A blank basically made up of genetic material surrounded by a shell called a blank

There are many different types of cells present in the human body. The types listed in the question are all present in the human body and each plays a specific role.

Each of these cell types plays a crucial role in the overall function of the human body.

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We can see here filling the blank spaces, we have:

Recall: The most important aspect of documentary photography is to capture real-life events and situations without manipulation or alteration.

Understand: When parts of an image are changed or faked, it can create problems for photojournalists because it undermines the credibility and authenticity of the photograph. Manipulation can distort the truth and mislead the audience, which goes against the principles of ethical and truthful journalism.

Apply: To create a truthful photograph that communicates what my lunchtime is really like, I would use a camera to capture a candid shot of myself and my surroundings during lunchtime.

Photography is the art and practice of creating images by capturing light with a camera. It involves using a camera to record visual images of people, objects, or scenes onto a medium, such as film or digital memory cards.

Analyze: Looking at Fig. 7-5, "Mother Teresa with Child", Mary Ellen Mark made several choices that influenced the final image. She used a shallow depth of field to blur the background, placing the focus on Mother Teresa and the child. This draws the viewer's attention to the interaction between the two subjects.

The lighting is soft and diffused, which creates a warm and intimate atmosphere. The subjects are positioned off-center, which creates a sense of movement and makes the image more dynamic. These choices create a powerful and emotional image that conveys the compassion and kindness of Mother Teresa.

Synthesize: A code of conduct or ethics for photojournalists should include standards such as honesty, integrity, accuracy, and respect for subjects' privacy and dignity. Photojournalists should not alter or manipulate images in a way that misleads or deceives the audience.

They should also obtain consent from their subjects before taking their photographs and should avoid using images that exploit or stereotype individuals or groups. Photojournalists should strive to represent events and situations truthfully and objectively and should avoid bias or prejudice in their work.

Evaluate: Fig. 7-21, "The Critic" by Weegee communicates a message of cynicism and isolation. The photograph depicts a solitary figure sitting in a dark and empty theater, surrounded by empty seats. The figure is hunched over and appears to be lost in thought or deep contemplation.

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The most probable number in a 100 ml sample of water is 17. The correct answer is C.

The MPN or most probable number in a 100 mL water sample can be determined by using the MPN table. The MPN is the number of microorganisms present in a given volume of a liquid or food product. It is used to calculate the number of bacteria in a liquid or food product.

The results of the 15 tubes of lactose broth from the presumptive test are as follows: 3 of the 10 ml water samples have gas, 1 of the 5 tubes with 1 ml water samples have gas, and 2 of the 0.1 ml samples have gas. Using the MPN table, we can determine that the number of microorganisms per 100 ml sample of water is 17. Therefore, the correct option is c. 17.

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The medium-sized African and Asian antelopes known as gazelles have done just that.

Even while it's unlikely that any of the roughly 19 species of gazelles could outrun a cheetah in a race, some of them have gotten very proficient at persuading the strong cat not to attempt and take them down.

Even though they tend to be quiet and peaceful, gazelles are skilled communicators. Gazelles have a variety of ways to communicate using only their bodies, from dodging a chase to attracting a partner.

Stotting is among the more intriguing instances of gazelle body language. Stotting, sometimes known as pronking, is the act of gazelles repeatedly leaping into the air while holding their backs arched and all four legs erect.

Therefore, The medium-sized African and Asian antelopes known as gazelles have done just that.

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Self-cloning, or parthenogenesis, is a reproductive strategy in which an individual can produce offspring without the need for fertilization by a male.

In captivity, some species may experience changes in their environment that can trigger self-cloning as a response to stress or lack of mating opportunities.

This is more likely to occur in species that have the ability to switch between sexual and asexual reproduction depending on environmental conditions.

Self-cloning can also be a result of genetic mutations or abnormalities that prevent normal sexual reproduction from occurring. In some cases, individuals that are unable to mate successfully may resort to self-cloning as a means of ensuring their genetic lineage continues.

