energy, protein, phosphorus, sodium and vitamin a are the most limiting nutrients of grazing livestock. t/f

If 30 grams of ammonia (NH3), nitrite (NO2-), and nitrate (NO3-) are added to a soil sample and nitrite-nitrifying bacteria are added, the concentration of the nitrate would increase, that of the nitrite would decrease, while that of ammonia would remain the same.

The process of converting ammonia to nitrate, also known as nitrification occur in two stages:

Now, if nitrite-nitrifying bacteria is added to the soil sample above, it means that only the nitrite would be converted to nitrate. The bacteria will not be able to oxidize ammonia.

Hence, some of the nitrite would be converted into nitrate leading to the reduction in the concentration of the former, and an increase in the concentration of the latter. The concentration of ammonia will remain unchanged.

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Answer:

The answer is C.

Explanation:

I just took the test and it was right.

Explanation: During endocytosis (endo means inside) a cell will use its cell membrane to engulf an object which is outside of the cell. This process takes effort by the cell, so it needs to use energy (ATP!) The process which is the reverse of endocytosis is exocytosis (exo means outside - think exit).

Answer:

Endocytosis and exocytosis are active transport mechanisms in which large molecules enter and leave the cell inside vesicles. In endocytosis, a substance or particle from outside the cell is engulfed by the cell membrane. The membrane folds over the substance and it becomes completely enclosed by the membrane.

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Answer:

its A/F

Explanation:

A sample of human DNA is made up of approximately 30% adenine. The quantity of cytosine found in human DNA will be  20%. The correct option is B.

DNA base pairing is the pairing or joining of DNA bases to each other with hydrogen bonds. There are four types of bases present in DNA. They are adenine, thymine, cytosine, and guanine.

Adenine pairs with thymine with double hydrogen bonds and cytosine joined with guanine with triple bonds of hydrogen. The pairing between these base pairs is alternated in the sequence of DNA.

According to the base pairing rule. There will be 100% of these bases present together. So if there is 30% adenine, there will be 30% thymine. The total becomes 60%. Now remain is 40%. So there will be 20 % cytosine and 20% guanine.

Thus, the correct option is B 20%.

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Answer:

it is an observation

About 70% of antibiotics are given to animals used for human consumption in the United States and Europe.The overuse and misuse of antibiotics in livestock production have contributed significantly to antibiotic resistance and threaten human health.

It is a common practice to administer antibiotics to farm animals to protect them from diseases, prevent the spread of illnesses, and promote growth. This practice is also beneficial to farmers because it can increase the productivity of their herds.However, the continuous use of antibiotics can lead to the development of antibiotic-resistant bacteria in animals, which can be transmitted to humans through food, the environment, or direct contact.

According to the Centers for Disease Control and Prevention (CDC), more than 2.8 million antibiotic-resistant infections occur in the United States each year, causing more than 35,000 deaths. Similarly, in Europe, approximately 25,000 people die each year due to antibiotic-resistant infections. In the United States and Europe, around 70% of antibiotics are given to animals used for human consumption, which has raised concerns about the development of antibiotic resistance.

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Answer:

Hello maam :)

Explanation:

wat the other guy said

In the frog, the two accessory digestive organs that release compounds into the duodenum through the bile duct are the liver and the pancreas.

The liver produces bile, which is stored in the gallbladder and released into the duodenum through the bile duct.

The pancreas also releases digestive enzymes into the duodenum through the bile duct. These enzymes include lipases for fat digestion, amylases for carbohydrate digestion, and proteases for protein digestion.

Together, the liver and pancreas release compounds into the duodenum through the bile duct, contributing to the efficient digestion and absorption of nutrients in the small intestine.

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Ectoprocts, phoronids, and brachiopods are all grouped together because they possess a unique feeding structure known as a lophophore.

A lophophore is a circular or horseshoe-shaped structure that surrounds the mouth and is lined with ciliated tentacles used for filter feeding.

The three groups are all aquatic and have a sessile lifestyle, meaning they attach themselves to a substrate and do not move around freely. Ectoprocts are commonly known as "moss animals" and form encrusting colonies, while phoronids are tube-dwelling animals that burrow into sediments.

Brachiopods are shell-bearing organisms that resemble bivalve mollusks but have a different anatomy. Despite their similarities in possessing a lophophore, these three groups have distinct morphological and ecological differences.

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The correct answer choice from the statement above is:

Homeostasis is the the maintenance of a steady internal environment of an organisms.

Option B is the correct answer

Hormones are chemical messengers or substances which are produced by the endocrine glands and released to the sites of action where they are needed.

