Is the Harvard Forest a carbon source or a carbon sink, and how has the net ecosystem exchange (NEE) changed over time?

Answers

Answer 1

Answer:

This is strong evidence that suggests that the forest acts as a carbon “sink”: each year, it removes more CO2 from the air than it produces.

Explanation:

Answer 2

There are different sources of carbon. Harvard Forest is known to be a carbon sink.

Harvard Forest is known to have active C sink that is due to the forest regrowth after land abandonment.

Net ecosystem exchange is known to be negative every year. but the result is shown to be very variable. Result also show a decrease over time and this implies that the forest is removing more CO2 from the atmosphere presently than before.

When you look at the data of the last 25 years, there is a pattern of NEE being negative and also many variability.

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Related Questions

17. In humans, pointed eyebrows are dominant over smooth
eyebrows. Angela's father has pointed eyebrows, but she
and her mother both have smooth eyebrows. What is her
father's genotype?

Answers

Answer:

BB or Bb

Explanation:

B= dominant genotype

b= recessive genotype

B always shows even if the genotype is Bb leaving either option as correct

How many half life’s did it take for the original amount of parent isotope to decay the current amount?

Answers

Answer:

where's the image?

Explanation:

What are some examples of metabolic processes in cells?

Answers

Answer:

Respiration

Photosynthesis

DNA synthesis

RNA synthesis

Protein synthesis

Explanation:

Answer:

The processes of making and breaking down glucose molecules are both examples of metabolic pathways

Explanation:

A metabolic pathway is a series of connected chemical reactions that feed one another. The pathway takes in one or more starting molecules and, through a series of intermediates, converts them into products

Cell division occurs as part of which proces

Answers

Answer:

larger cell cycle

Explanation:

Which of the following organ systems coordinates responses to stimuli?
a. nervous system
b. muscular system
c. integumentary system
d. Immune system

Answers

From the question ‘which of the following organ systems coordinates responses to stimuli’ a. nervous system is the correct answer.
The answer is the nervous system.
The stimuli reacts because of the nerves.Example if you put your hand on a hot pot of fire the nerves will directly send the information to the brain which will tell you to remove your hand immediately

If albumen is broken down by a protease, what sort of chemical is albumen?

Answers

Albumen is a sort of protein.

Albumin is broken down by the activity of protease enzyme, this enzyme is responsible for the digestion of proteins. Therefore, albumin is chemically protein in nature.

What is Albumin?

Albumin is a family of proteins. These are globular proteins in which the most common are the serum albumins. All the proteins of the albumin family are water-soluble and moderately soluble in concentrated salt solutions. This protein denatures on continuous heat treatment.

Albumins are commonly found in blood plasma. It differs from other blood proteins as they cannot be glycosylated. Substances which contains albumin proteins are called albuminoids.

A number of blood transport proteins are found to be evolutionarily related in the albumin family such as serum albumin, alpha-fetoprotein, vitamin D-binding protein and afamin. This family of proteins is only found in vertebrates.

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What is a fluid? What states of matter are considered fuilds?

Answers

Answer:

Liquids and gases are called fluids because they can be made to flow, or move.

Explanation:

All gases and all liquids are fluids, as well as a few solids known as "amorphous solids," like glass. A fluid is matter that flows when a force is applied to it. Period.

the use of living organisms to detoxify polluted ecosystems is called _____.

Answers

Answer:

The use of living organisms to detoxify polluted ecosystems is called Bioremediation.

Explanation:

What’s the student scientific question?

Answers

Answer:

The scientific question posed by the student is, Does compost cause tomato plants to grow faster and taller than artificial fertilizer?

Explanation:

the largest blood pressure changes are found in what vessel?

Answers

Answer:

arteries

Explanation:

Blood vessels include arteries, capillaries, and veins. Arteries carry blood away from the heart and can divide into large and small arteries. Large arteries receive the highest pressure of blood flow and are more thick and elastic to accommodate the high pressures.

What terrorist group became active in great britain in 1974?

Answers

Answer: Read the bottom the explaination

Explanation:Accordingly, the IRA began a series of terrorist attacks on Britain's mainland. The IRA began its campaign when in February 1974 a bomb exploded on a bus that was transporting soldiers and their families to an army base in North Yorkshire; 12 people were killed, including two young children.

