Which two groups—marsupials and placental wolves—would you say are most closely connected to one another?
What is a phylogenetic example?A unique phylogeny example is the animal phylogenetic tree that shows the history of animal organs. In terms of the history of animal organs, it demonstrates animal phylogeny. Based on the unit level of organization in this sort of graphic, it is possible to determine the evolutionary pattern of the main animal lineages.
Why is phylogenetic analysis used?An in-depth understanding of how species change genetically is provided through phylogenetic analysis. With the aid of phylogenetics, researchers may assess the route an organism took to reach its ancestral origin and forecast potential genetic divergence.
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the energy in a gluclose molecule is transfered to for use in the cell
Answer: ATP
Explanation:
all of the following are functions of muscles except a. control of openings. b. heat production. c. respiration. d. secretion. e. stability.
The function of muscles except option D. Secretion.
The muscular machine is composed of specialised cells known as muscle fibers. Their principal characteristic is contractibility. Muscle mass, attached to bones or inner organs and blood vessels, are chargeable for motion. Nearly all movement within the body is the end result of muscle contraction.
Those muscle tissues assist you flow, carry things, pump blood through your frame, and even help you breathe. While you reflect onconsideration on your muscle tissue, you probably suppose most about those you can manipulate. These are your voluntary (VOL-uhn-ter-ee) muscular tissues, which means you may control their movements.
Muscle tissue flow body components by using contracting and then enjoyable. Muscle tissues can pull bones, however they cannot push them back to the authentic role.
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if, in a heterozygous individual, only one allele is expressed in the phenotype, that allele is: group of answer choices recessive. normal. potent. haploid. dominant.
Only one allele—the dominant allele—is expressed in the phenotypic of a heterozygous person.
What does it mean to be heterozygous?(HEH-teh-roh-ZY-gus JEE-noh-tipe) a gene region where there are two distinct alleles present. One normal allele and just one mutated allele, or two distinct mutated alleles, can make up a heterozygous genotype (compound heterozygote).
What is an example of heterozygosity?You have such a genetic trait for that gene if the two options differ from one another. For instance, having one gene for red hair one and allele for brown hair could indicate that you are heterozygous for hair color.
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The term "dominant allele" refers to an allele that has the upper hand over another allele or that is strong enough to stifle the expression of another allele.
Does heterozygosity imply similarity or difference?
A person is heterozygous if they inherit various copies of the same gene from both parents. When a gene from each grandparent is identical, it is said to be homozygous. In essence, homozygous denotes the same thing while heterozygous denotes differences.
What does the scientific term homozygous mean?
The term "homozygous" refers to a genetic situation in which each set of chromosomes in an organism carries identical genes for a single gene inherited from both parents. Allele: Various combinations of one or more genes.
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19. Leah cuts a small stem from an azalea plant in her garden and gives it to John. John takes the cutting home and plants it in his garden. In a few months, the small stem has grown into a full-sized plant. Which of these choices correctly describes this situation? A) John's plant reproduced by budding, and is genetically different than the plant in Leah's garden. B) John's plant reproduced by vegetative reproduction, and is genetically identical to the plant in Leah's garden. C) John's plant reproduced by binary fission, and is genetically different than the plant in Leah's garden. D) John's plant reproduced by spore formation, and is genetically identical to plant in Leah's garden
John's plant reproduced by vegetative reproduction, and is genetically identical to the plant in Leah's garden.
Vegetative reproduction is any type of asexual reproduction that takes place in plants and involves the growth of a new plant from a piece of the parent plant or a specially designed reproductive structure (such as a stolon, rhizome, tuber, corm, or bulb). The two kinds of vegetative reproduction are as follows: Reproduction by stem, leaf, and root are all natural vegetative methods. Cutting, layering, grafting, and micro-propagation are all types of artificial vegetative propagation. When a single egg is fertilized by a single sperm and divides into two after fertilization, the outcome is identical twins, also known as monozygotic twins. Twins that are identical have the same genomes and are always the same sex.
