What is the net primary productivity of an algal bed if the gross primary productivity in an algal bed is 7 kcal/m2/yr and respiration is 3 kcal/m2/yr?

Answers

Answer 1

Answer:

[tex]NPP = 4\ kcal/m^2/yr[/tex]

Explanation:

Given

[tex]Gross\ Primary\ Productivity, GPP= 7\ kcal/m^2/yr[/tex]

[tex]Respiration, R= 3\ kcal/m^2/yr[/tex]

Required

Determine the Net Primary Productivity (NPP)

NPP is calculated as follows;

[tex]NPP = GPP - R[/tex]

Substitute values for GPP and R

[tex]NPP = 7\ kcal/m^2/yr - 3\ kcal/m^2/yr[/tex]

[tex]NPP = 4\ kcal/m^2/yr[/tex]

Hence, the Net Primary Productivity is [tex]4\ kcal/m^2/yr[/tex]


Related Questions

Three most impactful wars between the colonists and native americans

Answers

1: Pequot War of 1636–38, between the Pequot tribe and colonists from the Massachusetts Bay Colony, and Connecticut Colony and allied tribes.

2: Kieft's War 1643–45 in the Dutch territory of New Netherland, between colonists and the Lenape people.

3: French and Indian War: France expanded into the Ohio River Valley from 1754 to 1763, they fought with Britain for control of North America. Both sides forged alliances with Indians to help fight their battles. Ended with signing the Treaty of Paris, 1763.

What accurately describes the atoms of a specific element

Answers

Answer: If its not the quiz im thinking of, then it would be the amount of protons, neutrons, and electrons that make up a certain element. However, if this IS the quiz im thinking of, then it would be:

A zinc, Zn, atom contains 30 protons inside the nucleus and 30 electrons outside the nucleus.

Which of the following is NOT considered a high risk group for foodborne
illness?
A
Teenagers
B
Infants
с
Preschoolers
D
Elderly people

Answers

Answer:

Preschoolers

Explanation:

preschoolers is not considered a high risk group of foodborne illness

The group not considered a high risk group for foodborne illness is : ( A ) Teenagers

Who are teenagers ?

Teanagers are children within the age bracket of 13 to 19 years of age.Teenagers are more physically developed than infants and preschoolers. They also possess a stronger immune system than elderly people, infants and preschoolers which makes them more resistant to foodborne illness.

Hence we can conclude that The group not considered a high risk group for foodborne illness is teenagers.

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How does the word gang support the author’s purpose in this sentence? It evokes a positive image of teenagers who are part of a club. It evokes a negative image of teenage criminals. It evokes a neutral image of a group of teenagers. i need a answer right away please

Answers

Answer:

Negative image of teenage criminals

Explanation:

Gang has a negative connotation

Answer:

b

Explanation:

it was right on edg

PLZ HELP as a result of the change in the migratory pattern, the two groups of blackcaps(those that migrate to England vs those that migrate to spain) have different mating seasons. Blackcaps that migrate to England have an earlier mating season. Scientists believe that this difference may result to two different species of birds. This shows: a) the effects of symbiosis b)the effects of local evolution or migration on an ecosystem c) the difference between biotic factors in an ecosystem d) how migratory patterns change in response to alterations in an ecosystem

Answers

Answer:

b) the effects of local evolution or migration on an exosystem

Explanation:

a) false; symbiosis is the relationship between two species with either a mutual benefit to both creatures, one benefiting and the other remaining neutral, or one being negatively affected while the other benefits. There is no relationship between the two groups of blackcaps to a is false.

b) true; the effects of local evolution or migration on an ecosystem. Local evolution has not occured yet but migration has. The effect that scientists believe may happen to the ecosystem because of the migration is the creation of a new species, which would definitely effect an ecosystem

c) false; biotic factors are the living parts of an environment, such as plants, animals, and insects. The difference in the two groups of blackcaps isn't what biotic factors they use but when their mating season is. Biotic factors have no effect whatsover.

d) false; there are no given alterations in the ecosystem. Migration patterns do not just change because of something as small as a shift in bug population. Migration habits are largely genetic, such as is the case of monarch butterflys migrating from north to south and back across the continent. If a group of blackcaps are migrating somewhere different, it has been ocurring for a while, so it isn't fault of the ecosystem that suddenly made blackcaps switch migration course.

Answer: D how migratory patterns change in response to alterations in an ecosystem

Explanation:

Got it right on Edge

Phoebe knit a hat for a friend. She started with 197 meters of yarn. When she finished, she had 8,200 centimeters of yarn left over. How much yarn did Phoebe use to knit the hat?

Answers

Answer: 115 meters

Explanation:

From the question, we are informed that Phoebe knit a hat for a friend and that she started with 197 meters of yarn but when she finished, she had 8,200 centimeters of yarn left over.

First, we have to understand that 100 centimeters equals 1 metre. Therefore, 8200 centimeters of yarn is the same as 8200/100 = 82 meters of yarn.

