One of the major function of the skin is the production of Vitamin D
True
False
Answers
Answer:
one of the major function of the skin is a production of vitamin d false.
Related Questions
Alleles for the A and B blood cell antigens are codominant. The condition
where no antigens are present on the blood cells (type O blood) is a
recessive trait. Which set of parents can most likely produce a child with
type O blood?
Blood Type
Gone
Can Race
Blood From
A
А
AA
AD
A or o
AM
B
30
BO
Boro
AB
AB
A,B,
AB, O
o
8
00
o
HELPPPP
Answers
Answer:
can you be more specific
Your tongue is covered in bumps called papillae. Papillae have taste receptors that are bundled together (taste buds). Taste buds have microscopic hairs called microvilli which send nerve impulses to the brain. However, your nose plays a role too! While you’re chewing, the food releases chemicals that travel up your nose and trigger olfactory receptors which also send nerve impulses to the brain to help you interpret the true flavor of what you’re eating. With this information, explain why a cold or allergies can diminish the flavor of your food.
Answers
During eating, the tongue and nose receptors collaborate to send signals to the brain that can provide an idea of the flavor. When one has a cold, the nose does not work well enough to detect smell of the food.
What is the role of receptors in the body?Many receptors on various cell types function differently, such as the tongue receptor, which sends food taste information to the brain. The nose receptors send the food smell to the olfactory region of the brain, but when a person becomes allergic or cold, the nose receptors stop working properly, and the smell does not reach the brain.
Hence, due to these reasons, the nose cannot smell and the person gets little flavor from the food.
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PLEASE HELP PLEASE!!!!!!!!!!!!!!!!
What is required for a Salter's duck type of wave machine to be successful?
A. It would need to be very long and the tides would need to rise at least 5 meters.
B. It would need the tides to rise at least 5 meters and a large budget for maintenance.
C. It would need to be very long and far from any boats.
D. It would have a large budget for maintenance and need to be far from any boats.
Answers
Answer:
A
Explanation:
it would need to be very long and the tides would need to rise at least 5 meters.
Which characteristics do all Protista have in common?
They are all autotrophic and mobile.
They are all heterotrophic and produce spores.
They are all parasites and reproduce s.ex.ually or as.ex.ually.
They all lack cell specialization and prefer moist environments.
Answers
Answer:
d
Explanation:
because i said so lol - trust you will not be sorry
The characteristic that all protista have in common is that they all lack in cell specialization and prefer moist environment. The correct answer is option d.
Protista is a diverse group of eukaryotic organisms that are not classified as plants, animals, or fungi.
There are some common characteristics that are found in many members of this group.One such characteristic is that many Protista are unicellular or colonial, meaning that they are made up of a single cell or a small group of cells.Many Protista have flagella or cilia, which are used for locomotion.Many Protista also reproduce asexually through cell division, although some can reproduce sexually as well.Finally, all Protista live in moist environments, such as freshwater or soil.Therefore, they all lack cell specialization and prefer moist environments. Option d is the correct answer.
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If there are millions of red cells and thousands of white cell/ml of peripheral blood, why is the M:E ratio in the bone marrow 3:1 in favor of myeloid cells
Answers
Adults typically have a myeloid cell to nucleated erythroid cell ratio of between 1.2:1 and 5:1. Infection, chronic myelogenous leukemia, or erythroid hypoplasia can all result in an elevated M:E ratio (6:1).
What does the ME ratio in a bone marrow assessment signify?Myeloid to erythroid ratio (M:E) The M:E ratio reveals the proportions of granulocytes, monocytes, and their progenitors, which belong to the myeloid lineage, to erythroid lineage. Always include peripheral blood findings together with total marrow cellularity when interpreting the M:E ratio.
How do you determine the bone marrow myeloid erythroid ratio?The M/E ratio was calculated by dividing the total number of nucleated granulocytic cells by the total number of nucleated erythrocytic cells.
