A farmer tested the soil in a field and found that there was a high nitrate salt concentration. The farmer then grew a crop in this field. After the crop was removed, the soil was tested again.
The nitrate salt concentration had decreased.

(a) Suggest reasons why the nitrate salt concentration had decreased

(b) Some species of plant grow well in soil that is always low in nitrate salt. Explain how
they can obtain a source of nitrogen compounds.

Answers

Answer 1

Answer:

The soil salt geted decereased because the plants in field absorbed salt from soil.

Related Questions

I need to know the rate of the volume change for each section along with the rate of photosynthesis

Answers

Explanation:

25 at under time min. over rate of volume change

What is the difference between a protein and a trait

Answers

Answer:

The Relationship Between Genes, Proteins, and Traits

A gene codes for a particular protein that is involved in the expression of a trait. Characteristics determined by single genes are called Mendelian traits.

A gene is a stretch of DNA on a chromosome that has the instructions for making a protein. Each chromosome has many genes with humans having over 22,000 genes in all. A gene's instructions for a protein are written in the three letter code I referred to before. A protein is a molecular machine that does a specific job.

Explanation:

NOT MY WORDS! I HOPE THIS HELPS!

Genes contain the information that determines traits that are characteristics or features that are given to us or inherited from parents. Each cell in the human body contains about 25,000 to 35,000 genes.

What are Genes?

Genes are defined as the basic units of heredity passed from parent to child that are made up of sequences of DNA and arranged one after the other at specific locations on chromosomes in the nucleus of cells.

Genes are defined as functional units of heredity as they are made up of DNA where as chromosome is made up of DNA which contains many genes. Each gene has a special set of instructions for a particular function or protein-coding. Genes are responsible for heredity.

Thus, Genes contain the information that determines traits that are characteristics or features that are given to us or inherited from parents. Each cell in the human body contains about 25,000 to 35,000 genes.

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The carbon cycle ensures that carbon is not lost. which is another important benefit of the carbon cycle.

Answers

The carbon cycle ensures that living things have a continual source of hydrogen. The carbon cycle helps transport nutrients in bodies of water.

How does variation in the environment affect natural selection?

Answers

Answer:

It effects the way that certain traits in a species evolve in an area due to being better for dealing with the environment more effectively.

Explanation:

This is legit how nature works. Please rate 5 stars.

O points
QUESTION 1
One of the primary concepts of biology is natural selection which is based on the principle of an organism s ability to adapt to their
surrounding environment. This concept also applies to all life on Earth, and it is certainly applicable to people in the workplace as
well. Thinking futuristic, to when you will have established your unique niche in the medical field, what traits do you possess that will give
you the ability to adapt and thrive within your workplace environment? Write a one paragraph well-written answer to the above question to
earn 10 points

Answers

Hi. This question requires a personal answer based on your assessment of your own abilities and qualities. However, I will provide an answer below and hope it serves as a model for you to be able to formulate your own answer.

One of my main characteristics that will be very useful in my work environment is patience. I believe that the medical field requires a lot of patience, as work environments can be very stressful, mainly because you have to deal with the most different types of people. My patience will allow me to work efficiently under pressure and will allow me to deal with the human being without affecting my work. Besides patience, I'm a very agile person. Medical work requires agility, especially when it is related to emergency care, where agility is essential for the patient's health.

The bacterium Salmonella enterica can cause severe food poisoning and the lining of the alimentary canal may be damaged. In these cases absorption of digested food products cannot easily take place. Which region of the alimentary canal is most affected?
A colon B ileum C oesophagus D stomach​

Answers

The duodenum is largely responsible for the continuing breakdown process, with the jejunum and ileum being mainly responsible for absorption of nutrients into the bloodstream. Subsequently the waste moves into the large intestine (large bowel or colon) for excretion through anus

How to deal with extremely hot weather?

Answers

Answer:

Shut windows and pull down the shades when it is hotter outside. ...Avoid the heat: stay out of the sun and don't go out between 11am and 3pm (the hottest part of the day) if you're vulnerable to the effects of heat.Have cool baths or showers, and splash yourself with cool water.

Explanation:

everything can be found in the picture

Your brother recently joined the football team. He feels tired after each days practice and
is unable to continue with his homework. Is there a connection between his tiredness and
nutrition he takes? If yes, give reason, also design a healthy diet plan for him.

