Studies of the deep subsurface have also identifiedheterotrophic populations. What types and sources ofnutrients are available to those organisms?

Q: The following carbon sources can be used for nutrition, by at least some heterotrophic organisms,…

A: The organisms that cannot produce their own food, instead of taking the nutrition from the other…

Q: When excess nitrogen and phosphorus from local farms ends up, in river and inlets, what process can…

A: Nitrogen and phosphorus are the two main primary nutrients in commercial fertilizers and they play…

Q: Give an example of an inorganic nutrient pollutant. What is its effect on the aquatic environment?

A: Inorganic nutrients pollutant means that the nutrients in large amounts causing water pollution for…

Q: By whom the secondary productivity is rate of formation of new organic matter?

A: The productivity in ecology is refers to the rate of generation of biomass in an ecosystem. It is…

Q: What result can a lake give which is rich in organic waste?

A: Organic waste is any material that is biodegradable and comes from a plant or an animal.…

Q: Please select the correct sequence of steps involved in the creation of a dead zone in a water body.…

A: Dead zones are the regions of waterbodies which do not support life. These zones are devoid to…

Q: Which organisms are secondary consumers?

A: Trophic level is the position of the organism in a food web. A food web describes which organisms…

Q: Explain the concepts cycling and nitrogen circulation in brief?

A: Nitrogen (N2) or dinitrogen is a vital micronutrient for life as it is an important component of…

Q: If earth is filled in di-nitrogen gas, why is the productivity of so many ecosystems limited b…

A: Nitrogen is the 7th element in the periodic table. It is discovered in 1772 by the Scottish…

Q: Increase in concentration of the toxicant at successive trophic levels is known as what?

A: The trophic level is nothing but a position acquired via an organism in the food web.  The food…

Q: Contrast and compare the microbial communities found in lotic systems with those in lentic systems

A: The microbial communities can be defined as the group of microorganisms found at a particular place.…

Q: Answer the following questions: What is the meaning of biogeochemical cycles? What are the major…

A: The flow of oxygen and carbon dioxide is a constant in our daily life. Animals' steady breathing and…

Q: Which of the following is NOT the usual mechanism of transport of atmospheric microbes? A.…

A:

Q: Why is the rate of assimilation of energy at the herbivore level called secondary productivity?

A: Productivity is the rate of generation of the biomass by an individual,population or community in an…

Q: how do density-dependent and density- independent limiting factors relate to biotic sand abiotic…

A: The size of a population and its growth can be affected by many factors in nature. These factors are…

Q: outline the types of evidence used to demonstrate nutrient limitation of primary production in…

A: Primary production in an aquatic ecosystem is the production of organic matter by the process of…

Q: How efficient is energy transfer between trophic levels in foodwebs?

A: The efficient energy transfer between trophic levels in food webs follows certain rules. Here we…

Q: What are the abiotic reservoirs of nitrogen? In what form does nitrogen occur in each reservoir?

A: Ans: Nitrogen exists in two reservoirs as biotic as well as the abiotic reservoir. They are…

Q: Which of the following processes is not directly involved in the hydrologic cycle? (a) transpiration…

A: Answer is option d.)nitrification.

Q: In points, summarize the nitrogen cycle attached below.

A: Nitrogen cycle is the biogeochemical cycle by which nitrogen is enters and leaves the atmosphere..

Q: What result can a river with an inflow of domestic sewage rich in organic waste can give?

A: The phenomenon of ageing of water bodies naturally due to increase in its nutrient concentration is…

Q: What are the most sustainable approaches for meeting our needs for clean fresh water?

A: Introduction :- Clean fresh water is the basic need of living organisms including humans . Clean…

Q: How can levels of nitrates and bacteria be controlled in runoff water?

A: Pollution is any undesirable change in physical, chemical or biological characteristics of air,…

Q: In a seagrass ecosystem, nutrients restrict primary production under low nutrient (oligotrophic)…

A: The biological impacts of an increase in nutrient concentration are referred to as eutrophication.…

Q: How are microbes usedin the bioremediation of contaminated groundwatersites and What is the…

A: We know that due to excessive human activities our natural resource like water is getting…

Q: Compare the two microhabitats based on the Net Primary Production (NPP), Community Respiration (CR),…

A: Net Primary productivity is defined as the gross primary productivity minus the loss of energy in…

Q: Human activities alter the transfer rates of the nitrogen cycle, __________ the fixation rate.