Answer:

The Real Irish Republican Army (RIRA)

Crossing-over happens between: A. non-homologous chromosomes during meiosis I B. homologous chromosomes during meiosis I C. non-homologous chromosomes during mitosis D. homologous chromosomes during mitosis

Answers

Answer:

B. homologous chromosomes during meiosis

2. Apply Scientific Reasoning Your teacher
has prepared a solution by stirring sodium
thiosulfate into hot water in a beaker. After
it has cooled, she drops a small crystal of
sodium thiosulfate into the beaker. The small
crystal quickly grows very large. Explain
what happened.
sodium thiosulfate into the beaker. The small crystal quickly grows very large. Explain what happened

Answers

Answer: heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. ... Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.

Heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.

What is sodium thiosulphate?

The inorganic compound sodium thiosulfate, sometimes known as sodium thiosulphate, has the formula Na2S2O3.xH2O.

It can be found as the pentahydrate which is white or colorless. The solid is a crystalline efflorescent (quickly loses water) substance that readily dissolves in water.

Gold mining, water purification, analytical chemistry, the creation of silver-based photographic film and prints, and medicine all make use of sodium thiosulfate.

The treatment of cyanide poisoning and pityriasis are among the medical applications of sodium thiosulfate.  It is among the safest and most useful medications required in a healthcare system.

Therefore,  Heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.

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Calcium ions are needed in a contraction because they bind to which of the following?

Answers

Answer:

b. Troponin

Explanation: is correct/post protected

Which level of organization below is the most complex component of a multicellular organism? *
Heart
Brain
Skin cells
Reproductive system

Answers

Answer:

Reproductive system, I believe because system levels are above organ levels complex-wise.

Explanation:

Answer:

Brain

Explanation:

DNA polymerase always adds nucleotides to the ____ end of the leading strand and the ____ end of the lagging strand.

Answers

Answer:

1.Deoxyribose

2.Backbone

Explanation:

Please can someone explain artificial insemination in animals.

Answers

It is used worldwide to deposit stored semen directly into a cow or heifer’s uterus

where would you most likely find nitrogen-fixing bacteria?

Answers

Answer:

On the roots of legumes

Explanation:

Answer:

In the roots of a legume.

Explanation:

Since nitrogen fixation happens in the soil, from decomposing plants or animals, the nitrogen soon moves up to the roots of a legume so the plants absorb the nutrients left over.

Hope this helps! Stay beautiful! <333

What is the slope of the line that passes through the points (-8, -1)(−8,−1) and (-6, -2) ?(−6,−2)?

Answers

Answer:

m=-2/1

Explanation:

x2-x1/y2-y1

This type of cell is a eukaryote, and does NOT have a cell wall or chloroplasts.


A. Archaea

B. Animal

C. Plant

D. Bacteria

Answers

The answer is B.
The answer A and D are classified as prokaryote. C is classified as eukaryote with cell walls and chloroplasts, but B without cell walls and chloroplasts.

PLEASE HELP ME IM TIMED!

Answers

Answer:

number 2

Explanation:

nucleic acid. organic molecule that stores hereditary information; DNA and RNA.

Answer:

It would be #2

Explanation:

If you refer back to my first answer, you can see that this macromolecule is a nucleic acid because of the phosphate backbone with a sugar and nucleotide. Its purpose is to store/transmit genetic information.

What type of organism are losing population around the planet?

Answers

Answer:

indian elephant

whale

mountain gorilla

black rhinoceros

sea turtle

orangutan

red panda

tiger

When looking at a liver cell through the microscope, one distinctive characteristic that distinguishes it from all other cells is that:

Answers

Various organelles are present because the liver cell has many functions.

who is the most list person in the world. ​

Answers

Answer:

Stephen Hawking.

According to wikipedia, Stephen William Hawking was a British theoretical physicist, astrophysicist, cosmologist, and science popularizer.

"Stephen Hawking was one of the greatest theoretical physicists of the modern age. Best known for his appearances in popular media and his lifelong battle against debilitating illness, his true impact on posterity comes from his brilliant five-decade career in science." (livescience.com)

how many calories in chick fil a peppermint milkshake?

Answers

Answer: 660 total calories. The whipped cream accounts for 60 of those calories, the cherry is 5 of those calories.

It also has 21g of fat, 109g of carbs, and 11g of protein

 

Answer:

660 calories

Explanation:

Viruses can reproduce only under which of the following conditions?When they are outside a living organism.When they carry out respiration.When they grow or moveWhen they are inside a host cell

Answers

Answer:

when they are inside a host cell

Explanation:

remember viruses aren't living because of this they need a host of not they can't reproduce and would well die

A(n) ______ partitions the sternoclavicular joint into two separate synovial cavities, increasing the mobility of the joint.