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What percent of their offspring are likely to inherit the disease? if two parents carry a recessive allele for a disease but don’t have it
Answers
Answer:
1/4
Explanation:
By saying that both parents have the recessive allele, but don't have it, it tells us that both parents are Heterozygous for this trait. They have one dominant trait and one recessive trait. This is demonstrated in the in the punnett square. We can see that 1/4 of the offspring will have two recessive alleles, 1/2 of the offspring will be Heterozygous, and 1/4 of the offspring will have both dominant alleles. In order to have the disease, the offspring needs to have both recessive alleles. That is 1/4 of the the offspring.
Which would be the benefit of a transgenic crop?
1. decreased drought tolerance
2. decreased disease resistance
3. increased resistance to pests
4. increased demands for nutrients
Answers
4. increased demands for nutrients would be the benefit of a transgenic crop
What advantages can transgenesis offer?Transgenesis enables the enhancement of the amount, overall quality, and particular nutritional content of nutrients in animal products. Transgenic technologies could make it possible to increase or transmit features that are good for nutrition.
Many farmers have profited from first-generation transgenic cultivars thanks to lower production costs, increased yields, or both. They frequently have also helped the environment by using less pesticides or by making it possible to grow crops with less tillage.
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1. What are the requirements for an area to be considered a hotspot?
A. 1,500 endemic plant species .
B. 30% or less of the endemic plant species remain.
C. Must be part of a developing country.
D. Both A and D
2. Where are some of the unique ecosystems of the United States?
A. In Pacific Northwest and California.
B. In the Florida Everglades and Hawaii.
C. Both A and B
D. None of the above .
3. If you are buying an exotic species at a pet store, why should you ask for documentation regarding the origin and legality before buying it ?
A. It could have diseases
B. It is illegal to capture/purchase some species under the law
C. In case you need to return it
D. There is no need to do this
Answers
The correct options are; 1. A. 1,500 endemic plant species.
2. C. Both A and B
3. B. It is illegal to capture/purchase some species under the law.
How important are biodiversity hotspots, and what are they?Biodiversity hotspots are geographical areas that are ecologically distinct and have a particularly high species richness; they are therefore top priorities for nature preservation. Biodiversity is defined in a variety of ways.
What environmental effects does the trade in exotic pets cause?When foreign species are removed from the wild, they are in fact eliminated from the local, reproducing population. When released by their owners into a continent other than their own, exotic animals can also devastate the ecosystem.
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What might be some ways in which a person could lose or alter their fingerprint?.
Answers
"According to a recent study, there are a number of skin disorders that might cause the loss of fingerprints, with nonspecific dermatitis topping the list. Primary hyperhidrosis, irritating contact dermatitis, dyshidrotic eczema, psoriasis, and mechanical abrasion were also found to be contributing factors."
Fingerprint- The study of all the skin's friction ridges, including the fingers, palms, toes, soles, and their markings, in order to deduce the identification of the source is known as forensic evidence of fingerprint.
Skin Disorder- Skin problems known as skin diseases can harm your skin. Rashes, inflammation, itching, and other skin changes can be brought on by these illnesses. While certain skin diseases may be hereditary, others may be brought on by a person's lifestyle.
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Pls answer os butterfly a animal
Answers
Answer:
Yes
Explanation:
Butterfly is an insect and Insects are of Kingdom Animalia so Yes, butterfly is an animal having characteristics of an insect.
What does it mean to describe evolution as a scientific theory?.
Answers
Answer:
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
Explanation:
Explain- Why are tobacco,alcohol and ultraviolet radiation listed as carcinogens in the table?
Answers
An advantage of asexual reproduction is that it does not require fertilization. What advantage do the offspring of sexual reproduction MOST likely have as a result of fertilization?
A. DNA variation may allow survival in a changing environment.
B. Unfavorable traits from each parent will be eliminated.
C. Traits will be perfectly adapted to the environment.
D. DNA will be less varied and therefore more stable.
Answers
The advantage that offspring of sexual reproduction most likely have as a result of fertilization is A. DNA variation may allow survival in a changing environment.
