Why are hetercysts in cyanobactiria critical components of the nitrogen cycle?

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science

Why are hetercysts in cyanobactiria critical components of the nitrogen cycle?

Nitrogen Cycle

KK I know that the Nitrogen cycle is the way that nitrogen in nature is changed into many different forms that are used by living organisms, but I have to explain how the phosphorus cycle differs from that cycle, and I don't know about that. Is it possible for you to provide ...

Nitrogen cycle

explain how the phosphorus cycle differs from the nitrogen cycle. The phosphorus cycle does not exist in a gaseous state and does not enter in the atmosphere. It cycles from land to sedimants in the ocean and back to land. The nitrogen cycle exists is a form of gas which ...

chemistry

Another “grand challenge” for engineering is managing the nitrogen cycle. Use the nature of the chemical bond in diatomic nitrogen to explain why any management is needed for this biogeochemical cycle. With so much nitrogen available in the atmosphere, why are engineering ...

Science

Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? A. denitrification B. nitrogen fixation C. producer uptake of nitrogen D. consumer decomposition

Science

2. Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? (1 point) A) denitrification B) nitrogen fixation C) producer uptake of nitrogen*** D) consumer decomposition Am I correct?

science

explain how the carbon cycle and the nitrogen cycle are connected.

Oceanography

What is OIL/RIG? What is its importance in the nitrogen cycle? How does nitrogen enter a marine system?

Science

In the nitrogen cycle, rabbits eat plants. Nitrogen is found in the rabbit in the form or proteins or bacteria?

Science asap

Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? nitrogen-fixing bacteria denitrifying bacteria decomposers producers Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication ...

Chemistry

When a sample is above critical temperature and above critical pressure, it is a supercritical fluid. What happens when a sample is above critical temperature but below critical pressure? What phase is that? What happens when a sample is above critical pressure but below ...

GCU

Identify the three components/puzzle pieces that you believe are most critical to the formation of a worldview. Refer to the Cosgrove text to help identify these components. 2) After considering these components, write an essay of 500-750 words that explains how these ...

Science, The Nitrogen Cycle

Multiple Choice: 1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other organisms can use? A. Nitrogen-Fixing Bacteria B. Denitrifying Bacteria C. Decomposers D. Producers 2. Which step in the nitrogen cycle is accelerated at the ...

Science check my answers

Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? denitrification*** nitrogen fixation producer uptake of nitrogen consumer decomposition Which of the following is carried out by denitrifying bacteria? break down large, nitrogen-...

Nitrogen Cycle

Could someone concisely and briefly summarize the nitrogen cycle? I'm all in a muddle. Please, I have to get this done by tonight. en.wikipedia. org/wiki/Nitrogen_cycle http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/N/NitrogenCycle.html

Science

1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? A. Nitrogen-Fixing Bacteria *** B. Denitrifying Bacteria C. Decomposers D. Producers 2. Which step in the nitrogen cycle is accelerated at the beginning of...

Science - N Cycle Management

Consider a heavily grazed pasture of fescue grass mixed with clover (clover is a legume) on a spring day. Assume it has not rained for several days and the soil has drained below field capacity. (Remember that cattle not only consume grass, but also destroy some by walking on ...

ayo science help pls? my answers

1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? A. nitrogen-fixing bacteria B. denitrifying bacteria C. decomposers D. producers 2. Which step in the nitrogen cycle is accelerated at the beginning of the...

Help me with this science. 30 POINTS .

1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogen-fixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen cycle is accelerated at the beginning of the ...

science

1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogen-fixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen cycle is accelerated at the beginning of the ...

Science

1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogen-fixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen cycle is accelerated at the beginning of the ...

Science

1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) A.)nitrogen-fixing bacteria B.)denitrifying bacteria C.)decomposers D.)producers 2. Which step in the nitrogen cycle is accelerated at the ...

Environmental Science

Explain how the nitrogen used for making proteins in a lion's body traveled from the atmosphere to the lion. How will it be returned to the atmosphere after the lion dies? Google Nitrogen cycle animal

Help me with this science.