Additionally, some species are naturally capable of parthenogenesis, and this ability may become more prevalent in captive populations due to a lack of genetic diversity and mating opportunities.

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Nicotine and cannabinoids are both plant secondary compounds, which are compounds produced by plants and found in very small amounts. They are not plant macronutrients, anti-cancer agents, or plant micronutrients.

Secondary compounds are chemicals that are not directly involved in the basic metabolic processes of a plant, such as photosynthesis, respiration, or nutrient uptake. Instead, they serve other functions, such as protection against herbivores and pathogens, attraction of pollinators, and communication with other plants. NICOTINE is a secondary compound found in the tobacco plant, while CANNABINOIDS are secondary compounds found in the cannabis plant. Both of these compounds have psychoactive effects and are used for recreational and medicinal purposes.

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When first describing "cells" Hooke observed microscope as cork. Thus, the correct option will be B.

The invention of the microscope which was led to the discovery of the cell by Robert Hooke. While he was looking at the cork in the microscope, Robert Hooke observed the box-shaped structures, which he called as the cells as they reminded him of the cells which are found inside the body of living organisms, or rooms, in monasteries. This discovery led to the development of the classical cell theory which was later contributed and rediscovered by other scientists.

When Robert Hooke was first describing cells, he observed the cells under microscope as the cork.

Therefore, the correct option is B.

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Answer:

Explanation:

The formula represents the process of photosynthesis, which can be written in words as:

Light energy is used to convert six molecules of carbon dioxide and six molecules of water into one molecule of glucose (a type of sugar) and six molecules of oxygen.

Synonymous mutations may affect the fitness of an organism in a way that it could affect RNA folding. The correct answer is C- Synonymous mutations could affect RNA folding.

Synonymous mutations, also known as silent mutations, are changes in the DNA sequence that do not result in a change in the amino acid sequence of the protein. While they may not affect the protein directly, they can still have an effect on the fitness of an organism. One way they can do this is by affecting RNA folding.

RNA folding is important for the proper functioning of the RNA molecule, and changes in the folding can affect its stability and ability to interact with other molecules. This can have an impact on the expression of the gene and the functioning of the protein, potentially affecting the fitness of the organism.

Therefore, while synonymous mutations may not directly affect the amino acid sequence of the protein, they can still have an impact on the fitness of the organism through their effect on RNA folding.

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The statement ''Capsule sealing provides a tamper-evident dosage form and therefore, it is a must in the commercial production of capsules'' is true, because sealing is a crucial and necessary phase in the production of capsules.

Capsule sealing is an important step in the commercial production of capsules because it provides a tamper-evident dosage form. This means that any tampering with the capsule will be immediately evident, helping to ensure the safety and effectiveness of the medication.

Sealing also helps to prevent leakage of the medication and helps to protect it from moisture and other environmental factors. Therefore, capsule sealing is a must in the commercial production of capsules.

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Answer:

This would result in the offspring having a 50% chance of being heterozygous for type A blood (AO) and a 50% chance of offspring being heterozygous for type B blood (BO).

Explanation:

Type O blood is considered recessive because it is recessive to A and B blood type alleles. Someone who has type O blood will be homozygous recessive. This means there are two O allele for the trait. AB blood type is codominant which means each allele is equally expressed. Type A and B blood types can have two different genotypes each. Because O is recessive to A and B alleles, A and B blood types can be heterozygous (AO,BO) or homozygous dominant (AA,BB). We already know the parents genotypes because AB is codominant and O blood type must be homozygous recessive (OO).

The probability that the couple's first child will have blood type O is approximately 50%.

The blood type of an individual is determined by the presence or absence of certain antigens on the surface of red blood cells. There are four main blood types: A, B, AB, and O. Blood type is inherited from our parents, and the specific combination of blood types that a child can inherit depends on the blood types of their parents.