Fertilization, which involves the fusion of genetic material from two parent organisms, leads to the creation of offspring with unique combinations of genetic traits.
This genetic variation is advantageous for several reasons. Firstly, it increases the adaptability of a population to changes in the environment. In a changing environment, having a diverse set of genetic traits increases the chances that at least some individuals will possess traits that are well-suited for the new conditions.
This enhances the survival and reproductive success of the offspring.
Secondly, genetic variation resulting from fertilization helps in the elimination of unfavorable traits.
If one parent carries a detrimental genetic trait, the other parent's genetic material may contain beneficial or neutral traits that can counteract or dilute the negative effects.
This selective advantage leads to the elimination of harmful traits from the population over time.
However, it is important to note that while sexual reproduction introduces genetic variation, it does not guarantee that all traits will be perfectly adapted to the environment (option C).
Natural selection acts upon this genetic variation to favor traits that provide a fitness advantage in specific environmental conditions.
The resulting population will gradually become better adapted through the process of evolution.
Option D is incorrect because genetic variation, rather than reduced variation, leads to increased stability and resilience in changing environments. Therefore, the correct answer is A.
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1
2
TIME REMAININ
59:15
About how long ago did our solar system start to form?
O About 5 million years ago
O About 14 million years ago
About 5 billion years ago
O About 14 billion years ago
Answers
Answer:
About 5billion years ago is the correct option.
Explanation:
Hope this will help you :)
Answer:
About 5 billion years ago
Explanation:
farr mm, wehr ee. survival of eimeria acervulina, e. tenella, and e. maxima oocysts on soil under various field conditions. ann ny acad sci. 1949;52(4):468–72.
Answers
The study by Farr and Wehr (1949) investigated the survival of Eimeria acervulina, E. tenella, and E. maxima oocysts on soil under various field conditions.
The research conducted by Farr and Wehr in 1949 focused on understanding the survival of Eimeria species, specifically E. acervulina, E. tenella, and E. maxima, which are protozoan parasites that cause coccidiosis in poultry. The study aimed to assess how these oocysts, which are the infective stage of the parasites, persisted in the soil under different environmental conditions.
By examining the survival rates of the oocysts, the researchers gained insights into the durability and potential persistence of the parasites in the external environment. This knowledge is crucial for understanding the epidemiology and transmission dynamics of coccidiosis, a significant concern in the poultry industry.
The findings of the study shed light on the ability of Eimeria oocysts to withstand various field conditions, such as temperature, humidity, and exposure to sunlight. The results provided valuable information on the longevity and resistance of these oocysts in soil, which has implications for disease control strategies and biosecurity measures.
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which of the following is not a way nucleosome formation affects dna? group of answer choices the dna is compacted. the access to dna by enzymes is altered. binding of h1 destabilizes the nucleosome, alleviating the transcriptional repression exerted by the binding of nucleosome histones. transcription is inhibited by the tight, internucleosome connections mediated by histone tails. binding of the transcription factor sp-1 can alleviate the transcriptional repression exerted by the histone binding.
Answers
The answer to this question is option 4 - transcription is inhibited by the tight, internucleosome connections mediated by histone tails. Nucleosomes are structures formed by DNA and histone proteins.
These structures play a vital role in regulating the accessibility of DNA to transcription factors and other enzymes that are necessary for gene expression. The compacting of DNA in nucleosomes can make it challenging for enzymes to access the DNA, altering the expression of genes. The binding of H1 destabilizes the nucleosome, which alleviates the transcriptional repression exerted by the binding of nucleosome histones. This destabilization can allow transcription factors and enzymes to access DNA, enabling gene expression. Similarly, binding of the transcription factor SP-1 can alleviate the transcriptional repression exerted by the histone binding. This binding can also enable gene expression.
However, the tight, internucleosome connections mediated by histone tails can inhibit transcription. These connections make it difficult for transcription factors and enzymes to access DNA, thus blocking gene expression. Therefore, the tight connections between nucleosomes are not a way nucleosome formation affects DNA positively.