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Examine the diagram.
What genetic condition do the individuals in blue have?
the resulting cultures were then plated on dropout medium containing streptomycin. why was streptomycin added?
Since patients who have previously received treatment for TB are more likely to have developed some form of drug resistance, streptomycin is added to first-line regimens.
What does adding streptomycin accomplish?A number of bacterial illnesses, including tuberculosis, Mycobacterium avium complex, endocarditis, brucellosis, Burkholderia infection, plague, tularemia, and rat bite fever are treated with the antibiotic drug streptomycin.
What was treated by streptomycin?A prescription drug called streptomycin is used to treat the signs and symptoms of moderate-to-severe diseases like tuberculosis. You can take streptomycin by itself or in combination with other drugs. Aminoglycosides are a class of medications that includes streptomycin.
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Consider a relation representing the present position of molecules in a closed container. The attributes are an id for the molecule, the x, y, and z coordinates of the molecule, and its velocity in the x, y, and z dimensions. What fd’s would you expect to hold? what are the keys?.
The functional dependencies that can be held are as follows:
{PX, PY, PZ} ----> VX
{PX, PY, PZ} ----> VY
{PX, PY, PZ} ----> VZ
A functional dependency is a constraint that is typically used to specify the relationship that exists between two distinct sets of attributes, wherein one set is able to accurately and uniquely determine the actual value of the other sets. This definition of functional dependency can be found here.
The molecule's velocities would be VX, VY, and VZ in this scenario, while the coordinates of the molecule would be PX, PY, and PZ. As a result, the following are examples of functional dependencies:
{PX, PY, PZ} ----> VX{PX, PY, PZ} ----> VY{PX, PY, PZ} ----> VZThe following sequence of keys in the R can be used to obtain the molecule on the closed surface:
PX, PY, PZVX, VY, VZ.The term "superkeys" refers to a collection of properties that can be used to hold a key, such as molecules, dimensions, and velocities. As a result, the following is the list of superkeys:
PX, VX, VY, VZ.
PY, VX, VY, VZ.
PZ, VX, VY, VZ.
In conclusion, when attributes are added to a primary key, a superkey can be created.
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(complete question)
Consider a relation representing the present position of molecules in a closed container. The attributes are the ID for the molecule, the X, Y, and Z coordinates of the molecule, and its velocity in the X, Y, and Z dimensions. Refer to the X, Y, and Z coordinates as PX, PY, and PZ respectively, and the X, Y, and Z velocities as VX, VY, and VZ respectively.
a) What functional dependencies do you expect to hold?
b) What are the keys?
c) Other than the keys list three superkeys.
d) Other than the keys how superkeys are there?
portion of rna molecule that codes for making a protien
biochemical oxygen demand (bod) is controlled by the concentration of choose one: a. heterotrophic microorganisms. b. multicellular organisms. c. autotrophic microorganisms. d. benthic microorganisms.
The quantity of multicellular organisms in an area determines the biochemical oxygen demand (bod).
Where do microorganisms live?Microbes are extremely little living entities that can't be seen with the human eye and are present all around us. In the air, on land, and in water, they exist. Millions of these germs, also known as microorganisms, reside inside the human body. While certain microorganisms make us ill, others are beneficial to our health.
Which of the following factors is the primary driver of an increase in the biochemical oxygen demand in aquatic environments?In order to respire and catabolize organic molecules, microbial heterotrophs need oxygen. These actions reduces the oxygen content of the aqueous body, raising its BOD.
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lymphatic organs differ from lymphatic tissues in what way? a) they contain t lymphocytes and lymphatic tissues do not. b) they are found in the digestive tract and lymphatic tissues are found in the thorax. c) they are surrounded by a fibrous capsule and lymphatic tissues are not. d) they cannot produce antibodies, whereas lymphatic tissues can. e) they occur throughout the body except in the head.