Multiple Choice: 1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogen-fixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen cycle is accelerated at the ...

biology

explain what is the carbon cycle and why its called a cycle *explain four "moves" that occur in this cycle * explain the importance of this cycle to organisms *explain the human impact and effects on this cycle when fossil fuels are burnt

biology

explain what is the carbon cycle and why its called a cycle *explain four "moves" that occur in this cycle * explain the importance of this cycle to organisms *explain the human impact and effects on this cycle when fossil fuels are burnt

earth

Explain the Nitrogen Cycle

science

Explain the Nitrogen cycle

Biology

Are organisms critical to the completion of the water cycle? Why or why not?

Easy math Q that I can't figure out

What does the nitrogen cycle do to the islands?

Biology

Need help with these: 33. In addition to causing disease, protests also affect humans through a. their role in the nitrogen cycle b. their antibiotic properties c. their ability to clean up oil spills d. all of the above A? 35. Fungi obtain food by a. photosynthesis b. the ...

science

What is the importance of decomposers in the carbon cycle? Explain why nitrogen is important to organisms?

physical science

Predict which isotope of nitrogen is more commonly found, nitrogen-14 or nitrogen-15.(Hint: What is the average atomic mass listed for nitrogen in the periodic table?)

Science

please help me!!!! Q: what is one way that the phosphorus cycle differs from the carbon and the nitrogen cycles?

Science

The nitrogen cycle is carried out primarily by A.humans B.autotrophs C.bacteria D.fungi

chemistry

Many analytical instruments require liquid nitrogen. While filling an instrument with liquid nitrogen, an analytical chemist slips and spills the contents of the dewer, 25L, onto the floor. Since the boiling point of liquid nitrogen at 1atm is 77.4 K, all the nitrogen boils ...

Chemistry

Many analytical instruments require liquid nitrogen. While filling an instrument with liquid nitrogen, an analytical chemist slips and spills the contents of the dewer, 29.0 L, onto the floor. Since the boiling point of liquid nitrogen at 1.00 atm is 77.4 K, all the nitrogen ...

Science - N Cycle Management

Consider a corn field in the spring at the end of April. The field has been heavily tilled in the fall and all residues have been incorporated in the soil, and are decomposed by this time. Chemical fertilizer (an inorganic fertilizer with only nitrate nitrogen - NO3) has been ...

Cycle question

Is rock cycle also known as the phosphorus cycle? They are the same thing I'm guessing.

Physics of materials

Gaseous nitrogen has a density of 1.17 kg/m3 and liquid nitrogen has a density of 810 kg/m3. [The relative molecular mass of nitrogen is 28.0] What is the mean volume per nitrogen molecule in each case? What is the mean separation between nitrogen molecules in each case?

Material Physics

Gaseous nitrogen has a density of 1.17 kg/m3 and liquid nitrogen has a density of 810 kg/m3. [The relative molecular mass of nitrogen is 28.0] What is the mean volume per nitrogen molecule in each case? What is the mean separation between nitrogen molecules in each case?

Chemistry PLS HELP

The cover plate is removed from the gas jars shown iin the diagram. Nitrogen dioxide is a brown gas. After several days, the color of the gas is the same in both of the jars. What explains this change? So the picture shows this jar and nitrogen and nitrogen dioxide is ...

johnglenn

Discuss some of the advantages to having a cycle that partially replenishes itself. In the Calvin cycle, what would happen to the cycle if there was no carbon dioxide available

chemistry

A compound of nitrogen and oxygen is 36.8% nitrogen. A second compound of nitrogen and oxygen is 25.9% nitrogen. What is the ratio of masses of oxygen in the two compounds per gram of nitrogen?

Economic

A BUSINESS CYCLE IS CHARACTERIZED BY A CONTINUAL CYCLE OF EXPANSION AND CONTRACTION.WRITE AN ESSAY BRIEFLY ANALYZING THE COMPOSITION/PHASES OF BUSINESS CYCLE.