Answers

Answer:

from view,I will go with yes because it depends on the food he eats whether it is balanced or not. for example,if he eats only vitamin foods and carbohydrates there won't be enough energy for him go pass the day.

Yes, there is probably a link between your brother's dietary habits and his fatigue level.

Football practice can be a physically taxing and energy-intensive activity. Your brother may feel tired and struggle to maintain energy levels if he is not getting enough nutrition to support his increased energy expenditure. When creating a healthy diet plan for your sibling it is important to focus on providing adequate nutrition to support your sibling's athletic performance and recovery. Here is a dietary recommendation:

Include whole grains (such as brown rice, quinoa and whole wheat bread), fruits and vegetables in your diet to get enough carbohydrates to last you all day.

Include sources of healthy fats, such as avocados, nuts, seeds and olive oil, to help supply essential fatty acids and keep you feeling full.

Hydration: To maintain hydration levels, be sure to consume enough fluids before, during and after exercise.

Snacks: To replenish nutrients and give you energy after exercise, eat healthy snacks, such as yogurt, mixed nuts, fresh fruit and granola bars.

Encourage your sibling to prioritize nutrient-dense foods that offer a balanced balance of carbohydrates, proteins and fats, and to eat frequent meals, especially breakfast.

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 Why is if imporrant to find a location to build your house?

Answers

Explanation:

It's the most important factor when buying real estate. Location matters, even the location inside the neighborhood will have a large impact on your home's value. ... You want to buy on the low end of the neighborhood's price range because the other homes in your neighborhood will bring your value up

Location is the key to valuable real estate. Homes in cities that have little room for expansion tend to be more valuable than those in cities that have plenty of room. Consider the accessibility, appearance, and amenities of a neighborhood as well as plans for development as well.

How does carbon dioxide travel in blood via dissolved form

Answers

Answer:

carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood.

Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate.

The majority of carbon dioxide is transported as part of the bicarbonate system.

Goodluck

Look at the map on the screen. List the region or countries the majority of African elephants inhabit.

Answers

Answer:

we need the picture

Explanation:

why is melting a physical change​

Answers

Answer:

Because melting can be reversed ( freezing )

Explanation:

Physical change is a change that can be reversed


Where is the water table located?
a.10 ft below the surface
b. below the saturated zone
c. A at the top of the saturated zone
d. all of the above

Answers

Answer:

c. A at the top of the saturated zone.

What bacteria was the first one on the Earth?

Answers

Answer:

anaerobic heterotrophic bacteria

Explanation:

Cyanobacteria, also known as blue-green algae, started out on Earth quite a while ago. Possible fossil examples have been found in rocks that are around 3500 million years old, in Western Australia. and make me brainlist

Question: Using your understanding of the 4 macromolecules explain how Earth’s early atmosphere and the 4 molecules taught could lead to the formation of life on Earth. Using your understanding of the 4 macromolecules justify the scientific theory of how life began on Earth. Include a timeline of which macromolecules formed first. Provide scientific evidence, chemical properties of the atoms found in the Earth’s early atmosphere, atoms found in the macromolecules, to support your timeline.

Answers

Answer:

Advanced forms of life existed on earth at least 3.55 billion years ago. In rocks of that age, fossilized imprints have been found of bacteria that look uncannily like cyanobacteria, the most highly evolved photosynthetic organisms present in the world today. Carbon deposits enriched in the lighter carbon-12 isotope over the heavier carbon-13 isotope-a sign of biological carbon assimilation-attest to an even older age. On the other hand, it is believed that our young planet, still in the throes of volcanic eruptions and battered by falling comets and asteroids, remained inhospitable to life for about half a billion years after its birth, together with the rest of the solar system, some 4.55 billion years ago. This leaves a window of perhaps 200-300 million years for the appearance of life on earth.

divine interventionThis duration was once considered too short for the emergence of something as complex as a living cell. Hence suggestions were made that germs of life may have come to earth from outer space with cometary dust or even, as proposed by Francis Crick of DNA double-helix fame, on a spaceship sent out by some distant civilization. No evidence in support of these proposals has yet been obtained. Meanwhile the reason for making them has largely disappeared. It is now generally agreed that if life arose spontaneously by natural processes-a necessary assumption if we wish to remain within the realm of science-it must have arisen fairly quickly, more in a matter of millennia or centuries, perhaps even less, than in millions of years. Even if life came from elsewhere, we would still have to account for its first development. Thus we might as well assume that life started on earth.