A: Nitrogen is the most abundant element found in the atmosphere. Nitrogen is essential for all living…

Q: What

A: Introduction :- Nitrogen is the fifth most abundant element in the universe. It constitutes 78% of…

Q: Why is release of sulfide from oxygen minimumzones infrequent, occurring at times of…

A: Oxygen minimum zones (OMZs) are the regions where the oxygen level is depleted at intermediate…

Q: Can you describe the nitrogen and phosphorous cycles in terms of nutrient availability please?

A: The nutrient cycle is a cycle system where energy and matter are transferred between living and…

Q: Describe the following nutrient cycles. Should be comprehensive yet concise. 1. carbon cycle 2.…

A: Introduction :- The carbon cycle depicts the continuous movement of carbon atoms from the atmosphere…

Q: Describe at least three mechanisms microbes have evolved to adapt to the low nutrient conditions…

A: An oligotroph is are a microorganism that can survive in an environment containing very low levels…

Q: Why are total soil concentrations poor indicators of the amounts of ions that may bioaccumulate…

A: Bioaccumulation refers to the accumulation of the substances, such as pesticides or other chemicals.…

Q: Which organisms are the chief produces in oceans?

A: Ecosystem is a community or group of living organisms that live in and interacts with each other in…

Q: According to the data shown in the map, which state is experiencing the most severe overall declines…

A: The above map shows changes in Ogallala aquifer water levels from the historical level to the year…

Q: Which nutrient limits phytoplanktonproduction along the coast of Long Island?

A: Nutrition is study of nutrients in the food, their process, and relationship of health and disease.…

Q: With consideration of the plankton density and other parameters, explain the difference or…

A: Gross primary productivity (GPP) is the amount of carbon fixed during photosynthesis by autotrophs…

Q: Which nitrogen flux is incorrectly described? O nitrification is the conversion of ammonium to…

A: Nitrogen is the non metal element belonging to group 15 of the periodic table.It is colourless,…

Q: Gaseous nutrient cycle and sedimentary nutrient cycles have their reservoir . Name them. Why is a…

A: The pathways by which various biotic and abiotic elements are circulated throughout the environment…

Q: Describe the process of nitrogen fixation and explain its ecologicimportance

A: There are two different nitrogen-fixing microorganisms they are free-living and mutualistic…

Q: What are the basic needs of aquatic biota

A: Flora and fauna on earth are present in all three different habitats, i.e. the water, land, and air.…

Q: How do plankton density and other parameters affect any observed microhabitat's computed Gross…

A: Introduction Gross productivity is the overall rate of energy capture.

Q: The highest DDT concentration in aquatic food chain is occurred in what?

A: Dichlorodiphenyltrichloroethane (DDT) is an odorless, tasteless, and colorless compound. It is a…

Q: Which of the following factors would explain why there is a decreasing trend of microbial population…

A: Bacterial growth occurs when a bacteria divides into two daughter cells, a process known as binary…

Q: a. Nutrient cycles are also referred to as biogeochemical cycles. EXPLAIN the term biogeochemical…

A: The nutrient cycle is the Pathway of exchanging organic and inorganic matters between biotic and…

Q: What is the difference between an open and closed system in reference to nutrient acquisition? Why…

A: An open system is a system that can easily exchange matter as well as energy with the surroundings…

Q: Why is it good to divert yard waste and organic material from the general waste stream?

A: Composting is an aerobic method of decomposing organic solid wastes. Thus it can be used to recycle…

Q: To what extent do nutrients from terrestrialecosystems affect organisms in the lake?

A: INTRODUCTION: ECOSYSTEM is a self regulatory and self sustaining structural and functional unit of…

Physical and Chemical features

The physical property of a compound could be determined without modifying the originality of the compound. Examples of physical properties are density, hardness, color, boiling, and melting point. The chemical property expresses the ability of a compound to undergo a particular chemical change.