which statement describes the primary difference between centrally acting muscle relaxants and direct-acting antispasmodics?

This process of electron acceptance is known as oxidation-reduction (or redox) reactions.

Oxidation-reduction (or redox) reactions are a type of chemical reaction in which electrons are transferred between two different molecules. The molecule which accepts the electrons is known as the oxidizing agent, and the molecule which donates the electrons is known as the reducing agent.

During redox reactions, energy is released in the form of heat, light, and sound, and this energy is captured by cells to produce ATP, the molecule which provides energy to the cell. Redox reactions involve the breaking of chemical bonds and formation of new ones, resulting in the creation of new molecules. This process is essential for the production of energy and is used by cells to fuel all of their metabolic processes.

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b1) No. b2). Nonsense mutation. It is same amino acid. While mutations always result in a change in the DNA sequence, they do not necessarily have noticeable impact on organism or alter resulting protein.

Since most amino acids can be encoded by two or more distinct codons, this is possible. For instance, the DNA sequences CAA and CAG both code for the amino acid valine. Hence, a valine would still be added to the protein even if the DNA sequence underwent a substitution mutation and changed from CAA to CAG.

A nonsense mutation is a type of point mutation that creates a stop/nonsense codon, thereby shutting down translation. Because doing so would result in the early production of a truncated or ineffective protein.

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The migration of Mormons to Utah would be an example of what type of founder effect genetic drift

Founder Effect refers to a process that occurs when a small subset of the original population becomes geographically isolated from the majority of the population.

Due to their geographic distance from the rest of the population, this subset of people breeds only among themselves, causing the frequency of certain genetic traits to be more common in this isolated population than in the larger population as a whole.In the case of the Mormon migration to Utah, the founder effect is observed.

When the Mormons first migrated to Utah, they were a small group that settled in a new area. They had limited interaction with the rest of the population, which means that genetic traits that were more common among Mormons were more common in Utah's population over time.

This is known as the founder effect.The bottleneck effect is a situation in which a significant portion of a population is destroyed, resulting in a decrease in the genetic variability of the population. In contrast, founder effect is caused by the isolation of a small group of people from the larger population.

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Release of cellular material stored in membrane-bound vesicles to the outside of the cell is an example of exocytosis.

Exocytosis is the process in which materials stored within a cell's vesicles are released outside of the cell. This process is essential for the growth and maintenance of cells, as it allows for the transportation of materials that cannot pass through the cell membrane.

During exocytosis, vesicles in the cell membrane fuse with it, releasing the vesicular contents outside of the cell. This process is an essential part of the endomembrane system, which consists of the nuclear envelope, endoplasmic reticulum, Golgi apparatus, and lysosomes.

The endomembrane system helps synthesize proteins, lipids, and other cellular materials in the cell. Exocytosis is also used to transport materials into the cell, and it is used in many processes, including nerve impulse propagation, release of hormones and neurotransmitters, and secretion of saliva and digestive juices.

Exocytosis is a complex and highly regulated process, involving several steps including formation of vesicles, transport of vesicles to the cell membrane, and fusion of the vesicles with the membrane. In conclusion, release of cellular material stored in membrane-bound vesicles to the outside of the cell is an example of exocytosis, a process that is essential for the growth and maintenance of cells.

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From the given options d.partial pressure gradient determines the direction of respiratory gas movement

The partial pressure gradient of the gases is what drives the flow of respiratory gases like oxygen and carbon dioxide between the lungs and blood as well as between the blood and tissues. The pressure that a gas would apply if it were the only gas in the volume that the other gases are occupying is known as the partial pressure of a gas.

The partial pressure gradient, which applies to respiratory gases, is the variation in the partial pressure of the gas between two places, such as between the blood and the tissues or between the blood and the alveoli of the lungs. Until the partial pressures are equal, respiratory gases always migrate down their partial pressure gradient from an area of higher partial pressure to an area of lower partial pressure.