How this momentous event happened is still highly conjectural, though no longer purely speculative. The clues come from the earth, from outer space, from laboratory experiments, and, especially, from life itself. The history of life on earth is written in the cells and molecules of existing organisms. Thanks to the advances of cell biology, biochemistry and molecular biology, scientists are becoming increasingly adept at reading the text.

An important rule in this exercise is to reconstruct the earliest events in life's history without assuming they proceeded with the benefit of foresight. Every step must be accounted for in terms of antecedent and concomitant events. Each must stand on its own and cannot be viewed as a preparation for things to come. Any hint of teleology must be avoided.

The diploid number for the tasmanian devil is.

Answers

Answer:

14.

Explanation:

A Tasmanian Devil has a diploid number of chromosome which is 14 while on the other hand, there are 7 number of chromosomes in the sex cells. The sex cells i.e. sperm and egg has haploid number of chromosome so the number of chromosomes in sex cells of Tasmanian Devil is 7 while on the other hand, in the somatic cells or body cells there is diploid means double number of chromosome so the diploid number of chromosome for Tasmanian Devil is 14.

Which of the following best describes the relationship between human population size and resource use?
Countries with high populations are likely to use more resources.
Countries with high populations are likely to use fewer resources.
Countries with low populations are likely to use more resources.
There is no correlation between population size and resource use.

Answers

Answer:

countries with higher populations are likely to use more resources

Explanation:

The vastness of the threats to the ecosystem is directly linked to human population size and resource uses per person. Resource use, waste production and environmental degradation are accelerated by population growth.

The relationship between human population size and resource is that Countries with high populations are likely to use more resources.

What is population size?

Population size is refers to the total number of people that are living together in a place or people occupying a territory, state, town or country. The higher the population size, the higher the number of resources that will be needed and use.

Therefore, The relationship between human population size and resource is that Countries with high populations are likely to use more resources.

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The specific heat of a substance is a measure of how much energy is required to raise
the ______
one degree per one unit of mass.

Answers

The specific heat of a substance is a measure of how much energy is required to raise the TEMPERATURE on degree per one unit of mass.

Organism Clue
body
cell
1
a gamete of a housefly has 6
chromosomes
Haploid or Diploid

Answers

Answer:

Diploid

Explanation:

wrong question actually...

Heat Transfer Mechanisms 1.In your own words, using the pennies activity, define the three different heat transfer mechanisms. Your definitions should include:
(i) information about how energy is moving
(ii) what is happening microscopically (that is, at the atomic level)
(iii) what phase(s) of materials is usually involved.

Answers

Answer:

The three modes of heat transfer are: 1) Radiation 2) Convection 3) Conduction

Explanation:

RADIATION:

It is the mode of heat transfer which requires no medium because the transfer of energy takes place in the form of electromagnetic radiations. The spectrum of radiations that contribute to the heat transfer via radiation is the wavelength ranging from 0.1 μm to 100 μm.

For example the heat from the sun reaches the earth via radiation that passes through space and then through the atmosphere of the earth.

CONVECTION:

It is the mode of heat transfer that takes place in a fluid matter. The molecules in this case move from one place to another due to the difference in density developed as a result of heat absorption.

Example, the boiling of water. When the water in a utensil is heated, the heat is supplied at the bottom. In such a case the molecules of the water absorb the heat resulting in increased intermolecular spacing and hence the water at the bottom becomes the least dense in the bulk of water mass in the utensil hence rises up at to the free surface of the fluid mass. Then the densest mass of the fluid occupies the bottom space and is heated by the heat source supplied. This chain continues.

CONDUCTION:

This is the process of heat transfer from one molecule to the next neighbouring molecules. The propagation of heat energy occurs in a sequential manner starting from the molecule nearest to the heat source. The microscopic phenomenon happens in the form of lattice vibrations that are responsible for the transfer of heat energy via conduction.

Example, while heating of a pan the base heats up at first being continuously exposed to heat whereas the handle of the pan being far away from the source heats up after a long time.

Where are the photoreceptors located Inside a human eye?

Answers

Answer:

○They are located in the retina.

The type of cell in your eye that

 detects photons and sends them to 

your brain. 

They are found in the retina (the back layer of the eye). Rods and cones are 

the two types.