Economic

A BUSINESS CYCLE IS CHARACTERIZED BY A CONTINUAL CYCLE OF EXPANSION AND CONTRACTION.WRITE AN ESSAY BRIEFLY ANALYZING THE COMPOSITION/PHASES OF BUSINESS CYCLE.

Physics College

A heat engine operates in a Carnot cycle between 78.0°C and 340°C. It absorbs 22,000 J of energy per cycle from the hot reservoir. The duration of each cycle is 3.00 s. (a) What is the mechanical power output of this engine? (answer in kW) (b) How much energy does it expel ...

physics

There is a problem that asks if an ice cube is dropped into nitrogen (boiling point of nitrogen is 77K), how much nitrogen will evaporate? heat lost by ice = heat gained by nitrogen But by is the equation m(ice)*c(ice)*deltaT = m(nitrogen)*L(vaporation) ? Why isn't it m(ice)*c...

please help me!! with this science!!!!!

Multiple Choice: 1. If a kestrel eats a mouse that eats grass, the kestrel is a (1 point) producer. second-level consumer. first-level consumer. decomposer. 2. Which of the following best explains why a species of lizard is able to live in the desert but not in tundra regions...

BIO

Describe the phases of the nitrogen cycle, in the marine environment, starting with the death of a fish. Could someone help me with this? I just need it explained to me, I've watched and read many articles.. but still do not understand very well

chm

Liquid nitrogen is obtained by condensing gaseous nitrogen found in air and boils at 77.36 K. At the boiling point, the density of the liquid is 809 g/L and that of the gas 4.566 g/L. How many liters of liquid nitrogen are produced when 500.0 L of nitrogen gas are liquefied at...

chemistry

In the formation of smog, nitrogen and oxygen gas react to form nitrogen dioxide: N2(g)+2O2(g)→2NO2(g)How many grams of NO2 will be produced when 2.1L of nitrogen at 840mmHg and 28∘C are completely reacted? I know that you use the equation n=PV/RT to get the number...

Science

____ bacteria carry out the conversion of gaseous nitrogen to a biologically useful form of nitrogen. My answer is "nitrogen-fixing" (This is fill in the blank)

chemistry

i have to write chemical formulas and balance them: nitrogen and oxyen---> nitrogen monoxide N2+02---->2NO nitrogen monoxide and oxygen----> nitrogen dioxide gas. NO2+O---->NO2 (i'm not sure about this, please check) nitrogen dioxide and water----> nitrous and ...

Phosphorus cycle

Explain how the phosphorus cycle differs from the carbon cycle. The phosphorus cycle differs from the carbon cycle by the phosphorus being an essential element in molecules which carries energy to plant and animal cells. The phosphorus helps plants with root development, stem ...

Chemistry 11th Grade

If a certain oxide of nitrogen weighing 0.11g gives 56 ml of nitrogen and another oxide of nitrogen weighing 0.15 g gives the same volume of nitrogen (both at STP), show that these results support the law of multiple proportions.

Math - Calculus

Are endpoints also critical points? I'm trying to find the critical points of a function on the interval [-1,5]. So far,the only critical point I have is 2. Does that mean -1 and 5 are also critical points?

stats

A manufacturing process has 100 customer orders to fill. Each order requires one component part that is purchased from a supplier. However, typically, 2% of the components are identified as defective, and the components can be assumed to be independent. a. If the manufacturer ...

Probability and statistic

An assembly consists of three mechanical components. Suppose that the probabilities that the first, second, and third components meet specifications are 0.95, 0.96, and 0.98. Assume that the components are independent. Let X be the number of components that meet specifications...

Heat and properties of matter

An ideal gas unergoes a cycle of processes as shown in d p-v diagram gases, which statement correctly escribe the situation a. The internal energy of the gas increases over one complete cycle b. Over the entire cycle, work is done by the gas. C. The gas absorbs more heat than ...

earth

Atmosphere Homework! 1.Which of the following layers of the atmosphere is closest to space? 2.A barometer measures? 3. The atmosphere contains tiny solid particles called what? 4.The process by which the atmosphere slows Earth's loss of heat to space is called the ..? 5.Almost...