Complete Question:

which of the choices below determines the direction of respiratory gas movement?

a. the temperature solubility in water

b. molecular weight

c. size of the gas molecule

d. partial pressure gradient

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The protective group is removed to allow the addition of nucleotides to the probe on the DNA chip by: a process called Deprotection.

This process typically involves the use of a chemical or enzymatic reagent, such as hydrogen bromide, hydrazine, or an acid. The specific reagent used will depend on the type of protective group and will result in the release of the nucleotide from the protective group and the formation of an activated nucleotide ready for use.

Once the protective group has been removed, the nucleotide can be added to the probe on the DNA chip, allowing for the successful detection of the target.

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Antibiotics that interfere with the synthesis of RNA or proteins (such as tetracyclines and macrolides) are particularly effective at eliminating bacterial infections without harming the patient because they target the specific components of bacterial cells that are not found in human cells.

In particular, they target the bacterial ribosome, a cellular organelle responsible for translating the genetic code into proteins. By blocking the ribosome's ability to make proteins, these antibiotics effectively stop the bacteria from reproducing, thus eliminating the infection. This approach is effective because human cells do not have ribosomes, and so are not affected by the antibiotics.

In addition, some antibiotics specifically target bacterial RNA and stop the bacteria from producing essential proteins that they need to survive. This again reduces the bacterial population and clears the infection, without harming the patient.

Overall, antibiotics that target the synthesis of proteins and RNA are an effective way to clear bacterial infections without harming the patient. They work by targeting components of the bacterial cell which are not found in human cells, so do not cause any harm to the patient.

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During translation, the mRNA, which is produced by transcription, is used as a template for the production of a particular protein. Amino acids, the building blocks of proteins, are also found in the cytoplasm of the cell.

Translation occurs in the ribosomes, which are made up of ribosomal RNA and a variety of proteins. Most amino acids are created in the cytoplasm from the breakdown of other molecules, such as glucose or fatty acids.

Amino acids are also taken up from the extracellular environment. After they are taken up, they are modified, assembled, and/or stored as necessary. The proteins produced by the ribosomes are then exported out of the cell or incorporated into other cellular structures.

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The life cycle of a human begins with the production of gametes by meiosis and the consecutive growth of the organism because of mitosis.

Meiosis is a cell division process that occurs in sexually reproducing organisms. It occurs in the reproductive organs of animals, the ovaries in females and the testes in males, and in the reproductive structures of plants. Meiosis is a process that reduces the number of chromosomes in a cell by half in preparation for fertilization.

Mitosis is the process by which a cell divides to produce two identical daughter cells. Mitosis is a fundamental process in the growth and development of multicellular organisms. During mitosis, the cell's nucleus divides, and the chromosomes are separated into two identical sets of chromosomes, each in its own nucleus. Mitosis plays a significant role in the growth and development of multicellular organisms.

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1. **Order for Photosynthesis:** Photosynthesis is a complex process that requires several inputs for it to occur. Chlorophyll in the plant's leaves absorbs sunlight, which is then converted into energy. Water is taken up by the roots and transported to the leaves where it is used to create energy. Carbon dioxide is absorbed from the air and combined with the energy from sunlight and water to produce glucose, a type of sugar that is used as food by the plant.

2. **Outputs for Human Survival:** Plants play a crucial role in human survival, providing us with a variety of essential outputs. One of the most important outputs is oxygen. During photosynthesis, plants release oxygen into the air as a waste product. This oxygen is then breathed in by humans and other animals, allowing us to survive. In addition to oxygen, plants also produce a variety of foods that are essential for human survival, such as fruits, vegetables, and grains. These foods provide us with the nutrients we need to stay healthy, and they also form the basis of many of our diets.