---------------------

☆HOPE IT HELPS....

☆HAVE A GREAT DAY!!!

Discuss the nature and merits of data response questions in Life/Natural Science​

Answers

Data are fundamental in Life/Natural Science because they can help us to answer hypotheses.​

What is a hypothesis?

A hypothesis is a given explanation about a phenomenon observed from a question from the real world.

Data obtained from experimental and observational procedures helps to reject or confirm hypotheses.

In conclusion, data are fundamental in Life/Natural Science because they can help us to answer hypotheses.​

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g Two closely related species of plant (A and B) hybridize to form a new species (C). Species A is diploid and has 8 chromosomes. Species B is tetraploid and has 20 chromosomes. -What type of whole genome duplication is this (autopolyploidy or allopolyploidy)

Answers

Answer:

allopolyploidy

Explanation:

Polyploidy is the condition by which a cell might have more than two chromosome sets that form homologous pairs. It might occur due to a failure or abnormality in cell division.  

Autopolyploidy

Refer to a type of polyploidy in which an organism has more than two copies of homologous chromosomes. It results from the duplication of a group of chromosomes of the same species. Autopolyploid individuals have at least three groups of homologous chromosomes. Autopolyploidy is produced by the gamete fusion of the same progenitor - same species-, duplicating the number of chromosomes of diploid species. The autopolyploid cell has groups of homologous chromosomes. Autopolyploidy is produced mainly due to non-disjunction during meiosis.

Allopolyploidy

Refer to another type of polyploidy in which species have more than three sets of chromosomes in their cells. Allopolyploidy occurs when two different species mate, leading to the fusion of gametes that belong to different species and produce a new hybrid. The chromosomic complement has more than two copies of chromosomes. The hybrid is infertile with the parental species. The allopolyploid cells have chromosome groups that are not homologous.  

In the exposed example two different species mate and produce a hybrid species.

Please help me I beg youuuuuuu!!!
Can you please give me an environmental risk or benefit for artificial selection?

Answers

Explanation:

Risks:

may lead to a lack of variety in plant or animal species

The nutritional value of foods can be less

Benefits:

faster than natural selection

More selective breeds / Types

how does the energy from the sun cause evaporation

Answers

Answer:

In the water cycle, evaporation occurs when sunlight warms the surface of the water. The heat from the sun makes the water molecules move faster and faster, until they move so fast they escape as a gas. ... When it is cool enough, the water vapor condenses and returns to liquid water.

What gland produces an iodine-containing jormone

Answers

Thyroid Gland produces an iodine-containing hormone

Answer:

thyroid gland

Explanation:

internally, the glands consists of follicles, which produce thyroxine and triiodothyronine hormone. These hormones contain iodine.

What are the measures of <1 and <2 Show your work or explain your answers.

Answers

Answer:

<1=105 <2=75

Explanation:

So 2 is 75 degrees because it's corrosponding with <6.

75+<1=180

-75       -75

<1=105

What do mammals like tigers and zebras need energy for?

Options:

A. Running

B. Breathing

C. Digesting food

D. All of above

Answers

Answer:

d. all of the above

Explanation:

tigers and zebras both have activities that they're limited to by each species. But both of them do all that was listed, and running, breathing and digesting all take the body's energy to do.

Answer:

D

Explanation:

they both need the energy to do that

What is Newton’s law of universal gravitation ?

Answers

Newton's law of universal gravitation states that every object in the universe attracts every other object

Answer:

Every body on earth attracts every other body. with a force. which is directly proportional to product of their masses and inversely proportional to square of distance between them.

Ari drew a diagram to show organisms in an ecosystem.

A flowchart. Cycle 1: 1, Grass. 2, Grasshopper. 3, Shrew or Mouse. 4, Fox. Cycle 2: 1, Grass. 2, Mouse. 3, Fox or Snake. Cycle 3: 1, Grass. 2, Rabbit. 3, Fox.

What did Ari draw?

a food chain
a trophic chain
a food web
an energy web

Answers

Answer: Ari draw a food web.

Explanation:

A single ecosystem which contains all the food chains is called a food web.

In a food web each living thing present in a food web is a part of multiple food chains. Hence, food webs tend to represent the overlapping of food chains in that ecosystem.

The flow chart drawn by Ari represents that the living things present in cycle 1 are part of cycle 2 and cycle 3. Also, living things present in cycle 2 are part of cycle 1 and cycle 3.