Lymphatic organs differ from lymphatic tissues in following way:
e) that they occur throughout the body except in head.
How does lymphatic organs differ from lymphatic tissues?Lymphatic organs occur throughout the body except in the head. They are surrounded by a fibrous capsule but lymphatic tissues are not. They also have T lymphocytes and lymphatic tissues do not.
Lymphatic system contains the bone marrow, spleen, thymus, lymph nodes and lymphatic vessels. The lymphatic system is an organ system that is part of the immune system and complementary to the circulatory system.
Lymphoid tissues are organized structures that support immune responses and bone marrow and thymus are primary lymphoid tissues and the sites of lymphocyte development.
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through which can evolution be measured? observing changes in a single individual over its lifetime. observing long term morphological changes in the fossil record reflecting underlying genetic change. observing the spread of new genetic variants through a population. observing changes the effects of genetic change on the form and function of organisms. all of the above
The evolution can be measured by: observing long term morphological changes in the fossil record reflecting underlying genetic change.
Evolution is the gradual and visible change that occurs over a long course of time. Evolution is a population phenomenon and cannot be observed in a single individual. The evolution can be due to genetic changes or it can be morphological due to environmental factors.
Fossils are the traces, remains or expressions of the ancient dead plants or animals. Fossils are the best objects to study the evolution as they display the form of living of organism of that time and enable to establish their connection with the current organisms.
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what is one virulence factor that differentiates staphylococcus aureus from other species of staphylococci?
Coagulase is the virulence factor that differentiates S.aureus from other staphylococcus species.
What is staphylococcus aureus?
It is a gram +ve bacteria that causes a wide range of diseases. Staphylococcus aureus is often spread by contaminated hands. An effective barrier against this infection would be the skin and mucus membrane. If these physical barriers are breached, then they may cause serious infections. S. aureus is the leading reason for skin and soft tissues infections. Example: abscesses, cellulitis, etc.
Most Staph infections aren’t usually serious, but they can cause serious bloodstream infections (bacteremia), pneumonia, bone and joint infections etc.
Hence, S. aureus is distinguished from other species of staphylococcus if it is coagulase positive. Which means the bacteria can cause blood coagulation, giving it its pathogenic nature.
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Which of the following statements illustrates functional fixedness? I have only seen metal desks, therefore only metal can be used to make desks. Corn may only be used to produce ethanol because it is yellow. A person who is four feet tall may or may not be able to drive a school bus. Chairs are not always made of wood, but some chairs are made of wood.
The statement which illustrates functional fixedness is that I have only seen metal desks, therefore only metal can be used to make desks and is denoted as option A.
What is Functional fixedness?This is referred to as a cognitive bias that impacts an individual's ability to be creative. This is used to explain why a substance is only used for the main purpose and not for other purposes.
Option A states that only metal can be used to make desks which is a good example of functional fixedness as it can also be used for other purposes which is therefore the reason why it was chosen as the correct choice.
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How do ocean currents impact the climate of a region?
Answer:
"currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface."
Explanation:
This was the definition I found, but if you'd like some more help, let me know! :)
certain bacteria and viruses are more likely to be spread by fomites than other species of microbes. research pathogens that are commonly transmitted by fomites and provide one bacteria and one virus example. describe how fomite-spread pathogens gain access to the body and the most effective methods for preventing transmission.
Fomites can become infected with a plague through direct contact with bodily fluids, soiled hands, talking, sneezing, coughing, or vomiting, or by being exposed to an airborne virus.
Indirect entails a private coming into contact with a contaminated object. This frequently happens as a result of contaminated objects or environments from dirty hands. This surface still has the microorganism thereon, expecting the subsequent person to touch it and pick it up.