3. **Chemosynthesis vs. Photosynthesis:** While photosynthetic producers are the most common type of producers, there are other organisms that carry out a similar process called chemosynthesis. Chemosynthetic producers are bacteria that use chemicals instead of sunlight to produce food. They are typically found in extreme environments, such as deep sea vents, where there is no sunlight available. Because they do not rely on sunlight, they can survive in areas where photosynthetic producers cannot. However, chemosynthetic producers are not a good food source for humans because they produce organic compounds that are not digestible by humans. Photosynthetic producers, on the other hand, are able to produce food that is digestible by humans and other animals, making them a more valuable food source for us.

Answer:

Explanation:

If we want to grow plants on another planet, we will need to provide them with the necessary conditions for photosynthesis to occur. This includes providing them with an adequate amount of light, water, and nutrients, as well as ensuring that the temperature and atmospheric conditions are suitable for their growth. If any of these conditions are not met, the plants may not be able to carry out photosynthesis effectively, which could impact their growth and survival.

Plants are a crucial source of food, oxygen, and other resources needed for human survival. They produce oxygen through photosynthesis, which is essential for human respiration. They also provide food in the form of fruits, vegetables, grains, and other plant-based products, which contain essential nutrients such as carbohydrates, proteins, vitamins, and minerals that are needed for human health. Additionally, plants play a crucial role in maintaining the Earth's ecosystem by regulating the carbon cycle and providing habitats for other organisms.

Producers that carry out chemosynthesis differ from photosynthetic producers in that they do not rely on light energy to produce organic compounds. Instead, they use energy from chemical reactions to convert inorganic compounds into organic compounds. Chemosynthetic producers are often found in extreme environments such as deep-sea hydrothermal vents or acidic soils, where the conditions are not suitable for photosynthesis. As a possible food source, chemosynthetic producers may have different nutritional profiles compared to photosynthetic producers, as they may contain different types and amounts of organic compounds. However, their potential as a food source for humans would depend on their availability and the feasibility of cultivating them for human consumption.

The Delta F508 mutation in the CFTR gene is the most common cause of cystic fibrosis. This mutation involves a small deletion of three nucleotides (TGG) in the CFTR gene, resulting in a single point mutation. This mutation leads to the deletion of one amino acid, phenylalanine, from the CFTR protein, resulting in an inability to transport chloride ions across the cell membrane.

This deletion results in a change in the CFTR protein structure and ultimately an inability to transport chloride ions across the cell membrane. This abnormality leads to the buildup of thick, sticky mucus in the lungs and other organs, as well as other symptoms of cystic fibrosis.

In order to create this Delta F508 mutation, three nucleotides of the DNA must be deleted from the gene. Specifically, a TGG triplet must be removed from the DNA strand, resulting in a single point mutation in the CFTR gene.

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My approach to investigating the functions of osteocalcin would involve a combination of molecular and cellular techniques, animal models, and clinical studies, with the ultimate goal of advancing our understanding of this hormone and its potential applications in medicine.

As a researcher joining a lab working on osteocalcin, there are several questions that I would want to address in order to further our understanding of this hormone and its role in the body.

Firstly, I would want to investigate the molecular mechanisms by which osteocalcin interacts with its target organs and receptors. This could involve studying the 3D structure of osteocalcin and its binding sites, as well as using techniques such as gene expression analysis and protein-protein interaction assays to better understand how osteocalcin influences cellular signaling pathways.

Secondly, I would be interested in exploring the functional roles of osteocalcin in various physiological processes, including bone formation, glucose metabolism, and energy homeostasis. This could involve using animal models and cell culture systems to study the effects of osteocalcin on different tissues and organs, as well as conducting clinical studies to investigate the potential therapeutic applications of osteocalcin in the treatment of metabolic disorders such as diabetes.

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False. Pollutants can affect specific areas, but they can also spread through the watershed.

