Nitrogen ___________ A)is a growth-limiting nutrient for many organisms. B)is used to build proteins and carbohydrates. C)is extracted from the atmosphere by a few types of bacteria. D)Both A and C are correct. E)A, B, and C are correct.

Q: Give typing answer with explanation and conclusion to all parts  The 5-FU metabolite F-dUTP is…

A: The 5-FU metabolites F-dUTP and F-dUMP are compounds that are relevant to the synthesis of DNA and…

Q: Organisms which synthesise their own food are called: A) autotrophs B) heterotrophs C) auxotrophs D)…

A: An autotroph is a living being that can create its own food utilizing light, water, carbon dioxide,…

Q: The autotrophic mode of nutrition requires:a) Chlorophyllb) Sunlightc) Carbon – dioxide &…

A: Organisms need food for their growth and survival. There are 3 modes of nutrition- autotrophic…

Q: Nitrogen fixing bacteria is useful in growing which crop ________ A) Wheat B) Paddy C) Legume D)…

A: Nitrogen fixation is the process of converting nitrogen from the soil and to useful product ammonia…

Q: Which of these are known to host chemosynthetic communities? a) Hydrothermal vent O b) Hydrocarbon…

A: The food chain in our ecosystem depends on the primary producers as they are capable of harvesting…

Q: The annamox reaction

A: it is anaerobic ammonium oxidation in this reaction. oxidation ammonium to dinitrogen gas using…

Q: Why are there so many antibiotic-producing organisms in soils?

A: Soil is densely packed with microorganisms.

Q: Which of the following is not a matching pair?a) Potable water—presence of pathogensb) High BOD—high…

A: Filamentous bulking refers to the uncontrolled growth of filamentous bacteria. Primary treatment…

Q: Which of the following is an Abiotic factor? A) Plants B) Water C) Consumers D) Animals

A: The non-living physical and chemical factors that affect the living organisms and the ecosystem is…

Q: a) What is the consequence of discharging larger volumes of sewage that is untreated into a river?…

A: Introduction: Wastewater treatment has been used for a variety of purposes such as removing the…

Q: The reserve food material in algae is --------a) celluloseb) starchc) proteind) glycogen

A: The reserve food material is the stored food in the organism’s food storage organelle which comes…

Q: Clay may be categorized as: Group of answer choices a) A size fraction of the soil. b) A Textural…

A: Clay is a part of the soil that is used to grow crops. It may or may not be present on the topsoil.

Q: Zinc deficiency is more common in developing countries because: a) inhabitants usually eat a…

A: 1) In underdeveloped nations, micronutrient deficiencies, particularly zinc insufficiency, are…

Q: Why are there so many antibiotic-producing organisms in soils?Explain it

A: Antibiotics are secondary metabolites which are produce by the bacteria as a part of their natural…

Q: Odour, freshness and taste of food can be measured by using ________.a) Bio-Chips b) Bio-sensor c)…

A: Food technology deals with the production, processing, packaging, labeling, quality management,…

Q: The mode of nutrition in which particulate food is devoured is : A) holozoic B) holophytic C)…

A: Answer is A.) Holozoic.

Q: Which of the following symbiotic mutualisms involves a fungus and an alga. Mark only one oval. A)…

A: Mutualism : Mutualism is a type of ecological relationship between two or more species in which both…

Q: A selective media  a) inhibit the growth of certain bacteria while allowing others to grow b)…

A: An example of selective media includes- eosin methylene blue that is toxic to Gram-positive bacteria…

Q: A) What are the main reasons of food poisoning?

