Why don’t common methods of water treatment reliably excludeCryptosporidium from domestic water supplies?

Q: Why did we soak our root nodules in bleach or alcohol before isolating rhizobia from them?

A: INTRODUCTION Rhizobia : It is a nitrogen fixing bacteria seen in plants.

Q: How do psychrotrophs help with the spoilage of refrigerated foods.

A: Psychotrophs are cold-tolerant bacteria or archae that have the ability to grow at low temperatures,…

Q: What makes Bacillus particularly difficult to kill either by physical or chemical means?

A: Bacillus are aerobic bacteria that are road shaped; they are gram positive and with passing agent…

Q: A household cleanser is labeled germicidal. Explain what thismeans to you

A: once a household preparation is labeled bactericidal, this implies that the product is distructive…

Q: Explain why C. tetani can be cultivated from wounds in the absence of tetanus.

A: Clostridium tetani is a causative organism for disease called tetanus. These are anaerobic organisms…

Q: Microorganism: Dinophysis sp.

A:

Q: What features of a premise water distribution system mightencourage the growth of Legionella?…

A: Legionella is the bacterium that causes Legionnaries disease. It is the other form of pneumonia. It…

Q: What is the most likely reason that Korarchaeum cryptofilum hasbeen difficult to isolate in pure…

A: Korarchaeum cryptofilum is a species that belongs to the phylum Korarchaeota, or Xenarchaeota of the…

Q: What are other organisms related to Brocadia anammoxidan?

A: Brocadia anammoxidans are bacteria belonging to the phylum Planctomycetes. These bacteria are…

Q: List 5 methods used to remove Cryptospordium from drinking water.

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: Microorganism: Dinophysis sp.

A:

Q: Which of the following is associated with pityriasis? Select one: O a. Microsporum b. Malassezia…

A: Malassezia furfur : Also knowna as Tinea versicolor . It cause superficial skin infection in 90% of…

Q: What characteristic of Mycoplasma species separates them from other bacteria?

A: The small, microscopic, and unicellular organisms are called microorganisms. There are many…

Q: Why can it be said that N. equitans is both a carbon and anenergy parasite?

A: Introduction: Nanoarchaeum equitans is a hyperthermophilic obligate symbiont that grows in…

Q: How can you use the unique characteristics to produce a growth medium that is both selective and…

A: Listeria monocytogenes is a pathogenic disease-causing microorganism that is responsible for…

Q: Why is chloramphenicol added to the fungal culture?

A: The most immediate and normally indisputable methods for building up the determination of a fungi…

Q: A product that contains benzovindiflupyr and azoxystrobin will kill which microorganism? O A.…

A: The kingdom in biology can be outlined as the system that is utilized by biologists for the…

Q: What is the term for the protective structure that Bacillus and  Clostridium genera can produce when…

A: Endospores are reproductive structures produce by bacteria.

Q: What are the mainprophylactic measures againstmalaria?

A: Malaria is a tropical disease which is transmitted in humans by the infected anopheles’ mosquitoes.…

Q: Describe the properties that enhance the resistance of endospores to the processes that usually kill…

A: The typical living cell might be referred to as a vegetative cell. With the exception of a few…

Q: Explain mycorrhiza.

A: Symbiosis is any type of a close and long-term biological interaction between two different…

Q: Cryptosporidium is commonly found in surface water and causes gastroenteritis if consumed. What is…

A: Parasites are creatures that live in or on a host and rely on it for food, housing, and…

Q: Example of psychrotrophic bacteria includes:

A: Psychrotrophic bacteria are those bacteria which can grows at 7°C although their optimal growth…

Q: What are the major mechanisms through which fungicause disease?

A: The vast majority of the 500 types of organisms that can cause disease in humans chiefly in…

Q: What is the sign of ethylene poisoning in a callus culture

A: When the tissues on culture create an unorganized mass of the callus without regular form, it is…

Q: Where is Plasmodium falciparum found?

A: Malaria is a disease in humans that is caused by protozoa parasites. The bite of female anopheles…

Q: What is the Gram reaction and oxygen requirement of Sporothrix schenckii?

A: Sporothrix schenckii is considered a thermally dimorphic fungus with a ubiquitous distribution. It…

Q: How might Campylobacter contamination of food productionanimals be controlled?

A: Campylobacter infection is caused by Campylobacter bacteria. It is the most common bacterial cause…

Q: What key role does Acidithiobacillus ferrooxidans play in thecopper leaching process?

A: Bioleaching is the process that involves the action of microbes to extract specific metals from…

Q: Define Mycorrhiza.

A: Members of certain species exhibit a positive association with each other. These organisms live…

Q: Why do you suppose that Clostridium species are major causes of spoilage of canned foods?

A: "Microbiology" is a hugely important field in both basic and applied research. New and fascinating…

Q: Gossypium spp. are the source of which of the following? O wool O jute O rayon cotton O linen

A: Various types of fibers are utilized for making clothing. These fibers can be obtained from plant or…

Q: List three reasons Bacillus spp. are of practical importance

A: Bacillus subtilis is a type of aerobic and Gram-positive bacteria which has been widely used in many…

Q: Why is Entamoeba histolytica often termed as clinically significant amoebic parasite

A: The adult trophic form of Entamoeba histolytica is called trophozoite. it inhabits the anterior part…

Q: Contrast the motility of spirochetes with thatof spirilla.

A: Spirilla are a group of gram negative bacteria with rigid helical cell structure. They are…

Q: How Bacillus thurengiensis is used commercially?

A: Bacillus thurengiensis is a soil bacterium. It produces crystal protein(cry protein).…

Q: Explain the occasional presence of Cryptosporidium in domesticwater sources.

A: Cryptosporidium is a microscopic parasite that causes the diarrheal disease cryptosporidiosis.

Q: Dole Diversified North America, Inc. Announces Recall of Dole™ Fresh Blueberries for Potential…

A: Food contamination is described as foods that have deteriorated or been contaminated as a result of…

Q: How do you isolate cryptosporidium from sewages and the best technique used?

A: Cryptosporidium refers to the genus that includes apicomplexan parasitic alveolates that can cause…

Q: Why are psychrotrophic bacteria of concern to those in the food-service industry?

A: Psychotrophs are mesophiles. They can grow at a low temperature such as 4℃. And, their optimal…

Q: What two microbes form a partnership in the lichen symbiosis?What are the benefits to both partners?

A: Animal relationships are the animal species associated to live with other animal species. The…

Q: What parasite is commonly mistaken as Entamoeba histolytica and why? Why is Entamoeba histolytica…

A: Entamoeba histolytica is essentially an anaerobic parasitic amoebozoan, which comes under the genus…

Q: Why would a psychrophile not be a human pathogen?

A: Microbes are classified according to the temperature range at which they can grow. The development…

Q: How can Giardia and Cryptosporidium cysts be removed from a water supply?

A: The wastewater treatment plants are principally accountable for processing approximately 34 billion…

Q: Significance of psychrotrophs in the spoilage of refrigerated food?

A: Psychrotrophs are the kind of bacteria that can grow at less than 70 C, temperature, that can…

Q: Compare and contrast the physiology and ecology of Shewanella and Geobacter spp.

A: Introduction: Shewanella species are gram negative motile rods which are facultatively anaerobic…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.