In this case, one parent has blood type AB and the other parent has blood type O. Blood type O is recessive, meaning that it only shows up when an individual has two copies of the O allele. Both parents must therefore be carriers of the O allele for their child to have blood type O.

The probability of an individual inheriting a specific allele from a parent is 50%, assuming that the parent is a carrier of that allele. Therefore, there is a 50% chance that the AB parent is a carrier of the O allele, and a 100% chance that the O parent is a carrier of the O allele.

To determine the probability that their child will have blood type O, we need to consider the possible blood type combinations that the child could inherit. The child could inherit blood type A or B if they inherit the A or B allele from the AB parent, or they could inherit blood type O if they inherit the O allele from both parents.

Therefore, the probability of the child having blood type O is 50% (the chance that the AB parent is a carrier of the O allele) multiplied by 100% (the chance that the O parent is a carrier of the O allele), which equals 50%. This means that there is a 50% chance that their child will have blood type O.

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Answer:

Region C

Explanation:

A challenging place to live as a farmer would be an area that experiences extreme temperatures or unpredictable weather patterns that can damage crops. Additionally, places with frequent droughts or floods can also be difficult for farmers to sustain their crops. Other factors that can make farming challenging include poor soil quality, limited access to water resources, and high levels of pests and diseases. Ultimately, the challenges faced by farmers can vary depending on the location and local conditions, so it is essential to consider specific factors when evaluating the difficulty of farming in a particular area.

The presence of the Forssman antibody that is not absorbed by guinea pig kidney cells but is absorbed by beef red blood cells (rbc's).

This antibody is a type of heterophile antibody that is produced in response to an infection with certain bacteria or viruses. The Forssman antibody is absorbed by beef rbc's because it reacts with a specific antigen that is present on the surface of these cells. If the test for the presence of this antibody is negative, it is recommended to repeat the test in 1 week to confirm the result.

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To accomplish its cytoskeletal rearrangements for each of the following reasons EXCEPT Polymerizing and depolymerizing cytoskeletal filaments uses less energy. (B)

A cell relies on the strategy of polymerizing and depolymerizing cytoskeletal filaments for several reasons. One of these reasons is that diffusion of subunits is much faster than diffusion of polymeric filaments (option A). This allows the cell to rearrange its cytoskeleton more quickly and efficiently.

Another reason is that diffusion of large structures like filaments is too slow for cellular needs (option C).

By polymerizing and depolymerizing filaments, the cell can quickly change the shape and structure of its cytoskeleton. Finally, rearrangements of filaments by diffusion would lead to hopeless tangles (option D), which would make it difficult for the cell to function properly.

However, polymerizing and depolymerizing cytoskeletal filaments does not use less energy than diffusion (option B). In fact, polymerization and depolymerization require energy in the form of ATP, whereas diffusion is a passive process that does not require energy. Therefore, option B is the incorrect answer.

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Genes are expressed in an organism as they are turned on and off in reaction to the environment. Therefore, option B is correct.

Genes are segments of DNA (deoxyribonucleic acid) that contain the instructions for the development and function of living organisms. They are the basic units of heredity and are passed down from one generation to the next.

Each gene contains a specific sequence of nucleotides, which are the building blocks of DNA, and these nucleotides determine the type of protein that will be produced by the gene. Proteins are essential for the structure, function, and regulation of cells, tissues, and organs in the body.

Gene expression is the process by which the instructions encoded in DNA are converted into proteins, and this process is tightly regulated to ensure the proper development and function of the organism. Gene expression is regulated by a complex interplay of environmental and internal factors. Thus, option B is correct.

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Population dispersal rates can be related to organism size, with larger organisms generally having lower dispersal rates than smaller organisms.

Larger organisms tend to have lower dispersal rates as they need more resources to survive, have a higher energy demand and may be less mobile compared to smaller organisms.