A: As per our guidelines, we are supposed to answer only one question. Kindly repost the other question…

Q: 21) The use of Penicillin and Bacteriocins are examples of: a) Toxin-mediated killing b) Viral…

A: Penicillin is a medicine used to treatment in some infection that present in wide range in the…

Q: Which of the following genera is used in bread, wine, and beer production?a) Lactobacillus…

A: ALCOHOL PRODUCTION:- Microbial production of one of the organic feedstock from plant substances such…

Q: Algal blooms are indicators of healthy nutrient cycles.     A) True   B) False 30. The increase in…

A: An algal bloom, also known as an algae bloom, occurs when the population of algae in freshwater or…

Q: The process in which all organisms and pathogens are destroyed is called ------.  a) Disinfection…

A: Microbes are responsible for various diseases in humans as well as animals.Microbes and pathogens…

Q: BOD correlates to A) O the amount of organic material in water B) O the level of photosynthetic…

A: Biological Oxygen Demand (BOD) represents the amount of oxygen consumed by bacteria and other…

Q: A) Explain in detail about landfill system

A: A) Landfill is an open region based on the highest point of the ground to arrange the trash. It is…

Q: Which process converts ammonium (NH4+ ) into nitrate (NO3− )?a) Nitrogen fixationb) Ammonificationc)…

A: Nitrite removal is even easier, with nitrite being oxidized by the enzyme nitrite oxidoreductase and…

Q: Microbes have their biggest impact in which step of wastewater treatment? A) O preliminary B) O…

A: Wastewater treatment as the term suggests is the treatment of the sewage water in order to eliminate…

Q: (i) Discuss the spoilage processes by determining THREE (3) potential intrinsic factors that are…

A: Meat is rich in protein, and fat, and is a very nutritious food. It is obtained from various sources…

Q: Which of the following could be an effect of an excess ofsewage running into a freshwater…

A: Due to the contamination of fresh water by sewage all of the above can takes place.

Q: Which micronutrient is added last during Parenteral Nutrition (PN) compounding as it shortens the…

A: In the context of compounding Parenteral Nutrition (PN), the addition of various micronutrients is a…

Q: School-based health programs are an example of ________ prevention. A) primary B) secondary C)…

A: Primary, secondary, tertiary, and quaternary prevention are the four primary categories into which…

Q: Which of the following is a nitrogenous waste product that is rarely the final product eliminated by…

A: Kidneys are the organs belong to excretory system in our body and play a major role in several other…

Q: a) What is the consequence of discharging larger volumes of sewage that is untreated into a river?…

A: INTRODUCTION Sewage is the waste that contains liquid and solid wastes produced by human activities…

Q: Which of the following statements is correct? A) Microorganisms are significant contributors to the…

A: Microbiology is the branch of science that deals with the study of microorganisms. Microorganisms…

Q: Your microorganism produce black color in peptone iron agar grown at 37 degrees Celcius…

A: Enzymes are the biological catalysts that have the ability to increase the rate of metabolic…

Q: Water pollutants includes..

A: Answer is option c.)Pathogens,chemicals and metals

Q: How else can we measure biomass? A) Rheometry B) Spectrophotometer C) Mass spectrometry

A: Introduction: Biomass (B) is  how much amount  mass of living tissue for a population is present at…

Q: Which of the following staements about evoulution is true?  A) Evoulution is deliberate and…

A: Evolution is defined as changes in a population through consecutive generations which result in…

Q: Which of the following are ecosystem services provided by bacteria? A) fixation of nitrogen B)…

A: An ecosystem is defined as a community or group of living organisms that will live together and will…

Q: Hawks Mountain lions Snakes Field mice Rabbits Elk

A: The above diagram is presented with the various food chains that combine into a food web. Here the…

Q: 25) When two types of hyphae containing haploid nuclei fuse together without their nuclei fusing…

A: Fungi have now been classified and kept in a separate Kingdom because they have several unique…

Q: When my environment dries out, i am capable of losing all the water from my body and surviving in…

A: The environment around us is not always stable it continuously changes season changes occurs, food…

Environmental Microbiology

Environmental biology deals with the study of microorganisms and their interaction with their surroundings. This term itself covers the microbial interactions with water, soil, air, and microbial too.