The yarn that Phoebe use to knit the hat will be:

= 197 meters - 82 meters

= 115 meters

Work that is not completed in school is called:
O A. homework.
O B. detention.
O C. group study.
D. integration

Answers

Answer:

My answer to the question is Homework.


Laurie is measuring the temperature in her back
yard. At 4 P.M. she measures –8 degrees Celsius.
For the next 2 hours, the temperature decreases by
3 degrees Celsius per hour. What is the temperature
at 6 P.M., in degrees Celsius?

Answers

Answer:

The temperature at 6 P.M. is -14°C

Explanation:

The temperature at 4 P.M. = -8 degrees Celsius

The duration over which the temperature decreases by 3 degrees = 2 hours

The total decrease in temperature = 2 × 3 = -6°C

There the temperature change after 2 hours = -8°C -6°C = -14°C

The time change after 2 hours = 4 P.M. + 2 hours = 6 P.M.

Therefore, the temperature time after 2 hours = 6 P.M.

Which gives;

The temperature at 6 P.M. = -14°C.

individuals experience the whole world solely through their own senses and actions with of Jean Piaget's stages of cognitive development?
concrete operational
formal operational
pre operational
or sensorimotor​

Answers

Answer:

I think that the answer is D. Sensorimotor

Explanation:

Answer:

Sensorimotor

Explanation:

I got it right on the test nun to worry about

How is blood chemistry linked with
moods and motives?

Answers

Answer:

blood chemistry is linked with moods and motives by evolutionary.

ASAP TODAY What does Diamond say about why societies FAIL to solve their problems?

Answers

Answer:

Diamond identifies five factors that contribute to collapse: climate change, hostile neighbours, collapse of essential trading partners, environmental problems, and the society's response to the foregoing four factors.

A sequence is a _ whose domain is the set of natural numbers

Answers

Answer:

A sequence is a function whose domain is the set of natural numbers.

Which hotels are most likely to have "inn" as part of their name?
A.airport hotels
B.boutique hotels
c. luxury hotels
D.motels

Answers

Answer:

i believe  c

Explanation:

The hotels that are most likely to have "inn" as part of their name are "Motels". (Option D)

What are motels?

Motels are roadside lodges that are designed specifically for those who are traveling. They are arranged as low block rooms.

An Inn is similar in that it is designed to also provide food, drinks and lodging services for those who are travelling.

Learn more about motels at:
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who was osama bin laden? why ishe historically significant?

Answers

Answer: Osama bin laden was the founder of pan-Islamic militant organization( a terrorist group).

Osama bin laden is historically significant because he masterminded 11 attacks which resulted in the deaths of nearly 3000 people. Making him an the FBI most wanted.

Explanation:

How many solutions exist for the given equation? 3x + 13 = 3(x + 6) + 1

Answers

Answer:

There is no solutions to this problem.

Because when you solve it you get an untrue statement. When this happens, it means that there is nothing that can make it true.

Explanation:

3x + 13 = 3(x + 6) + 1  use distribute property

3x + 13 = 3x + 18 + 1 combine like terms

3x + 13 = 3x + 19 subtract 3x from both sides

13 = 19

The solution is untrue the reasoning being when the equation is simplified into
3x + 13 = 3x + 19

You would have to take 13 over the equals sign and the 3x on the rhs too, which will make the equation
3x - 3x = 19 - 13
0 = 6
Which is totally incorrect

who gets hurt in an economic recession

Answers

Everybody gets hurt during a recession. During a recession, output falls and as a result, unemployment rises. Employees, family members etc. are affected as many persons lose jobs and those who are seeking jobs are unable to find.

2 ways information can be stored as short-term memory.

Answers

There's only one way

Explanation:

The duration of short term memory seems to be between 15 and 30 seconds. Items can be kept in short term memory by repeating them verbally (acoustic encoding), a process known as rehearsal.

Answer:

There are two ways in which capacity is tested, one being span, the other being recency effect.

Explain the advantages and disadvantages of using surveys for data collection.

Answers

Answer:

Advantages                                  Disadvantages

Larger radius than personal  Difficult to develop rapport

Larger target                                   Non-response

Explanation:

Answer:

Some of the advantages of surveys are, efficient data collection, gather info on attitudes, values, thoughts, feelings, and other unobservable phenomena, and its easy to use. Some of the disadvantages are that it may be unreliable (deception, memory lapses, poor questions), and they cannot draw cause-and-effect conclusions.


How did the United States live up to the ideals of Equality, Democracy, and Liberty in the 19th and 20th
centuries?









Answers

Answer:

Explanation:

We will study supply and demand in this "Macroeconomics of the Gloabal Econaomy" course ... But we can see what happens to demand if the price of pizzas increases. ... This helps explain why we buy more pizza when the price decreases. ... What is a normal good for one consumer might be an inferior good for another.

5. What were Europeans’ motivations for exploring and settling the Americas, and why did competition increase during the 1500s and 1600s?