One example of this relationship can be seen in birds. Smaller birds such as finches and sparrows have higher dispersal rates, as they are able to fly long distances and quickly colonize new areas. Larger birds such as eagles and owls have lower dispersal rates, as they require larger territories to find prey and may be limited by their flight capabilities.

Another example can be seen in plants. Smaller plants such as grasses and wildflowers have higher dispersal rates, as their seeds can be easily dispersed by wind or animals.

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An autoimmune disease is a condition in which the immune system cannot differentiate between healthy cells and antigens, resulting in the body's immune system attacking and destroying healthy tissues. The body's immune system is meant to protect it from harm by identifying and destroying any foreign substances or invaders like germs, viruses, bacteria, and others.

Autoimmune disorders disrupt this mechanism, resulting in the immune system attacking its own healthy tissues and cells. HIV, an infectious disease caused by the human immunodeficiency virus (HIV), infects helper T cells, which are a type of white blood cell in the body. Helper T cells play an important role in the immune system by assisting in the recognition and destruction of pathogens. HIV attacks and destroys these cells, leaving the body unable to defend itself against infections.

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An insertion mutation at the tenth codon and a deletion at the fourteenth codon would most likely not result in a wild-type phenotype. This is because both mutations would alter the reading frame of the gene, leading to a change in the amino acid sequence and potentially a nonfunctional protein.

The insertion mutation would add an extra nucleotide at the tenth codon, causing a frameshift mutation that would alter the reading frame for the rest of the gene. Similarly, the deletion mutation would remove a nucleotide at the fourteenth codon, also causing a frameshift mutation. These mutations could lead to a change in the protein structure and function, potentially resulting in a non-wild-type phenotype.

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A good hypothesis for the anaerobic jar experiment could be: "If anaerobic conditions are created within the jar, then the growth and incubation of anaerobic bacteria will be promoted."

This hypothesis clearly states the independent variable (the creation of anaerobic conditions within the jar) and the dependent variable (the growth and incubation of anaerobic bacteria). It also provides a prediction of the expected outcome, which is the promotion of anaerobic bacteria growth and incubation.

In order to test this hypothesis, you could set up an experiment with two jars, one with anaerobic conditions created using an anaerobic jar and one without. You could then compare the growth and incubation of anaerobic bacteria in both jars to see if the jar with anaerobic conditions promotes the growth and incubation of anaerobic bacteria more than the jar without anaerobic conditions.

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If molecules are moving in one direction while others are moving in the opposite direction at the same rate, this is an example of counterbalance.

Counterbalance means the influence or action of a counterbalancing force or condition. When two or more forces are working together in a way that offsets the effects of one another, this happens. It is most commonly employed to balance, stabilize, or offset forces.

Therefore, if molecules are moving in one direction while others are moving in the opposite direction at the same rate, this is an example of counterbalance.

In conclusion, the correct answer is ''counterbalance''.

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W. Paley is best known for his arguments for the existence of God and the notion of the "Divine Plan," which he advanced in his book Natural Theology. His writings helped to shape Darwin's thinking on evolution and the natural selection process, and their main points of disagreement were about the age of the Earth, the idea of a Creator, and the concept of natural selection.

William Paley was an English philosopher and theologian whose work had a profound impact on Charles Darwin's theory of evolution. Paley's most famous work, Natural Theology, argued for the existence of God based on the intricate design and complexity of the natural world. Paley believed that the complexity and order of the natural world could only be explained by the existence of a divine creator.

Darwin, on the other hand, developed the theory of evolution by natural selection, which posits that species evolve over time through a process of natural selection, in which those individuals with traits that are beneficial for their environment are more likely to survive and reproduce. This theory challenges Paley's argument for the existence of a divine creator, as it suggests that the complexity and order of the natural world can be explained by natural processes rather than divine intervention.

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The term that refers to the excess water from rainfall that moves over the land carrying sediment is runoff. Option 3 is the answer.