In summary, nucleosome formation affects DNA in various ways, and it can either facilitate or inhibit gene expression. The compacting of DNA in nucleosomes can make it challenging for enzymes to access the DNA, altering the expression of genes. The binding of H1 and SP-1 can alleviate the transcriptional repression exerted by the histone binding, while tight internucleosome connections mediated by histone tails can inhibit transcription.
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Read the following excerpt from a patient's health record:
History of Present Illness:
Sharon's symptoms were consistent with congestive heart failure. It was decided to surgically correct her VSD. She underwent a sternotomy and atriotomy for patch placement in the ventricular septum to correct her VSD. This was performed with cardiopulmonary bypass under the guidance of a perfusionist. Sharon tolerated the procedure well and is now being admitted for postoperative observation and care.
According to this patient's medical history, which of the following statements is NOT true?
Sharon's symptoms were consistent with CHF
Sharon has a congenital heart defect
As part of the surgery, the surgeon made an incision in Sharon's sternum and the upper chamber of her heart
Sharon had symptoms that are consistent with heart failure characterized by the heart cavity being unable to pump all the blood out of itself
Sharon has a surgery to bypass an artery in the heart
Answers
According to this patient's medical history, the statement that is NOT true is that Sharon had surgery to bypass an artery in the heart.
What is congestive heart failure?
Heart failure, also known as congestive heart failure, is a condition in which the heart is unable to pump blood efficiently to the body's other organs. Because of the inability of the heart to pump all of the blood out of itself, Sharon had symptoms that were consistent with heart failure characterized by the heart cavity.
As part of the surgery to correct her ventricular septum defect (VSD), the surgeon made an incision in Sharon's sternum and the upper chamber of her heart. Sharon had a congenital heart defect, which is a heart defect that exists at birth and requires repair later in life.
Finally, the surgery was performed with the assistance of a perfusionist and cardiopulmonary bypass to place the patch in the ventricular septum to correct the VSD. Sharon did not undergo surgery to bypass an artery in the heart. Therefore, the correct option is e. Sharon has surgery to bypass an artery in the heart.
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Instructions: Choose a property of water and design an experiment to test the property. Use the following lab template to ensure all lab report components are included.
Title:
Objective(s):
Identify the purpose of your investigation or the question you are attempting to answer. Be sure to tie in the property of water you are testing.
Hypothesis:
Variables:
Independent Variable:
Dependent Variable:
Controlled Variable
Materials:
Procedure:
The procedure should be clear and detailed so that others can repeat it. The details should be specific in how the procedure changes the independent variable, controls all variables that need to be controlled, and observes or measures the resulting changes to the dependent variable.
Data and Observations:
Present all data and observations in a neat and organized manner. Include tables and graphs where appropriate/possible.
Conclusion:
Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:
Was your hypothesis correct? Why or why not?
What were the results of your experiment?
What changes would you make if you were to repeat the experiment?
Questions:
Using what you have learned in the lesson and the experiment, answer the following question in complete sentences.
Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water.
Safety Notes:
Always have parent(s) or guardian(s) permission and supervision when performing a lab activity at home.
Wear proper protective clothing and eyewear when needed.
Be sure to dispose of all materials properly.
Always wash your hands carefully after touching anything in a lab investigation.
Answers
Water is tasteless except if there are dissolved substances in it.
What are the properties of water?The properties of water refers to the features which water is known for or characterized with.
The properties of water include:
it is odorlessit colorlessit is tastelessThe property of water to be tested is odorless
Hypothesis: Water is tasteless because it contains no dissolved substances
Variables:
Independent Variable: Table salt
Dependent Variable: taste
Controlled Variable: Pure water
Materials: Pure water, table salt, cups
Procedure: Pure water was added to two cups. To one cup sugar was added, while to the other no sugar was added.
It was observed that the cup of water to which sugar was added changed taste while the other remained tasteless.
In conclusion, the presence of dissolved substances is responsible for taste of water.
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Which is the process of data gathering that uses instruments on satellites aircraft’s or ships?