Marine Science

Describe the phases of the nitrogen cycle, in the marine environment, starting with the death of a fish. Could someone help me with this? I just need it explained to me, I've watched and read many articles.. but still do not understand very well

Calculus

A force of 200 N is resolved into two vector components of 150 N and 80 N. Are these rectangular vector components? Justify your response. If they are not, determine the directions of the components.

Separation processes

Hi, the question is: In an equilibrium diagram for a binary mixture, what does it mean for distillation if the relative volatility is low? a)Separation of the components is easy b)No separation of the components can be done c)There is no difference of ease in the separation of...

Critical Thinking

Consider the following conductive argument: P1. Critical thinking teaches the fundamentals of good reasoning. P2. Critical thinking helps people learn how to detect bad reasoning in the arguments they hear and read. P3. Critical thinking principles underlie all the academic ...

PHY

The components of a vector V can be written (Vx, Vy, Vz). What are the components and length of a vector which is the sum of the two vectors, V1 and V2, whose components are (5.0, 1.3, -15.0) and (2.3, -4.7, -1.0)?

Chemistry

nitrogen reacts with oxygen to form 2 compounds. Compund A contains 2.8 g of nitrogen for each 1.6 g of oxygen. Compound B contains 5.6g of nitrogen for each 9.6g of oxygen. What is the lowest whole number mass ratio of nitrogen that combines with a given mass of oxygen?

Chemistry

nitrogen reacts with oxygen to form 2 compounds. Compund A contains 2.8 g of nitrogen for each 1.6 g of oxygen. Compound B contains 5.6g of nitrogen for each 9.6g of oxygen. What is the lowest whole number mass ratio of nitrogen that combines with a given mass of oxygen?

Science question, only 1

What would be the consequence of an ecosystem that had no nitrogen-fixing bacteria? Nitrogen from decomposing animals would never be returned to the soil. Decomposers would not be able to break down the nitrogen present in plants they feed on. Plants would have to rely on ...

problem solving

for a parallel structure of identical components, the system can succeed if at least 1 of the components succeeds. Assume that components fail independently of each other and that each component has a 0.19 probability of failure. A) unusual to see 1 component fail? B) unusual ...

science

how is water purified in the water cycle? why is the sun so important in the water cycle? what role does evaporation play in the water cycle? thanks!!!! :)

Science

Nitrogen in air is int he form of two nitrogen atoms fastened together, N2. Is Nitrogen an element or is it a compound?Explain. PLease help me! I need help really badly! please help !!! Fast!!

Chemistry

How can Nitrogen and oxygen form nitrogen dioxide if both nitrogen and oxygen have a negative charge?

physics

A gasoline engine runs with 28 percent efficiency. It expels 3.60x10^4 J of heat in each cycle. a. Find the heat absorbed in one cycle. 128,571.4????? b. Find the work output in one cycle.

physics

With each cycle, a 2650-W engine extracts 2330 J from a thermal reservoir at 85.1°C and expels 1840 J into a thermal reservoir at 20.9°C. a) What is the work done for each cycle? b) What is the engine's efficiency? c) How much time does each cycle take?

Chemisty

For the following reaction, 0.390 moles of nitrogen gas are mixed with 0.139 moles of oxygen gas. nitrogen (g) + oxygen (g) nitrogen monoxide (g) What is the FORMULA for the limiting reagent? What is the maximum amount of nitrogen monoxide that can be formed? moles

critical points

(1 pt) Find all critical values for the function f(x) = 6 x^3 - 18 x + 1, and then list them (separated by commas) in the box below. List of critical numbers:

Physics

partscoretotalsubmissions1--10/12--10/13--10/14--10/1----4--The tail of a vector is fixed to the origin of an x, y axis system. Originally the vector points along the +x axis. As time passes, the vector rotates counterclockwise. Describe how the sizes of the x and y components...