Sediments are particles of organic or inorganic material that accumulate over time through erosion, weathering, and/or biological processes. They can include a range of materials, such as soil, sand, gravel, and rock fragments, as well as organic materials like dead plants and animals.

Runoff is the movement of water over the land surface, often as a result of precipitation. This water may flow over the surface of the soil, carrying with it any sediments or pollutants that have accumulated on the surface. Runoff may occur as a result of rain, snowmelt, or other forms of precipitation, and can be influenced by factors such as the slope of the land, the amount of vegetation present, and the type of soil. Runoff is an important process in the water cycle, as it helps to transport water and nutrients through the landscape. However, it can also contribute to soil erosion, water pollution, and flooding if it is not managed properly.

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An episome is a type of genetic material that is similar to a plasmid, but it can integrate into the bacterial chromosome. Episomes are circular pieces of DNA that can replicate independently of the host chromosome or become a part of it.

Episomes can induce cell transformation, which is the process by which a normal cell becomes a cancer cell. This can happen when an episome carries a gene that causes the cell to divide uncontrollably, leading to the formation of a tumor.

One example of an episome forming tumor virus is the Epstein-Barr virus (EBV), which is a type of herpes virus. EBV can induce cellular transformation by integrating its episome into the host cell's genome. This allows the virus to express genes that promote cell growth and inhibit cell death, leading to the formation of a tumor. The mechanism of cellular transformation by EBV involves the expression of viral proteins, such as LMP1 and EBNA2, which activate signaling pathways that promote cell proliferation and prevent apoptosis.

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Antonie van Leeuwenhoek (1632-1723) is known as the "Father of Microbiology". He was the first to observe single-cell organisms that he called "animalcules".

The person known as the "Father of Microbiology" is Antonie van Leeuwenhoek. He was the first to observe single-cell organisms, which he called "animalcules," using a microscope that he had built himself. Van Leeuwenhoek's discoveries and observations helped to lay the foundation for the field of microbiology, and his work has had a lasting impact on our understanding of the natural world.
It is important to note that van Leeuwenhoek was not a trained scientist, but rather a self-taught naturalist and hobbyist. Despite this, his careful observations and meticulous record-keeping allowed him to make significant contributions to the field of microbiology. His work paved the way for future scientists to further explore and understand the microscopic world. More than 500 optical lenses were created by Antonie van Leeuwenhoek. Moreover, he produced at least 25 single-lens microscopes of various designs, but only nine of them have survived. These microscopes have hand-made lenses and silver or copper frames. Those who have made it thus far can magnify up to 275 times. It is believed that van Leeuwenhoek owned certain microscopes with a 500x magnification capability. He has generally been characterised as a dilettante or amateur, but his scientific work was extremely good.  The largest of van Leeuwenhoek's single-lens microscopes, which was about 5 cm in length, was a very compact instrument.  They are utilised by putting the lens just in front of the eye and glancing towards the Sun. The sample was fastened to a pin on the microscope's opposite side so that it would stay close to the lens. In addition, three screws were used to move the pin and the sample along three axes: one axis was used to switch the focus and the other two were used to move around the sample.

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Humans lost body hair as : b)Losing body hair would have led to fewer parasites on skin. d) Losing body hair would have facilitated cooling of the body.

Losing body hair would have led to fewer parasites on the skin: This is a possible explanation because body hair could have provided habitat for parasites to live and thrive.

Losing body hair would have facilitated cooling of body: This is a likely explanation because body hair can trap heat close to the skin, thus making it difficult for the body to regulate its temperature.

Humans lost their body hair to free themselves of the external parasites that infest fur like blood-sucking lice, fleas and ticks and the diseases they spread.

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Based on the DNA analysis results, it is clear that the fourth suspect's DNA matches the DNA left by the criminal at the crime scene. The DNA sequence of the fourth suspect is G-G-T-A-G-G-A-T-C, which is exactly the same as the DNA sequence left by the criminal. Therefore, the fourth suspect is the one who can be matched to the crime scene and is most likely the criminal.