A food chain is basically a single path where each organism is dependent of the other as a source of food without any overlapping.

Thus, we can conclude that Ari draw a food web.

Answer:

c

Explanation:

Other Questions
plz help answer for me Please help, only answer if your 1000% correct im in summer school and need to pass this classAction reaction forces never cancel each other out because .............................? *1 pointthey do not act on objects.they act on the same objectsthey act on different objects.none of the aboveA force can be described as? *1 pointpush or pull actionpulling directiondirection of changepush action onlyUsing EquatIO calculate the resultant force for the horizontal (x-axis) component. Show your calculation step. *2 pointsCaptionless ImageA player hits a baseball with a bat. The action force is the impact of the bat against the ball. The reaction force is .......................? *1 pointCaptionless Imagethe grip of the player's hands on the ballthe weight of the ballthe air resistance of the ballthe force of the ball against the batWhich law is this? "An object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon by an unbalanced force." *1 pointNewtons third lawNewtons second lawNewtons first lawNone of the aboveWhich law is this? "If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A." *1 pointNone of the aboveNewtons second lawNewtons first lawNewtons third lawWhat can be said about a force on an object that is not stationary? *1 pointCaptionless Imagethere are no forces acting on the objectthere are unequal forces acting on the objectthere is only one force acting on the objectthere are equal and opposite acting on the objectUsing EquatIO calculate the resultant force for the vertical (y-axis) component. Show your calculation step. *2 pointsCaptionless ImageIdentify the different force acting on a moving vehicle shown in the mage below. *5 pointsCaptionless ImageA B C D EReaction force Weight Friction Air resistance Thrust Reaction force Weight Friction Air resistance Thrust Which law is this? "The acceleration of an object is directly related to the net force and inversely related to its mass." *1 pointNone of the aboveNewtons third lawNewtons first lawNewtons second lawIf forces acting on an object are unbalanced, what can occur to the object? *1 pointaccelerationall of the abovechange of shapedecelerationchange in directionIf a player hits a baseball with a force of 870N Calculate the acceleration (state the units) of the ball . Show your calculation step using only EquatIO. *2 pointsCaptionless ImageAction reaction forces never cancel each other out because .............................? *1 pointthey act on different objects.none of the abovethey act on the same objectsthey do not act on objects. Find the mode of the data.Weight (in ounces) of puppies in litter:17, 15, 19, 18, 17, 16, 22Mode: [?] ozEnter The change in the circled offsprings genotype was caused by a mutation. A mutation is a change in a gene. Mutations happen when a mistake is made when a cells chromosomes are copied. How might mutations introduce variation into a population? EXPLAIN Which replacement for funny has the most negative connotation?A. HumorousB. ComicalC. HilariousO D. Ridiculous Hi guys pls answer this its easy tbh Find the area of this triangle.17 cm10 cm8 cm21 cmA = [ ? ] cm2 Between 1801 and 1851, Manchester's population increased by about.In the 1800s, Manchester's population increased because people were moving fromareas toareas. Imagine you have a friend who is interested in math and techniques used to analyze research findings. What subfield of psychology best matches this persons interests?A.psychometric psychologyB.developmental psychologyC.health psychologyD.personality psychology offline schools explanation for power point explanation Solve[tex](6+v)(5v+4)=0[/tex] lines a and b are parallel m ngKellen is saving for retirement. He deposits $325 each month at 3.2% annual interest for 20 years. According to hiscalculations, at the end of 20 years he should have $109, 061.81 in his account. How much of this did Kellencontribute and how much of this is interest? Which valley was used for trade with Central Asia over the Silk Road Arabic Social StudiesA Chitral ValleyB Greiti ValleyC Crendal Valley D Marsk Valley HELPPPPPPPP!!!!! PLZZZ Find the values of a and b that make the second expression equivalent to the first expression. Assume that x > 0 and y 0. 6x - 5y= 707x + 2y=66 I need a answer in words step by step please help!! diary to express your feeling before you received the news that you are about to be moved from your home what is fiscal policy You are going to Europe for vacation and must exchange your money. The exchange rate of Euros toDollars is a proportional relationship. At the Exchange Counter you exchanged 500 dollars and received375 euros. In the problem above we found that the unit rate described the number of Euros in a Dollar. Now find the exchange rate for Dollars to Euros.