Watersheds are interconnected systems where water and pollutants can flow downstream, potentially affecting many areas. Pollutants can be carried by runoff, groundwater, or atmospheric deposition, and can be transported long distances through the watershed. Additionally, some pollutants can accumulate in sediment or biota, leading to the potential for bioaccumulation and biomagnification in the food chain. Therefore, it is important to manage pollutants in watersheds on a holistic basis, taking into account the interconnected nature of these systems and the potential for pollutants to travel and impact downstream areas. Proper management practices such as source control, treatment, and monitoring can help mitigate the spread of pollutants throughout the watershed.

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The difference between dominant and recessive alleles is that dominant alleles are the expressed form of a character, whereas the recessive allele is the trait that is not expressed.

An allele is an alternative form of a gene that occurs at the same position on a chromosome. Alleles are responsible for different traits such as hair color, eye color, and blood type.

Each individual has two alleles for each gene, one from each parent. Dominant alleles are expressed in the phenotype (physical appearance) when present in an organism's genotype (genetic makeup). It means that if an organism has at least one dominant allele, the dominant trait will be expressed.

For instance, brown eyes are dominant over blue eyes. Therefore, if an individual has a dominant allele for brown eyes, their eyes will be brown.

Recessive alleles are not expressed in the phenotype if present with a dominant allele. Recessive alleles are expressed only in homozygous individuals when there are no dominant alleles present.

For example, if an individual has a recessive allele for blue eyes and a dominant allele for brown eyes, their eyes will be brown since the dominant trait will be expressed.

Dominant and recessive alleles are inherited following the principles of Mendelian inheritance. If an individual receives two dominant alleles or one dominant and one recessive allele for a particular trait, the dominant trait will be expressed in the phenotype.

However, if an individual receives two recessive alleles for a particular trait, the recessive trait will be expressed in the phenotype.

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The body decreases the blood vessel radius by vasoconstriction.

A blood vessel is a tubular structure that transports blood throughout the body. Blood vessels are divided into three types: arteries, veins, and capillaries.

The heart pumps blood into the arteries, which then branch off into smaller arterioles that supply the capillaries.

Vasoconstriction is the process by which blood vessels constrict or narrow their diameter, increasing vascular resistance and decreasing blood flow.

It helps to control blood pressure and redirect blood flow to areas of the body that require it more urgently than other areas.

Blood vessels can constrict to various degrees, depending on the needs of the body. Vasoconstriction can be caused by a variety of factors, including hormones, drugs, and neurotransmitters.

For example, the hormone norepinephrine causes vasoconstriction by activating alpha-adrenergic receptors on the smooth muscle cells of blood vessels.

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If you were studying the functions of skeletal muscle, you would be studying all of the following except E) production of red blood cells.

The striated muscle known as skeletal muscle, which moves the skeleton, is linked to the bones by tendons. It can be actively contracted and relaxed to carry out a variety of movements because it is under voluntary control.

By offering support and preserving the correct alignment of the bones, skeletal muscle also plays a significant part in the stabilisation of joints. This makes movement easy and effective while reducing the risk of joint damage.

The production of heat by skeletal muscles, which aids in controlling body temperature, is another crucial function. When skeletal muscle contracts, it creates heat as a consequence of metabolic processes. This heat can assist maintain a steady internal body temperature, which is crucial for proper cellular activity.

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Transcription is the process in which an RNA is synthesized from a strand of DNA. Transcription factors are proteins that bind to DNA in promoter regions near genes and regulate transcription by activating or repressing RNA polymerase activity.

Transcription factors are essential for precise and adaptive regulation of transcription. By enabling a rapid response to changes in the environment and cell signaling, they help ensure that genes are expressed at the right time, in the right place, and in the right amounts.

In conclusion, the presence of transcription factors allows for fine regulation of gene expression and rapid response to changing conditions in the environment and within the cell.

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Answer:

it does

Explanation:

relationships impact human population growth as when a male and a female goes out together naughty tension rises. the boy leads the lady to a special room and will have high hopes but the girls so little like his parts

This characteristic determines the human population growth affected by said relationships

hope this help you....................