DNA testing in criminal investigations is based on the analysis of samples such as hair, blood or body fluids taken from crime scenes and suspects.

Forensic testing uses DNA sequences to identify victims, implicate or rule out criminal suspects, and in testing biological relationships between people.

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The palms of the band and soles of the feet have the highest concentration of sweat glands at about 500/cm², so there would be approximately 13.5 million sweat glands in the sole of a foot measuring 10 cm ×27 cm.

Number of sweat glands = concentration of sweat glands x surface area

The concentration of sweat glands on the sole of the foot is 500/cm², one can convert the area of the foot to cm² by multiplying its length and width by 10 

Surface area of sole of foot = 10 cm x 27 cm x 10 x 10 = 27,000 cm²

Number of sweat glands = 500/cm² x 27,000 cm² = 13,500,000

So, there would be approximately 13.5 million sweat glands 

Hence, there would be approximately 13.5 million sweat glands in the sole of a foot measuring 10 cm ×27 cm.

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The DNA sequence that is complementary to 5'-ATCGCAACTGTCACTA-3' is: 5'-ATCACTGTCAACGCTA-3'.

This is because the complementary strand of DNA is formed by reversing the nucleotides and changing the complementary base pair. In other words, an A is always paired with a T and a C is always paired with a G.

So, if we reverse the nucleotides in the given strand of DNA (5'-ATCGCAACTGTCACTA-3'), we get 5'-TACGTGTAACAGTCAT-3'. Then, we replace each nucleotide with its complementary base pair: A with T, T with A, C with G, and G with C. The resulting sequence is 5'-ATCACTGTCAACGCTA-3', which is option 2.

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The quartz crystal that serves as the timekeeping element in modern quartz clocks and watches is in the form of a tiny tuning fork. It usually vibrates at a frequency of 32,768 Hz in the ultrasonic range (above the range of human hearing).

Answer:

It varies with fork to fork.

Explanation:

This question is not related to biology.

You can study detail in physics where we read about change in frequency produce different kind of sound.

CREB and NFAT can influence the activity of AgRP neurons through different mechanisms, such as by modulating ion channels, neurotransmitter release, and synaptic plasticity. To measure glucose handling, one could use several methods such as the oral glucose tolerance test (OGTT), the intravenous glucose tolerance test (IVGTT), or continuous glucose monitoring (CGM).

The cAMP response element-binding protein (CREB) and the nuclear factor of activated T cells (NFAT) are both transcription factors that regulate gene expression in cells, including AgRP neurons. CREB and NFAT can regulate the expression of various neuropeptides and receptors that affect the excitability and output of AgRP neurons.

CREB and NFAT can also interact with other signaling pathways and transcriptional regulators to modulate the activity of AgRP neurons. For instance, CREB can bind to other transcription factors like CRTC1 or ATF4 to activate or repress different sets of target genes. Similarly, NFAT can interact with other factors like calcineurin or HDACs to modify the chromatin structure and regulate gene expression.

The OGTT involves administering a standard dose of glucose (usually 75 g) orally and measuring the blood glucose level at different time points over the next 2 hours. This test can provide information about the body's ability to clear glucose from the blood and respond to insulin.

The IVGTT involves injecting a bolus of glucose (usually 0.3 g/kg) intravenously and measuring the blood glucose level at different time points over the next 2 hours. This test can provide more accurate measurements of insulin secretion and sensitivity compared to the OGTT, but it requires more invasive procedures and specialized equipment.

The CGM involves wearing a device that continuously monitors the blood glucose level over several days or weeks. This test can provide more detailed information about the fluctuations and patterns of glucose levels throughout the day, which can help identify abnormal glucose handling in different conditions such as diabetes, obesity, or stress.

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