Answers

Answer:

Articular disk

Explanation:

The articular disk (or disc) is a thin, oval plate of fibrocartilage present in several joints which separates synovial cavities. This separation of the cavity space allows for separate movements to occur in each space. Hope this helps :)

There are two types of karyokinesis: mitosis and meiosis. When a nucleus divides by mitosis, how much of the information from the nuclear chromosomes is passed on to the daughter cells

Answers

When a nucleus divides by mitosis, all of the information from the nuclear

chromosomes is passed on to the daughter cells.

Mitosis is a cell division process that results in the formation of two daughter cells during growth processes and in the replacement of worn-out tissues in the body.

The cells produced must have all the information as the cells replicated

have specialized functions which must be passed from parent cells to the daughter cells.

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circle the terms that Apply to the human cheek cell?

1) prokaryote

2)Eukaryote

3) autotroph

4) heterotroph

Answers

Eukaryote is your answer

antibiotics are compounds capable of killing bacteria. how is this a biotechnology?

A. antibiotics are used to kill bacteria, which are alive.

B. antibiotics are used to treat sick humans, and humans are living organisms.

C. antibiotics are viruses that have been deactivated but we're once alive.

D. antibiotics were first isolated from a living origin: mold. ​

Answers

Antibiotics are compounds capable of killing bacteria. This is biotechnology because antibiotics were first isolated from a living origin: mold. ​The correct option is D.

What are antibiotics?

When the body develops a resistance to antibiotics, antibiotic resistance happens. Antibiotic abuse or overuse is what led to antibiotic resistance. When germs develop resistance to medications meant to kill them, it happens.

Because antibiotics are unable to combat bacteria, the bacteria grow and produce illnesses that can result in life-threatening infections, incapacity, or even death.

The overuse or improper use of antibiotics was somehow the cause of all antibiotic resistance. It takes place when the bacteria completely lose their ability to be killed by drugs and instead develop a resistance to them.

Therefore, the correct option is D. antibiotics were first isolated from a living origin: mold. ​

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mixed numbers multiple 4 1/2 x 1 2/3 What does fixation mean in a biology definition? Which of the following is a true statement about the US economy before the Civil War?A-The North had a farm-based economy, while the South had a trade-based economy.B-The South had a farm-based economy, while the North had a trade-based economy.C-Both the North and the South had farm-based and trade-based economies.D-Neither the North nor the South had farm-based or trade-based economies. After the city of _____ was taken over by the Turks, Pope Urban II called for the city to be retaken, and the First Crusade began. Help me with this question pls! Which scenario is most likely to use facilitated diffusion for transport?. Please help _________________ What is the function? what is 53232+10093200920 equal Tyler has $4.50 in a bank in his bedroom. Each day he adds $1.50 to it. Which equation can be used to find out how many days it will take for Tyler to save $30.00? whats 2+2x8-16x18+24 divided by 4+2 equals?lets see if yall smart :)) How much will be in the account after three years What is the paraphrase of Late land of slavery Helppp 15 POINTS!!! HELP ASAP!!!!!Hot Chocolate Sales and Outside TemperaturesSales ($)$100$213$830$679$209$189$1,110$456$422$235$199Temperature (F)9288546285165265688991if you plot this on a scatterplot, would the correlation be strong or weak?? EXPLAIN! ( temperature is x and sales is y) How does the system of federalism limit government power?by dividing powers among the levels of governmentby giving unlimited powers to the federal governmentby allowing each level of government to define its own powersO by making the state governments superior to the national government Do you think poor foreign nations might have been better off under American control? Why? Based on the table above, which group of voters (by age) had the highest percent of Democratic voters in 2008? Lesson 5 Practice Problems1. A restaurant offers delivery for their pizzas. The total cost is a delivery fee added tothe price of the pizzas. One customer pays $25 to have 2 pizzas delivered. Anothercustomer pays $58 for 5 pizzas. How many pizzas are delivered to a customer whopays $80?Be sure to completely explain your answer.When explaining, make it sound like you are talking to a grandma. PLS HELP ME I have more questions but Ill do this first 1.) Lori often takes a taxi instead of taking the bus. On average she takes 3 taxis a week at a cost of $25. The bus would cost her only $6 a week. How much money would she save in one week? HElpppppppppppppppppppp