments like microscope…
Q: The LPS layer in gram-negative cell walls releases ___________ thatcause _______________ .a.…
A: The gram-negative cell wall is composed of a thin, inner layer of peptidoglycan and an outer…
Q: A decubitus ulcer (bedsore) is an example of: A. Molecular death B. Necrobiosis C.…
A: De 1, Decubitus ulcer is characterized by the pressure necrosis occur in a area of body subjected…
Q: Scientific evidence suggests that cells evolved as symbiotic relationships between bacteria (or…
A: Individuals of two (or more) distinct species have a close ecological interaction known as…
Q: We are outnumbered by the bacteria in our colon. Why don't they typically make us sick? a) They…
A: The human microbiome helps to maintain the intestine linings and prevents the growth of pathogenic…
Q: Foodborne pathogens often require the presence of a large number of microbes before an active…
A: Answer: Introduction: Sickness or infection occurred due to food contamination by different…
Q: The collection of bacteria, archaea, and eukaryotic microbes that normally inhabit the human body…
A: Opportunistic pathogens A group of microorganisms that do not usually infect healthy hosts but…
Q: Which of the following statement about normal flora is INCORRECT? Question 3 options: A On…
A: Microbiology is the branch of science which deals with the study of microorganisms and their effects…
Q: A. How many people a year die due to insecticide misuse and exposure? B. What does Bt stand for? C.…
A: Insecticide ----- Poisoning by insecticide , pesticides has been a severe public health problems…
Q: When can you say that a microbe is pathogenic and what are/have something in them that can give them…
A: Many of the microorganisms are pathogenic, that is they can cause diseases in our body. The common…
Q: In the Middle Ages, during massive plague epidemic, one of the control measures instituted was the…
A: During the late Middle Ages and early Renaissance (1350-1450) the bubonic plague, also called the…
Q: Bacteria having fimbriae has the advantage over one that lacks fimbriae because: a. It can be…
A: Cell surface appendages are tubular or fibrous protein structures found on the surface of bacterial…
Q: The term "Microbial antagonism" describes the process by which: O A) Opportunistic pathogens cause…
A: Antibiotics are the medicines which are used to cure infections which are caused by bacteria. These…
Q: A young Honduran female patient presented with a huge cutaneous ulcer involving the right shoulder.…
A: Cutaneous(Skin) ulcers are open sores on the skin mainly due to poor blood flow,pressure or any…
Q: Bacteria perform the following ecological roles. Which roletypically does not involve symbiosis?(A)…
A: Symbiosis refers to relationship between two different species, in which at least one species is…
Q: Microbes that have recently become pathogenic cause______________diseases. A. acute B.…
A: A microorganism, sometimes known as a microbe, is a tiny organism that can live as an individual…
Q: How will the following factors contribute to the ability of bacteria to invade the host? A.…
A: Pathogens are the organisms that cause diseases.
Q: Which of the following among A-D is false concerning your microbiome? A) O it represents a type of…
A: Alzheimer’s disease (AD) is a neurodegenerative disease that causes memory loss and language…
A(n) _______ organism is part of the normal microbial flora of the host
- A. Acquired
- B. Symbiotic
- C. Commensal
- D. Secondary
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- Mycoplasmas attack the __________ of host cells.a. nucleus b. cell walls c. ribosomes d. cell membranesWhy antibacterial drugs are ineffective against: A. Fungal Infections B. Viral infections C. Helminthic worm infectionsMatch the following terms with their respective definition: _____1. Carrier a. Insects that transmit infection _____2. Fomite b. Presence of bacteria in the blood _____3. Vector c. Person harboring the organism without signs and symptoms of the disease _____4. Vehicle d. Hospital-acquired infection _____5. Septicemia e. Infection confined to a limited area _____6. Fulminant infection f. Inanimate object which can carry microorganisms _____7. Nosocomial infection g. Multiplying bacteria in the bloodstream _____8. Local infection h. Biological substances that can carry organism _____9. Bacteremia i. Presence of toxin in the bloodstream _____10. Toxemia j. Infection that always leads to death.
- A(n)__________- infection is acquired through exposure in a hospitalsetting.a. subclinical b. focal c. HAI (nosocomial) d. secondaryWhen microorganisms colonizing the wound and multiply excessively or invade tissue is called a. Wound infection b. Wound hemorrhaging c. Wound exudate d. DehiscenceThe disease from the list below which has a bacterial etiology is: A. Strep throat B. Asthma C. influenza
- latrogenic infections are a. Caused by a healthcare provider b. Non-contagious c. Caused by insects d. Primary infections.Many clostridial diseases require a/an ____________- environment for theirdevelopment.a. living tissue b. anaerobic c. aerobic d. low pHThe number of microbes needed to cause illness in the host A. the disease threshold B. Minimum illness dose C. Infectious dose D. Minimum concentration
- Normal resident microbes are absent from thea. pharynx b. lungs c. intestine d. hair folliclesWhich of the following describes "incubation period"? a. It is the time interval between entry of an infectious agent into the body and the appearence of the first symptoms and/or signs of the disease b. It is the time after recovery when a person can still harbor the infection c. It is the time interval through which an infected person is able to transmit the infectious agent to others d. It is the time interval between the onset of primary and secondary casesKeeping your food covered, especially outdoors, when it is not actually being eaten is a way to prevent contracting an illness through the ____route of infection. a. biological vector b. mechanical vector c. parenteral