Answers
Answer: Remote Sensing
Explanation: The process of gathering data about Earth using instruments mounted on satellites, airplanes, or ships is called remote sensing. Landsat satellites record reflected wavelengths of visible light and infrared radiation from Earth's surface, and then computers convert the information into digital images.
Sunlight is selectively scattered by atmospheric molecules, resulting in the blue color of the sky. this process is known as ________ scattering.
Answers
Sunlight is selectively scattered by atmospheric molecules, resulting in the blue color of the sky. this process is known as Rayleigh scattering.
In Rayleigh scattering, the incident light interacts with the particles or molecules, causing them to scatter the light in all directions. The scattered light is predominantly of the same wavelength as the incident light, resulting in a change in the direction of the light but not its color. This is because the scattering is inversely proportional to the fourth power of the wavelength of the light.
The intensity of the scattered light is higher in the forward direction (towards the incident light) compared to other angles, giving rise to the blue color of the sky during the day. This is because shorter wavelengths of light, such as blue and violet, are scattered more than longer wavelengths, such as red and orange. As a result, the blue light is scattered in all directions by the molecules in the Earth's atmosphere, giving the sky its blue appearance.
Rayleigh scattering is responsible for various atmospheric phenomena, such as the blue color of the sky, the red and orange colors seen during sunrise and sunset when the light has to pass through a greater thickness of the atmosphere, and the bluish color of distant mountains or landscapes due to the scattering of shorter wavelengths.
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some plants can fling, squirt, or otherwise hurl their own seeds for some distance upon maturity. what is the maximum distance a seed is likely to travel using this mechanism?
Answers
Some plants can fling, squirt, or otherwise hurl their own seeds for some distance upon maturity. The maximum distance a seed is likely to travel using this mechanism is about 45 meters.
What is seed dispersal?Seed dispersal is the process by which seeds are distributed throughout a landscape. Seeds that are spread by plants are said to be dispersed, and they can be dispersed by a variety of methods, including wind, water, and animals. A seed's form can influence how it is dispersed.
The maximum distance a seed can travel using this mechanism is around 45 meters. Several plants fling their seeds, which are commonly referred to as ballistic dispersal mechanisms. The plants that fling their seeds include violets, touch-me-nots, and witch hazels, among others.
When the seeds are mature, the seedpod splits open, and the seeds are flung out. In the case of touch-me-nots, the slightest touch may cause the seeds to fly out from the seedpod. Seeds may travel significant distances if they are dispersed in this manner.
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Make a prediction of this: A group of scientists recently proposed the idea that beets should replace salt for melting winter ice. The scientists pointed out that because beets grow underground, they continue to grow in freezing conditions. Thus, they hypothesized, an extract of beet roots could melt ice on roads in winter. To test this hypothesis, the scientists froze equal volumes of water on two separate plates. They spread an extract of beet roots on one plate of ice and sprinkled an equal amount of salt over the other plate. After keeping both plates at 0°C (the temperature at which water freezes) for a period of time, they measured the amount of melted water on each plate. Their results showed that the plate treated with beet extract contained more liquid water than the plate treated with salt.
Answers
Answer:
extract of beet roots could be used as antifreeze for water systems
Explanation:
In science, a prediction can be defined as a plausible conjecture that is subsequently proved (or rejected) using the scientific method. In other words, a prediction is the expected result obtained if the hypothesis is true. Scientists make predictions based on falsifiable hypotheses which can be tested through experimental and/or observational procedures. In this case, it could be predicted that the extract of beet roots could be used as anti-freeze for water systems in cold climates.
Which is the structure labeled a?
Answers
Answer:
=A substance.
.............
What makes all of the samples different from each other?
Answers
Just the table PLEASE!!! I’ll Mark you as Brainly!!!
Answers
2.) Carbon Dioxide
3.)78.084%
4.)Oxygen
amoeba sisters video recap: multiple alleles (abo blood types) and punnett squares
Answers
The Amoeba Sisters video recap on multiple alleles (ABO blood types) and Punnett squares explains how multiple alleles are involved in determining human blood types. It also shows how to use Punnett squares to predict the probability of offspring inheriting specific blood types (ABO blood types).