What about bacteria?Some bacteria aid within the digestion of food, assist the body produce necessary vitamins, and eliminate disease-causing cells.Additionally, bacteria are employed to form nutritious foods like yogurt and cheese. But contagious microorganisms offer you a disease.Within your body, they multiply rapidly.Bacteria can feed a spread of ways.The energy that heterotrophic bacteria, often mentioned as heterotrophs, produce comes from eating organic carbon.Most of them take up decaying organic matter like dead meat.These parasitic microorganisms can either aid or harm their host.Actually, the event of germs is simply delayed.Cooking food at 165 degrees or above is the sole technique to destroy microorganisms using temperature.Bacteria also die in extremely acidic environments, such as pickle juice.Bacteria must be killed using water that's 140 degrees Fahrenheit or hotter.This system is used by most restaurants to kill bacteria on food and cooking equipment and to clean surfaces.Bacteria can also be killed by chlorine.Medicines mentioned as antibiotics are used to treat bacterial infections in both humans and animals.Learn more about bacteria here:
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Social sciences are
a.
the observable facts or events that involve human society.
b.
how people relate to one another and influence each other’s behavior.
c.
the hidden meanings behind human actions.
d.
the disciplines that study human social behavior or institutions and functions of human society in a scientific manner.
Social sciences are the disciplines that study human social behavior or institutions and functions of human society in a scientific manner.
what are the application studying social science ?Social science is the field of study where the paragliding word concerned with occurrences created by humans and opposed to traditional sciences.
under this sciences anthropology, evolutionary psychology is often categorized fall under that same group.
It can be used to involve in engineering field as either a decision science or other specialty with a technical bent.
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The graph shows the progress of a chemical reaction with and without the presence of an enzyme. Analyze the data. Which statement accurately reflects what is shown in the graph? A. The presence of the enzyme decreases the activation energy. B. The presence of the enzyme decreases the change in free energy. C. The presence of the enzyme decreases the energy of the products. D. The presence of the enzyme prevents the reaction from progressing
The difference between reactions mediated or not by enzymes, is the speed at which they occur, and hence, the required activation energy. A) The presence of the enzyme decreases the activation energy.
What are enzymes?Enzymes are proteins with intracellular catalytic properties that accelerate different natural chemical reactions. These reactions occur naturally, but they are accelerated in the presence of the enzyme.
Enzymes are in charge of catalyzing cell metabolism. Since they are proteins, they need an accurate tridimensional structure to accomplish their function. There is a limited temperature and pH level at which they lose that structure and denaturalize.
Concerning the reaction, in the enzyme's presence and absence, the substrate and the product are the same.
The main difference is the activation energy required to carry out the reaction.
Let us remember that activation energy is the one required to create or break bonds between molecules. Usually, the higher the activation energy is, the slower the reaction occurs.
In the presence of the enzyme, the reaction needs a lower activation energy than in its absence.
Without the enzyme ⇒ higher activation energy ⇒ slower reaction With the enzyme ⇒ lower activation enegy ⇒ faster reaction
According to this framework, the correct option is A. The presence of the enzyme decreases the activation energy.
Note: Since I could not find the complete question, I will attach a graph showing the progress of a chemical reaction with and without the presence of an enzyme. This diagram should be the same as yours.
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dnp is a toxin that destroys the proton gradient created by the electron transport chain. where in the cell does dnp act? a. plasma membrane b. mitochondrial matrix c. inner mitochondrial membrane d. nuclear membrane
The toxin dnp degrades the proton gradient created by the electron transport chain. The location of dnp in the cell is. mitochondrial inner membrane
Mitochondria are double-membraned organelles with phospholipid bilayers and proteins as inner and outer membranes. The inner mitochondrial membrane (IMM) is of particular interest because it houses the electron transport chain and ATP synthase. As a result, the inner mitochondrial membrane serves as a functional barrier between the cytosol and the matrix, preserving the proton gradient that drives oxidative phosphorylation. The mitochondrial inner membrane, like the cell membrane, is primarily composed of a phospholipid bilayer. Various proteins embedded in this bilayer serve to transport electrons.