Below are few examples of some hormones which also help in homeostasis:

So therefore, the correct answer choice from the statement above is:

Homeostasis is the the maintenance of a steady internal environment of an organisms

Complete question:

Which of the following statements best describes homeostasis. Simply put a b or c its not that hard

a. Homeostasis is regulation of external environment

b. Homeostasis is the maintenance of a steady international environment of an organisms

c. Homeostasis is movement of molecules from a region of higher concentration to a region of lower concentration

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Answer: common iliac vein, great sphanous, inferior vena cava

Explanation:

Answer:

A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water (H2O). This is a dehydration synthesis reaction (also known as a condensation reaction), and usually occurs between amino acids.

Explanation:

Peptide bonds are- Any reaction that combines two monomers in a reaction that generates H2O as one of the products is known as a dehydration reaction, so peptide bond formation is an example of a dehydration reaction.

Answer:

water is a molecule which will be made

ater pollutants can be classified as organic pollutants, inorganic pollutants, pathogens, suspended solids, nutrients and agriculture pollutants, thermal, radioactive, and other pollutants.

Answer:

1- Heat -- B. Physical agent

2- Parasitic worm -- F. Pathogen

3- Animal feces -- D. Organic matter

4- Household cleaners (drain-O and bleach) -- E. Organic chemical

5- Light fluid -- D. Organic matter

6- Arsenic -- C. Heavy metal

Answer:

8. respiratory system

9.circulatory system

10.digestive system

11. circulatory system

12. e.coli, pro-biotic bacteria/enzymes

Explanation of 12:

Lactic acid bacteria and Bifidobacteria are two important types of gut bacteria, which are autochthonous ones from birth or acquired from digested food. Lactobacillus and Leuconostoc spp. are the main lactic acid bacteria found in the human intestine.

By diffusion and osmosis removing their wastes and supplying them with useful substances help amoebas in survive.

Human existence depends on diffusion and osmosis because they enable cells to passively absorb nutrients and expel waste. This is due to the fact that osmosis and diffusion both entail the net movement of molecules along concentration gradients and as a result, they don't need any energy input to proceed.

Amoeba is assisted in surviving by diffusion and osmosis, which remove their waste and provide them with nutrients. Osmosis and diffusion are both passive processes, meaning they don't need the energy to work.

The maximum size that a single cell may grow to is constrained by diffusion, which only works over a certain distance. Any food and waste requirements of a single-celled microbe, such as an amoeba, may be met through diffusion.

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The direction of transport in facilitated  diffusion is always down a concentration gradient, from one side of the membrane where the substrate concentration is high to the other side of the membrane where the concentration is lower.

Define concentration gradient.

When the concentration of particles is higher in one area than another, a concentration gradient occurs.

Molecules travel passively along the concentration gradient through a process known as facilitated diffusion. The membrane only permits certain molecules and ions to pass across it, making it a selective process. But it blocks other molecules from getting past the barrier.

Since the movement is downhill (i.e., from higher to lower concentrations), chemical energy is not directly needed. Like other forms of passive transport, facilitated diffusion is propelled by kinetic energy. However, what distinguishes facilitated diffusion from the other passive transport mechanisms is the requirement for help from a transport protein anchored in the plasma membrane.

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Naturally acquired active immunity is the form of immunity that develops after getting the mumps and recovering from it.

Natural immunity is built up through exposure to the disease-causing agent and subsequent disease-related illness. Through vaccination, a dead or compromised version of the disease organism is introduced, resulting in the development of vaccine-induced immunity.

Children who are not inoculated and contract the measles recover from their illness because their bodies have established a successful defense against the virus.

Therefore, immunity results from recovery from mumps.

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In my experience the answer would be:

"In an ethical argument, some people argue that human embryonic cells should be protected."

Because as with abortion, the general idea is that stem cells or embryos have life and must be protected. Therefore, there are many people against stem cell therapies. However, in the scientific community, stem cells are not considered conscious organisms.

Answer:

Your lymphatic system, part of your immune system, has many functions. They include protecting your body from illness-causing invaders, maintaining body fluid levels, absorbing digestive tract fats and removing cellular waste. Blockages, diseases or infections can affect your lymphatic system's function.

Explanation:

Answer:

Your lymphatic system, part of your immune system, has many functions. They include protecting your body from illness-causing invaders, maintaining body fluid levels, absorbing digestive tract fats and removing cellular waste. Blockages, diseases or infections can affect your lymphatic system's function.Feb 23, 2020

The lymphatic system is our body's 'sewerage system'. It maintains fluid levels in our body tissues by removing all fluids that leak out of our blood vessels. The lymphatic system is important for the optimal functioning of our general and specific immune responses.Mar 31, 2012

Functions of the Lymphatic System

The removal of excess fluids from body tissues. ...