100%

Mohan sharm ram sir from Delhi private school Iran

When completing a quadrant streak, you should flame the loop before you streak quadrants two and three (C).

The purpose of flaming the loop is to sterilize it and prevent the transfer of unwanted organisms to the next quadrant or culture. Therefore, the loop is flamed before and after picking up the microorganisms and before streaking each new quadrant. This ensures that only the desired microorganisms are transferred and that cross-contamination is avoided.

1. Sterilize the loop by flaming it before picking up the organisms.
2. Pick up a loopful of organisms from the original culture.
3. Streak quadrant one with the loop.
4. Flame the loop again (C) before you streak quadrants two and three.
5. Streak quadrants two and three.
6. Flame the loop once more and streak quadrant four.
7. Finally, flame the loop before returning it to the receptacle (B).

Therefore, the correct option is C.) Before you streak quadrants two and three.

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AIDS (Acquired Immunodeficiency Syndrome) is a chronic disease that is caused by the HIV virus. When the immune system is severely damaged, HIV infection can lead to AIDS. AIDS patients are at a high risk of infections that do not normally affect people with healthy immune systems due to the virus's impact on the immune system. Most of the deaths caused by AIDS are a result of other infections that would not harm people with healthy immune systems. Pneumocystis carinii pneumonia, a type of fungal infection, and tuberculosis are two of the most common AIDS-related illnesses. The body's immune system is responsible for keeping us healthy. The immune system is responsible for identifying and fighting off infections, viruses, and other foreign substances that enter the body. When HIV infection progresses to AIDS, the body's immune system is severely weakened, making it difficult to fight off infections. Therefore, the majority of deaths from AIDS are caused by infections that would not typically be fatal to someone with a healthy immune system.

Hence, the statement "most AIDS-related deaths are not a direct result of HIV, but of other infections that would not normally harm a host with a healthy immune system" is True.

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Most applications of biotechnology will come in the fields of All of these. The correct option is a.

Biotechnology is a rapidly growing field of science that is used in a variety of industries, including pharmaceuticals, health care, and agriculture. Pharmaceuticals use biotechnology to develop drugs to treat diseases, health care relies on biotechnology to diagnose and treat illnesses, and agriculture benefits from biotechnology through genetic engineering, pest control, and improved crop yields.

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The correct statement(s) about absorption is (D) Amino acid transport is linked to sodium transport.

Amino acids are transported across the villus epithelium in the small intestine, and this process is linked to sodium transport.

Amino acids, not proteins, are absorbed; proteins rely on prior digestion to amino acids. Most absorption of amino acids occurs in the jejunum; there is a lesser contribution from the ileum.

Amino acids are absorbed by a co-transport mechanism with sodium ions. Both sodium ion and amino acid combine with a cell surface protein receptor.

There are different receptors for the groups: neutral amino acids, basic amino acids, acidic amino acids

In addition, certain amino acids may have there own specific transporter e.g. proline. The receptor then conveys both molecules to the inside of the cell.

The energy for this transport is derived from the concentration gradient for sodium across the cell membrane. Na-K ATPase transporters actively and continuously pump sodium ions outwards to maintain the gradient.

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Answer:

The modification that occurs to retinoblastoma that will push the cell through the restriction checkpoint is its phosphorylation. This allows the cell to move from G1 to S phase of the cell cycle.

What is Retinoblastoma?

Retinoblastoma is a type of cancer that grows in the retina of the eye. This cancer is one of the rarest forms of cancer and mostly affects children. The condition starts in the cells that develop into retina cells. The retina is the light-sensitive tissue located at the back of the eye.

Modification of Retinoblastoma:

The retinoblastoma protein, or pRB, regulates the progression of the cell cycle from G1 phase to S phase by binding to the transcription factor E2F. When pRB is hypophosphorylated, it prevents E2F from binding to the promoter regions of genes required for DNA replication, resulting in a G1 cell cycle arrest or checkpoint.