Math

The critical numbers of the function: f(t)=7t^(2/3)+t^(5/3) f'(t)=14/3t^(-1/3)+(5/3)t^(2/3) I got 0 as a critical number but it is hard for me to factor the f'(t). Whats the other critical number? Thank you.

macroeconomics

State the four sections of a buisness cycle. state endogenous and exogenous conditions that affect the buisness cycle. Explain the reasons that inventories of producers are an impoertant in the growth-and decline-in a buisness cycle. Take a shot. Be sure to do a little ...

math

I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"

math

I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"

Statistics

A certain type of artificial heart has four independent, critical components.Failure of any one of these components is a serious problem that will cause the artificial heart to fail. The 5 year failure rate for each component follows: component 1=.02, component 2=.05, ...

phy

An engine absorbs 2000j of heat from a hot reservoir and expels 750j to a cold reservoir during each poerating cycle, (i)what is the efficiency of the engine (ii)How much work is done during the cycle? (iii)What is the power output of the engine if each cycle last for 0.5 ...

Math

A company that produces a particular machine component has 3 factories, one each in Buffalo, Detroit, and Pittsburgh. 39% of the components produced come from the Buffalo factory, 36% of the components come from the Detroit factory, and 25% of the components come from the ...

Math

A company that produces a particular machine component has 3 factories, one each in Buffalo, Detroit, and Pittsburgh. 39% of the components produced come from the Buffalo factory, 36% of the components come from the Detroit factory, and 25% of the components come from the ...

ashford university

1. Which water cycle processes are represented in this model and by what components? Answer = 2. Which water cycle processes are not represented? How could the model be altered to include each of these processes? Answer = 3. How would the “weather” be affected if the water...

critical thinking

Consider the following: You have learned to think and write critically, assess argument credibility, recognize rhetorical devices, categorize fallacies, analyze arguments, and assess argument validity. In this critical thinking quiz, you have the opportunity to test your ...

critical approach help

does anyone know what the critical approaches are i know that readers response is one but i don't know the others thanks I assume you mean critical approaches to literature. See this: http://bcs.bedfordstmartins.com/virtualit/poetry/critical.html

science

Which ones apply to a solution ? i thought it was 2,6,7 and 8 1. Does not settle on standing 2. scatters light 3. can separate when allowed to stand 4. contains only fixed amts of components 5. Often appears cloudy 6. components do not lose their own properties 7. looks the ...

science

Which ones apply to a compound? i thought it was 4 and 6 1. Does not settle on standing 2. scatters light 3. can separate when allowed to stand 4. contains only fixed amts of components 5. Often appears cloudy 6. components do not lose their own properties 7. looks the same ...

chemistry

Liquid nitrogen, which has a boiling point of 77 K, is commonly used to cool substances to low temperatures. How much energy must be removed from 1.4 kg of gaseous nitrogen at 77 K for it to completely liquefy? Assume the latent heat of liquid nitrogen is 2.01 × 105 J/kg. ...

science 207 lab wk 5

1. Which water cycle processes are represented in this model and by what components? Answer = 2. Which water cycle processes are not represented? How could the model be altered to include each of these processes? Answer = 3. How would the “weather” be affected if the water...

chemm

A car air bag requires 70. L of nitrogen gas to inflate properly. The following equation represents the production of nitrogen gas: 2NAN subscript 3 yielding 2NA + 3N subscript 2 the density of nitrogen gas is typically 1.16 g/L at room temperature. How would you calculate the...

Chemistry

According to the following reaction, how many grams of nitrogen gas will be formed upon the complete reaction of 22.2 grams of hydrogen gas with excess nitrogen monoxide? nitrogen monoxide (g) + hydrogen (g) nitrogen (g) + water (l)

biology

What does the word cycle tell you about the chemical reactions of the Calvin cycle?

science

Explain the difference between the ovarian cycle and the menstrual cycle ??

Bio

How does the Calvin cycle make sugar from carbon dioxide? Where does the energy come from to drive this cycle?

Science

changes in the carbon cycle cause global temperatures to rise how might this affect the water cycle

science

Changes in the carbon cycle cause global temperatures to rise. How might this affect the water cycle?

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