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one of the building blocks of a nucleic acid
i will mark the best ancer the brainlyest
the process of blood clotting is: group of answer choices coagulation. hemolysis. dyscrasia. hematopoiesis.
The process of blood clotting is called coagulation.
What is blood clotting?
When blood's platelets, proteins, and cells adhere to one another, a blood clot forms. Your body creates a blood clot to stop the bleeding when you are injured. Your body often dissolves and eliminates the blood clot when the bleeding stops and healing has begun.
What is the process of blood coagulation?
The process through which blood transforms from a liquid to a gel and forms a blood clot is known as coagulation, often known as clotting. Hemostasis, the halting of blood loss from a damaged vessel, may ensue, followed by repair. Platelet activation, adhesion, and aggregation as well as fibrin deposition and maturation are all components of the coagulation mechanism.
Hence the process of blood clotting is called coagulation.
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a phenotypically normal couple seek genetic counseling because the man's karyotype showed that his chromosomes had a reciprocal translocation between chromosomes 4 and 12. because the translocation is reciprocal there was no genetic information lost and he is healthy; however, he and his wife want to know the probability that his sperm cells will be abnormal. which fraction of his sperm cells is predicted to carry at least one chromosome with a translocation?
Three-fourth will have at least one chromosome with a translocation; the other 1/4 will carry normal chromosomes 4 and 12.
A karyotype is an person's entire set of chromosomes. The term additionally refers to a laboratory-produced image of someone's chromosomes isolated from an man or woman cell and arranged in numerical order. A karyotype may be used to look for abnormalities in chromosome range or structure.
Analyzing chromosomes through karyotyping allows your medical doctor to determine whether there are any abnormalities or structural problems inside the chromosomes. Chromosomes are in nearly every cellular of your body. They include the genetic material inherited from your mother and father.
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This is the last question for this assignment, please help.
Answer: Nitrogen fixation is on the left going into the ground and denitrification is the release on the right side.
Explanation:
a woman has a family history of breast cancer. she has her brca1 and brca2 genes tested, and no detrimental mutations are found. she is so relieved to know that she will not develop breast cancer. is she correct that she will not develop breast cancer?
No, she is not correct that she will not develop breast cancer.
She is inaccurate in announcing that she can be able to now no longer get breast most cancers with 100% certainty. Although, on the grounds that her BRCA1 and BRCA2 alleles have been located to haven't any mutations signalling breast cancers, which means that there is probably a totally small risk that she ought to nevertheless broaden breast most cancers.
Even though it's far relatively not going that she can be able to broaden breast cancers, there may be nevertheless a totally small risk that it is able to occur.
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Which statement describes the role of DNA in a cell? A. DNA molecules are the building blocks of tissues and carry out the work of each cell. B. DNA molecules deliver the pieces of proteins to the site of protein assembly in the cell. C. DNA molecules are broken apart inside the cell, and the pieces are assembled into proteins. D. DNA molecules contain the information that the cell uses to assemble the pieces of proteins in the correct order.
DNA molecules contain the information that the cell uses to assemble the pieces of proteins in the correct order describes the role of DNA in a cell. Therefore, option (D) is correct.
What are the functions of DNA?DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
DNA is responsible for carrying and transmitting hereditary materials or genetic instructions from parents to offspring. In addition to ensuring that all living things pass on their genetic information, DNA is essential for the synthesis of proteins.
DNA now has three distinct functions—genetics, immunological, and structural—that are widely disparate and variously dependent on the sugar phosphate backbone and the bases.
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A child is born with cystic fibrosis, an inherited recessive disorder. No one in the family (on either side) for several generations is known to carry the gene or have the disorder. How can this be explained?
a. The genetic disorder formed from the mother's poor nutrition and prenatal care.
b. There was a mutation in the DNA, either in one of the gametes or the fertilized egg.
c. The child contracted the illness from another child when he was born.
d. The child developed the disorder when he was born; it is a result of a birth defect.