Absorption of fatty acids and subsequent transport of fat, chyle, to the circulatory system.

Production of immune cells (such as lymphocytes, monocytes, and antibody producing cells called plasma cells).

What are the functions of the Lymphatic System? To transport fluids back to blood and act as the bodies defense and resistance to disease.

use what you need

Explanation:

Answer:

A)  all living things are made of cells.

Answer:

All living things are made of cells

Answer:

1.it's beak is pointed and  slightly curved at pointed

2.it's upper part is brown and lower part is white

3.it's legs is black

Explanation:

Which is an environmental factor that affects skin color in humans?

O number of genes inherited

O amount of sunlight absorbed

O number of linked genes

O amount of food consumed

AMOUNT OF SUNLIGHT ABSORBED.

SO ACCORDING TO ABOVE DETAILS WE CAN CONCLUDE (2) AMOUNT OF THE SUNLIGHT IS THE ENVIRONMENTAL FACTOR WHICH IS RESPONSIBLE FOR THE COLOR OF THE SKIN IN HUMANS

Answer:

6 protons 6 neutrons and 6 electrons negative and postive both charges are shows

Answer:

The red and gray orbs in the middle are protons (positive charge) and neutrons (no charge)

the blue orbs surrounding the protons and neutrons are electrons (negative charge)

Answer:

c

Explanation:

To be regarded as safe, a sewage system must decompose human waste. Therefore, the correct option is C.

Sewage is used water with solids that go down the drain from bathrooms, kitchens, and laundries. Most sewage includes human excreta (feces and urine) and toilet paper. There are many methods for treating sewage that are in use around the world.

To purify water, a sewage treatment plant removes impurities and contaminants. Sewage treatment is the process of purifying sewage that comes from domestic, municipal, and industrial sources.In developing countries, sewage is often disposed of in various ways, including open defecation, septic tanks, pit latrines, and simple pit toilets, among other methods.

While sewage is considered to be a pollutant, it can be used to produce biogas, a type of renewable energy, using anaerobic digestion.

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Answer:

It would be 100% purple flowers because 4 quarters equals 1.00 and it would be 50% white flowers because 2 quarters equals 50

If the long-haired parent cat is homozygous recessive (ll), the second parent must be heterozygous (Ll) for long hair.

Based on the given information, we know that one of the parent cats is long-haired (with a recessive allele). From the resulting kittens, we can deduce that there are two short-haired kittens and three long-haired kittens.

To find the genotype and phenotype of the second parent cat, we can use Punnett squares to perform genetic crosses. Since the long-haired trait is recessive, we can represent it with a lowercase letter (e.g., "l"), and the short-haired trait with a capital letter (e.g., "L").

If we assume that the genotype of the first parent cat is "ll" (since it is long-haired), we can set up the following Punnett square:

      l      l
L    Ll     Ll

In this Punnett square, we cross the long-haired parent ("ll") with an unknown genotype. We find that all the resulting kittens are long-haired, which suggests that the second parent cat must be heterozygous for the trait.

Therefore, we can conclude that the genotype of the second parent cat is "Ll." This means that it carries both the long-haired allele ("l") and the short-haired allele ("L").

As for the phenotype of the second parent cat, it would be short-haired since the short-haired allele ("L") is dominant. However, since the second parent cat carries the long-haired allele ("l") as well, it can pass on this trait to its offspring.

In summary, the genotype of the second parent cat is "Ll," and its phenotype is short-haired. However, it carries the long-haired allele and can pass it on to its offspring.

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Answer: A-U-G-C-U-A-A-U-A-C-A-G-U-A-G

Explanation:

The next step in the process after heating the DNA to separate its two strands is typically referred to as "annealing" or "primer annealing."

In this step, the researcher adds short DNA primers that are complementary to specific regions on the separated DNA strands.

The primers are designed to bind to the DNA sequences of interest and provide a starting point for DNA replication or amplification. They are typically around 18-25 nucleotides long and are synthesized to match the target DNA region's sequence.

Once the primers are added to the DNA solution, the temperature is lowered to allow the primers to bind (anneal) to their complementary sequences on the DNA strands. The annealing temperature is typically optimized based on the melting temperature (Tm) of the primers to ensure specific and efficient binding.

The annealing step is crucial because it enables the primers to establish a stable base-pairing interaction with their complementary DNA sequences, providing a template for DNA replication or amplification.

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Answer:

The small intestine

Explanation:

About 95% of all nutrient molecules are absorbed in the lower part of the small intestine called the jejunum.