Answers

Answer:

The main motivations why the European powers (mainly Spain, Portugal, France and Great Britain) began to explore and occupy the American continent were the amount of valuable natural resources that were in the continent, such as gold, silver, food, etc., which could be used by European nations to enhance their mercantilist economies.

In addition, it was a time and a political context in which the greatness and power of nations is mediated according to their territorial extension. Thus, a huge continent like America gave these nations the possibility of expanding their dominions, controlling the seas and politically surpassing their adversaries.

It was precisely for these reasons that a century after the discovery of America, competition between nations increased, with the arrival of other nations such as the Netherlands or Russia, which also tried to establish colonies and obtain their share in the territorial and economic distribution of the continent.

where did the silk roads develop

Answers

Answer:

The Silk Road was an ancient network of trade routes, formally established during the Han Dynasty of China, which linked the regions of the ancient world in commerce between 130 BCE-1453 CE.

Explanation:

*Hope this helped*

Answer:

originated from Chang'an (now Xi'an) in the east

Explanation:

This route was opened up by Zhang Qian in the Western Han Dynasty and the routes were gradually formed throughout the Han Dynasty. Ended at the Mediterranean in the west, linking China with the Roman Empire.

The diagram shows a wave. The quantity shown is the amplitude. This quantity is directly proportional to which of these other quantities?
A) Energy
B) Frequency
Eliminate
C) Period
D) Wavelength

Answers

Answer:

A) Energy

Explanation:

Energy and Amplitude are directly proportional because an increase in energy always results in an increase in amplitude, and vice versa, so they are directly proportional. As for the other options, they are all independant from the amplitude (i.e. Changing them would not result in a change in amplitude e.g. A wave can have a big amplitude and high frequency or a big amplitude and low frequency, as neither affects the other). Therefore it is option A) Energy.

Hope this helped!

You are a plant scientist investigating whether potassium is an important element in fertilizer for plant growth. You’ve written a testable question for investigation that includes an independent variable and dependent variable. Now develop a hypotheses, alternative hypothesis, and a null hypothesis for the investigation.

Answers

Answer:

88

Explanation:

a hypothesis that predicts a relationship between the independent and dependent variables

an alternative hypothesis that predicts a different relationship between the variables than the hypothesis

a null hypothesis

A sailboat moving southward through the water experiences a force of 2500 newtons exerted by the wind on its sail. The water and air resistance apply a force of 1500 newtons in the opposite direction of the sailboat's direction of travel

Answers

Answer:

The sailboat moves southward at a force of 1000 Newton

Explanation:

The sailboat is moving south at 2500 newtons. The opposite force is only 1500 newtons, which is less than 2500 units. The greater force cancels out the lesser force. In order for the boat to be stopped or pushed back, the water and air resistance would of had to of been greater than or equal to 2500 Newtons. Because of this opposite force, the boat continues to move but with a lesser amount of force. You can use subtraction to find the remaining force the boat has.

2500 Newtons - 1500 Newtons = 1000 Newtons

Why does the amount of CO2 production matter? Explain
This is for apes

Answers

Answer:

It is significant that so much carbon dioxide stays in the atmosphere because, CO2 is the most important gas for controlling Earth's temperature. //Plants breathe in CO2 to give us oxygen.

where is beligian congo?

Answers

Belgian Congo was an Belgian colony. It is near Central Africa on the equator. It has almost 85 million people.

How does our footprint change as we get older?

Answers

Answer:

This is partially related to the fact that people at older ages produce less emissions and that a reduction of the proportion of people in the labor force tends to slow the growth in the size of the economy.

Explanation:

best answer gets brainliest!!!

i am doing a rhetorical device project for ap lang and i’m having trouble trying to answer this question:

how does this example from barack obama’s 2004 dnc speech shown to be an effective use of climax (the rhetorical device, not the plot of a story)?

if you need a definition of climax, it is a rhetorical device in which words, phrases, or clauses are arranged in order of increasing importance.

Answers

Answer:

Well, the passage starts out with using words that are increasingly more and more intense. We first begin with the use of the word "solemn", which is relatively peaceful, laid back, and not exactly very provoking. then next we get the phrase "shade the truth" which provokes question in the reader... of implying something isn't completely represented. Then we have a long explanation why, further drawing in the reader into this conflict, discussing the families and the soldiers (emotional element!!) and then it finally hits the climax: to earn the respect, a very hard hitting sentence.

in short, this phrase slowly draws in the reader of the importance of taking care of these nations troops.

What's the distribution of Eye Color?
Ap Statistics

Answers

Answer:

79% has brown eye which make it common. 8-10%has blue eye . 5% has hazle or amber eye .2 % has green eyes . rarer include red violet gray etc

As a general rule, women __________.

Answers

Are more flexible than men
I mean that’s what I’d say

If there’s more context please let me know! So I could give a better answer :)

Answer:

as a general rule women should always remember that its their body and they should never let anyone tell them what to do with it.

Explanation:

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