A child born with cystic fibrosis an an inherited recessive disorder when no one in the family (on either side) for several generations is known to carry the gene or have the disorder must have got it through birth defect.
The correct option is D.
What is birth defect ?The certain kind of defects a child is born with because of sudden mutations happened in the genome.
For the disease to occur both the X and Y chromosomes from both the parents need to have 1 copy and this disease occurs through genomic mutations.
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some bacteria may be able to respond to environmental stress by increasing the rate at which mutations occur during cell division. how might this be accomplished?
By increasing the Genetic Variation within species some bacteria may be able to respond to environmental stress by increasing the rate at which mutations occur during cell division.
Increasing the rate of mutations during cell division would allow the bacteria to respond to environmental stress by increasing the genetic variation within types which could be easily altered to the environment. Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is regrouped as a cell is getting ready to divide (known as genetic recombination). Over time, as generations of individuals with the feature continue to replicate, the superior feature becomes to grow common in a population, making the population variate than an inherited one
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what is greenlands water features and why does it matter to greenland.
need help ASAP
Greenland water features for covering an impact on climate on land, having a cool climate.
What is Greenland water?The water around Greenland does have an impact on the climate on land. The water, in particular, helps to cool sections of shoreline near the open sea.
For this reason, during the summer months, the area nearest to the ice sheet seems to be the hottest and driest.
Approximately 80% of the country is enveloped by an ice sheet up to 3 km thick, and ice-free land regions are restricted to a coastal strip 50-300 km wide.
Therefore Greenland water features climate change impact on the land.
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atrial fibrillation (a-fib) is irregular electrical activity in the atria causing an arrthymia. where would you see a change from the normal ekg during an a-fib event?
During an a-fib occurrence, the P wave and PR interval differ from the normal ekg.
How does it feel to have an A- Fib?The atria, the upper chambers of the heart, beat erratically and chaotically during atrial fibrillation, which causes the ventricles, the heart's lower chambers, to beat out of time Shortness of breath, weakness, or a rapid, hammering heartbeat which causes the ventricles,
Why does an A Fib event occur?But as Gahanna pointed out, there are a variety of factors that might cause A fib, including alcohol, strenuous activity, dehydration, stress, and eating a lot of food to beat out of time Shortness of breath.
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some viral genomes, composed of positive sense single-stranded rna, act as mrna. what advantage might these viruses have over other kinds of viruses?
Because they don't require being changed from DNA to RNA, those viruses DO NOT require travelling to the nucleus.
Why are RNA viruses beneficial?Studying the rates of mutation in RNA viruses is one of the more fascinating biological topics. So that their mutation rates can be maximised for fitness, they encode the replication machinery (in comparison to small DNA viruses that use the polymerases of their host cells).
As opposed to DNA, why do viruses employ RNA?The transcription step can be skipped by RNA viruses, unlike DNA viruses that must always convert viral DNA into RNA in order to create proteins. Additionally, some RNA molecules have the ability to operate as messenger RNA that is translated directly into protein.
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in this question and your wider MYP knowledge, discuss and evaluate the possible implications of using light technology (Lasik).
In your answer, you should include:
-An evaluation on using light technology (Lasik)
-Economical impacts of introducing Lasik
-Social impacts of using Lasik
-A concluding recommendation based on the arguments you have discussed
It may give you some peace of mind to know that complications from LASIK are extremely unlikely to result in major, permanent vision loss. Thus, option D is correct.
What are the implications of using light technology (Lasik)?If you are considering the treatment but are concerned that anything might go wrong. Additionally, laser re-treatment can be used to fix a variety of issues.
Loss of vision as a result of complications is extremely uncommon. However, some LASIK side effects, notably dry eyes and transient vision issues like glare, are very typical.
Few people think these are long-term issues because they typically go away within a few weeks or months.
Therefore, A concluding recommendation based on the arguments you have discussed.
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