Normal microbiota:  A. are only found in the digestive tract. B. protect us from disease by crowding out "bad" invading bacteria.   C.are only found on small select parts of our bodies.   D.always cause disease when growing on our bodies.   E.play no role in our general health.

Q: E. coli can cause various infections and food poisoning. How can people protect themselves from…

A: Probiotics are the good, live bacteria and yeast that are supplied through drink to humans. It helps…

Q: What is the relationship between normal flora Escherichia coli (E. coli) and STEC?   A When normal…

A: Answer is :. Normal flora E. Coli do not make shiga toxin, but STEC are E. coli that do make shiga…

Q: How does HIV (human immunodeficiency virus) lead to AIDS (acquired immune deficiency syndrome)/lead…

A: Human immunodeficiency viruses causes AIDS.This is the condition where gradual failure of immune…

Q: When Pathogens destroy Normal flora, it can lead to: a. Large inoculum b. Physical destruction of…

A: The human intestine contain some natural microorganisms that do not harm the physiology and health…

Q: When the CDC informed blood bank leaders about the danger of HIV spread through HIV infected blood:…

A: The HIV ( human immunodeficiency virus) causes AIDS ( Acquired immunodeficiency syndrome) and this…

Q: The use of multiple drugs in HAART to treat AIDS has a. completely removed the virus from infected…

A: The disease that is caused by the human immunodeficiency virus (HIV) is known as the acquired immune…

Q: Drug resistance occurs: - when antibiotics are used incorrectly - against antibiotics and not…

A: Antibiotics are the drugs that are used to inhibit the growth of microbes or kill them.

Q: Which of the following is True?a. The human stomach maintains a very high pH.b. Gastric glands in…

A: Stomach is a sac like organ. It is located between the esophagus and the small intestine. It stores,…

Q: The virus known as H1N1 (swine flu)

A: Swine flu is a viral disease transmitted by H1N1 influenza A virus that transmits through…

Q: . Explain what is meant by the term microbiota

A: The wide variety of microorganisms which live in a particular environment is called microbiota. It…

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: An antibiotic which was effective 20 years ago against a specific type of bacterial infection no…

A: The chemical or biological molecules that used for killing or preventing the growth of bacteria are…

Q: Looking at the composition of young children's gut microbiomes and how it changes under various…

A: Gut microbiome play a very important role in maintenance of a person's health. These microorganisms…

Q: Examine whether the statement, "The microbiomes from healthy humans are all very similar", is true…

A: Microbiomes are collective genomes of the different species of the human microbiota. More than 5x106…

Q: There are estimates that the microorganisms present in the human body outnumber the cells of the…

A: Answer:- Option D seems to be the correct choice. Neutrophils activate to act against other…

Q: 1. In your own understanding, why is it that the study of Basic Life Support is very important?…

A: 1) Basic Life Support, or BLS, for the most part alludes to the kind of care that people on call,…

Q: A principle of biology is that living organisms interact withtheir environment. Such interactions…

A: The interaction affects the pair of organisms living together in the community have on each other.…

Q: One reason that pathogenic microorganisms have an advantage in the host they infect is because they…

A: The small, microscopic, and mostly unicellular organisms are called microorganisms. They are of…

Q: Arthropods are a major area of human health. This is because they can do which of the following

A: Arthopods are the organisms of animal kingdom characterized by the presence of jointed legs.

Q: You have a friend with a cold. He went to his doctor and was annoyed that his doctor would not…

A: Antibiotics are certain substances secreted by microorganism that acts against another set of…

Q: Bacterial capsules a. kill phagocytes b. prevent engulfment by phagocytes  c. prevent the…

A: The capsule is referred to as a pathogenicity since it increases bacteria's potential to produce…

Q: Which of the following pairs id mismatched?   A. Virologist – studies human immunodeficiency virus…

A: -Virologists study the viruses that affect humans, plants , animals etc. -Microbial ecologist study…

Q: Select all that apply. Which of the following is a potential cause of chronic inflammation?…

A: A prolonged and dysregulated immune response that lasts for a long time-often months or even years…

Q: Match the following:   ___ etiological agent                       A.  signs etc that indicate…

A: ___etiological agent                               D.   organism    (etiological agents are the…

Q: Which of the following refer/s to viruses? A. They are disease-causing. B. They contain DNA or…

A: Introduction: Viruses are non-cellular microscopic particles that can replicate inside the living…

Q: Do you expect that an infectious pathogen suchas the bacterium Staphylococcus aureus or theHIV virus…

A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…

Q: In polymicrobial pulmonary infection, Stenotrophomonas maltophilia secretes a compound which…

A: The question is asking us to identify the biological process that is being described. In this…

Q: a cytokint storm is an overproduction of immune cells and their activating compounds- cytokines can…

A: Cytokine storm or hypercytokinemia is the physiological response of an animal's innate immunity…

Q: How has past attempts and could future attempts to make a more pleasant and "sterile" world for…

A: *Genetic modification takes place at therapeutic where the illness or deficiency in a person is…

Q: uction and 1.Lytic-"light- 1. - Virus binds to receptors on the cell membrane 2. -Viral DNA takes…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The working part of the muscle is called   A. Head   B. Belly   C. Tendon   D. Aponeurosis What are…

A: Introduction: A muscle is made up of a group of muscular tissues which contract together to produce…

Q: When virus enters into our body, many cells acquire antiviral state due to: a Acquiring resistance…

A: When virus enters our body many cells acquire antiviral state due to INTERFERON PRODUCTION (e)

Q: Unlike inflammation, fever is a(n). immune response. A. cellular B. localized C. adaptive D.…

A: Immune system contains a group of antibodies, phagocytes and other barriers which protect the body…

Q: 1. What is the mechanism of action of penicillin? 2. Cells treated with penicillin do not die…

A: Penicillin inhibits the cell wall of bacteria by blocking transpeptidase after binding to…

Q: Epidemiological studies show that the health problems of high-income nations differ greatly from…

A: Epidemiology deals with the occurrence, prevalence, and possible control of the diseases. A…

Q: A broad spectrum antibiotic is undesirable because it A. might only cure two diseases at once B:…

A: Broad-spectrum antibiotics are medications that can kill a wide range of bacteria, including both…

Q: There are estimates that the microorganisms present in the human body outnumber the cells of the…

A: Microorganisms can be found in nearly any portion of the human body, counting the eyes, the…

Q: uperbugs are a relative new concern of physicians who treat infectious disease. Research and…

A: superbugs means some highly resistant and infectious strains of bacteria, viruses, parasites and…

Q: The microbiomes from healthy humans are allvery similar. Explain why or why not.

A: The human microbiome as the term suggests refers to the biological community that is known to reside…

Q: . Why is the possibility that all antibiotics may become useless such a serious concern?

A: ANTIBIOTICS:- They used to treat infections caused by bacteria, so they are anti-bacterial and…

Q: Explain why some pathogens evolve greater levels of virulence under the Trade-off hypothesis. What…

A: According to the trade-off theory, the cost to the pathogen of utilising the host's resources for…

Q: The antelopes from Africa were delivered to the Kiev's zoo. The protozoans Trypanosoma gambiense…

A: Trypanosoma gambiense causes an insect borne disease 'Trypanosomiasis' in both humans and animals.…

Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.