ABO blood types are determined by multiple alleles. There are three alleles involved in the ABO blood group system: A, B, and O. The A and B alleles are codominant, meaning they both express themselves in the phenotype if present. The O allele is recessive to both A and B, meaning it only expresses itself in the phenotype if two copies are present. A person's blood type is determined by the combination of alleles they inherit from their parents.
Punnett squares are a useful tool for predicting the probability of offspring inheriting certain traits from their parents.
To use a Punnett square to predict blood type, you would write the alleles of one parent along the top of the square and the alleles of the other parent along the side of the square. Then, you would fill in the boxes with the possible combinations of alleles in the offspring.
For example, if one parent has the genotype AA and the other parent has the genotype BB, their offspring would all have the genotype AB. This is because each parent donates one A allele and one B allele, resulting in an AB combination in their offspring.
Overall, the video recap explains how multiple alleles and Punnett squares can be used to predict human blood types and inheritance patterns.
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Where does energy first come into an ecosystem?
A producers make energy
B the sunlight provides energy to producers
C consumers obtain energy from animals
D scavengers obtain energy from dead plants
Answers
Answer:B. Sunlight provides energy to producers
Explanation: photoautotrophs (plants) produce energy from sunlight by photosynthesis. This is the only energy production based on an external source of energy. Plants, whether alive or dead, are consumed by heterotrophs - bacteria, fungi and animals. The nutrients and energy from dead heterotrophs (and some live ones) are recycled by both autotrophs and heterotrophs.
In the following food chain, what would happen if insecticides were applied to the ecosystem, killing all the caterpillars?
Herbaceous PlantsCaterpillarsSparrowsEagles
A.
The sparrows will be forced to feed on the herbaceous plants rather than the caterpillars, leaving the sparrows more vulnerable to the eagles.
B.
The herbaceous plants may become underpopulated.
C.
The sparrows may starve if they cannot find another food source, causing the subsequent possible starvation of the eagles.
D.
The sparrows and eagles may become overpopulated
Answers
If insecticides are applied to an ecosystem, killing all the caterpillars, the effects on the food chain could be devastating. Without the caterpillars as a food source, the sparrows will be forced to feed on the herbaceous plants, leaving them more vulnerable to the eagles.
Here, correct option is A.
This could result in the herbaceous plants becoming underpopulated, as the sparrows may exhaust the food source. Without another food source, the sparrows may starve, and if that happens, the eagles could suffer from starvation as well.
Furthermore, if the sparrows and eagles are unable to find a new food source, they may become overpopulated, leading to a decrease in the size of their populations. Ultimately, the application of insecticides could have devastating effects on the food chain, resulting in a decrease in population sizes and a disruption of the balance of the ecosystem.
Therefore, correct option is A.
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Looking at the drawings below, what 2 organelles does the cell on the right have that the cell on the left does not have?
Answers
Answer:
◻ Nucleus
◻ Mitochondria
Which of the following is NOT true about adaptation? A. Adaptation helps organisms survive in their environment. B. Adaptation can be a physical change in the organism.
C. Adaptation will always be the same regardless of the environment.
D. Adaptation can lead to evolution over many generations.
Answers
Answer:
c
Explanation:
Adaptation is a heritable behavioral, morphological, or physiological trait that has emerged through natural selection to preserve or improve an organism's fitness. Therefore, option (C) is correct.
What is adaptation?The term "adaptation" refers to a behavioral, morphological, or physiological trait that is inherited and has developed as a result of natural selection to maintain or improve an organism's fitness in response to a specific set of environmental conditions. Adaptation can be thought of as a heritable trait.
One useful illustration is the capacity to conceal oneself. Camouflage is an adaptation that helps an organism blend in with its surroundings so that it is not obvious to other organisms in those same circumstances. The organism is also able to protect itself from the hostile environment thanks to its adaptations.
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