The phosphorylation of the RB protein enables the cell to cross the restriction checkpoint and progress from G1 to S phase of the cell cycle. This phosphorylation is carried out by the cyclin-dependent kinases (CDKs), which phosphorylate several different sites on the RB protein.


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Diploid cells divide twice during meiosis, with the two divisions called meiosis I and meiosis II. The importance of these two divisions is that they lead to the formation of four haploid daughter cells.

During meiosis I, homologous pairs of chromosomes are divided and separated, with each chromosome now being carried in a different daughter cell. This step is important because it leads to the random distribution of genetic material during meiosis II. During meiosis II, the chromosomes of each daughter cell are further divided, leading to four haploid cells that are genetically different from the original cell. This variation in the daughter cells is important for creating new combinations of genetic material that may lead to better-adapted organisms.

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The correct answer is (a) as the water runs towards its central point, it picks up more pollution and becomes more concentrated.

As water runs off the land in a watershed, it picks up pollutants such as chemicals, nutrients, and sediment from agricultural, industrial, and other human activities. As the water flows towards a central point, such as a lake or river, the pollutants become more concentrated. This can lead to harmful effects on the aquatic ecosystem, including the death of fish and other aquatic organisms, and the contamination of drinking water sources. Additionally, the pollution can also have negative impacts on human health and the local economy, particularly in areas that rely on fishing or tourism. Therefore, it is important to manage and reduce pollution in watersheds to protect the health of the ecosystem and its inhabitants.

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Answer:

see below

Explanation:

_______________________________________

Related information:-

Features of genetic code:-

________________________________________

High tide & low tide are separated by the tidal range. A tidal range of 3 feet as a result.

Definition. A tidal cycle's vertical height difference between successive low and high waters is known as the tide range. Across different places and throughout various time intervals, the tide's range varies (Stembridge, 1982).

The largest tidal range in the world, at 16.3 meters (53.5 feet), is experienced in the Bay of Fundy in Canada. A similar range is also present in Ungava Bay, also in Canada. As in Bristol Channel between Wales and England in the United Kingdom, tidal ranges of up to 15 meters (49 feet) are frequently experienced.

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There must be at least 20 different tRNA molecules in a cell in order to form proteins. Each of the tRNA molecules has a unique anticodon that pairs with a codon of mRNA and a unique amino acid-binding site that pairs with a particular amino acid. This is necessary for the formation of proteins.

The minimum number of different tRNA molecules that must exist in a cell is 20, as there is one specific tRNA molecule for each of the 20 amino acids. Each tRNA molecule carries the correct amino acid to the ribosome, which is necessary for the formation of proteins.

The structure of tRNA molecules consists of an amino acid-binding site and an anticodon region. The anticodon region of each tRNA molecule is complementary to a codon of mRNA, and the amino acid-binding site is able to interact with an amino acid. The codons of mRNA direct the ribosome to the appropriate tRNA molecule that corresponds to a particular amino acid.

Therefore, since there are 20 amino acids, 20 different tRNA molecules must exist in a cell in order to pair with each of the codons of mRNA. This ensures that the correct amino acid is available for the formation of proteins. Without the correct tRNA molecule, the ribosome would not be able to bring the correct amino acid to the site of protein synthesis.

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An extension of disc material beyond the vertebral confines with the largest measurement being that of the depth of the displaced material is best termed as a disc protrusion.

A disc protrusion is a spinal disc disorder in which the nucleus pulposus extrudes through the outer layer of the fibrous ring (annulus fibrosus) and protrudes into the spinal canal, either backward or sideways.

The symptoms of disc protrusion include:

The main causes of disc protrusion include Ageing, Poor posture, Trauma to the spine, and Repetitive strain on the spinal column from work or exercise.

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