"The correct answer is (b) neural cell adhesion molecule (NCAM)."Neural crest cells are a population of multipotent cells that arise during embryonic development and differentiate into various cell types, including neurons, glial cells, and pigment cells.
Differentiation of neural crest cells is a complex process that is influenced by a variety of factors, including genetic and environmental cues. Among the factors listed in the options, the neural cell adhesion molecule (NCAM) is known to play a crucial role in the differentiation and migration of neural crest cells.
NCAM is a cell surface protein that mediates cell-cell interactions and adhesion, and is important for the development of the nervous system. It has been shown to promote the differentiation of neural crest cells into a variety of cell types, including neurons, glial cells, and melanocytes.
While the other options, including fibronectin, extracellular matrix, cell membrane protein gene expression, and glucocorticoids, may also play some role in neural crest cell differentiation, NCAM is a well-established factor that has been extensively studied in this context.
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Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homozygous and has green-colored pods?
The cross between parent who is heterozygous and has yellow-colored pods and the other is h0mozygous and has green-colored pods is Yy x yy; option A.
What is a heterozygous cross?A heterozygous cross is a cross is a cross between one or two parents who have different copies of alleles of the same gene.
Assuming Y for yellow is dominant over y for green;
The cross between parent who is heterozygous and has yellow-colored pods and the other is h0mozygous and has green-colored pods is represented below:
Yy x yy = Yy, Yy, yy, yy
In conclusion, the offspring will be two heterozygous yellow-colored pods and two h0mozygous that has green-colored pods.
In conclusion, the offspring of the heterozygous and h0m0zygous parents will have yellow and green pods.
Note that the complete question is as follows:
Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is hom0zygous and has green-colored pods?
Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is hom0zygous and has green-colored pods?Yy ´ yy
Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is hom0zygous and has green-colored pods?Yy ´ yyYY ´ yy
Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is hom0zygous and has green-colored pods?Yy ´ yyYY ´ yyYy ´ Yy
yy ´ yy
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The effects of vibration loading on adipose stem cell number, viability and differentiation towards bone-forming cells
Mechanical stimulation has a significant impact on bone cell and precursor metabolism. BM or osteogenic medium (OM), which is BM augmented with 250 M ascorbic acid 2-phosphate, 5 nM dexamethasone, and 10 mM-glycerophosphate, were both used to cultivate human ASCs. The effects on attachment, viability, proliferation, alkaline phosphatase activity, and mineralization were examined after hASCs were stimulated with high frequency (50 and 100 Hz) and high magnitude (3 g) vibration for three hours each day for two weeks using a specially designed vibration loading device.
Without vibration, control cells were grown similarly. ASDWe hypothesized that vibration loading would stimulate bone-forming cell differentiation while inhibiting fat tissue differentiation in human adipose stem cells (hASCs). We created a vibration-loading device that delivers 3g of peak acceleration to cells cultured in well plates at frequencies of 50 and 100 Hz.
Vibration-loading device and principleof operation
controllable vibration-loading device, designed andbuilt at the Biomedical Engineering Department. A block diagram of the complete system is shown. An electromagnetic linear motionengine composed of a sound-producing Lab 12 subwoo-fer (Eminence Speaker LLC, KY, USA) was employedto produce the vibration loading. The unit was drivenby a microcontroller-based signal source that was pro-vided with a direct accelerometer feedback. TheADXL321 accelerometer. Analogue Devices was mounted on the same attachment systemas the cell culture plates. The modulatedsquare wave signal was amplified by a T.AMP E800audio amplifier to produce the desired g-force. Peak acceleration of3gwas achieved by adjusting the amplitude of theoutput signal, corresponding to the vertical displacement.
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One of the many tests done during urodynamic studies is the sphincter electromyelogram. What does this test study
One of the many tests done during urodynamic studies is the sphincter electromyelogram. This test studies activity of the voluntary muscles of the perineal area.
Patients with urine incontinence or other symptoms of the lower urinary tract can be diagnosed with urodynamic testing. Both men and women take these examinations. Nerve and muscle function are measured by urodynamic testing.Clinically, perineal sphincter electromyography may be helpful in assessing individuals with bowel, urinary, and sexual dysfunction. All patients with a history and clinical examination that point to a central or peripheral sacral neuropathic lesion should be given this option. The pudendal nerve innervates the external sphincter (EAS), which is the best muscle for identifying neuropathic lesions in lower sacral myotomes.learn more about urodynamic studies here: https://brainly.com/question/10448206
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One of the many tests done during urodynamic studies is the sphincter electromyogram. This test studies the activity of the voluntary muscles of the perineal area.
ElectromyographyA method for analyzing and capturing the electrical activity generated by skeletal muscles is called electromyography (EMG). A record known as an electromyogram is created during an EMG using a device called an electromyograph.
SphincterA sphincter is a circular muscle that ordinarily keeps a bodily channel or orifice constricted and releases when necessary for normal physiological function. There are sphincters in many species.
What function does an EMG serve in the treatment of a striated sphincter?Urologists working in a lab with instruments for urodynamic examinations are suitable for helping with EMG of the urethral sphincter. The peripheral nervous system (PNS), central nervous system (CNS), or a mix of both may be damaged, leading to abnormalities of the striated sphincter.
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In the United States today, life expectancy is: Group of answer choices the number of years that reflect competence in dealing with challenges. longer for men than for women. believed to be influenced by having an extra X chromosome 78.5 years overall
Believed to be influenced by having an extra X chromosome 78.5 years overall.
What is the life expectancy in the US 2020?Life expectancy at birth for the entire U.S. population was 77.8 years in the first half of 2020, down from 78.8 in 2019. (6). Male life expectancy at birth fell by 1.2 years from 76.3 years in 2019 to 75.1 years in the first half of 2020. Life expectancy in the United States decreased during 2020 as a result of the pandemic.
According to the researchers, the drop in U.S. life expectancy between 2019 and 2021 is the largest since 1943, which was the bloodiest year for Americans during World War II. The decrease in U.S. life expectancy was highly racialized, with Hispanic and Black populations experiencing the largest losses in life expectancy between 2019 and 2021.
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(01.02 MC)
Darren is a wildlife biologist studying deer and wolf species in a nature reserve. He wants to know what is causing a decrease in the wolf population within the nature
reserve. What should Darren do next to find the answer to his question?
O Formulate a question about the wolf and deer populations in the reserve
Research causes of wolf population decline within other nature reserves
O Make a prediction explaining why wolf populations are decreasing
O Create controlled variables for a wolf population study of the reserve
Darren should research the causes of wolf population decline within other nature reserves to find the answer to this question.
Hence Option (b) is correct.
Wildlife originally referred to undomesticated animal species, but it has now expanded to include all living things that develop naturally or exist in the wild without human intervention.
Some major reasons that can cause a decline in the population of wolves or any wildlife are :
1) Exploitation: The demand for animals has increased as human populations have increased. So they overexploit the wildlife for selfish reasons.
2) Habitat loss
3) Human Land Use and Wildlife Competition for Space that leads to degradation of the habitat.
4) Invasive species: Invasive species are animals that are not native to the area and which enter the area, quickly breed, and spread.
5) Climate change due to pollution, global warming, and some other factors.
6) Diseases
Hence, Darren should research the causes of wolf population decline within other nature reserves to find the answer to this question.
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Heidi and gunther live with their biological parents. what type of family would this be called?
This type of family is called a nuclear family.
What is a family?A family is defined as the smallest unit of the society that is made up of individuals whom are related by blood, marriage or adoption.
There are different types of family which include the following:
Nuclear Families: This is made up of a father, a mother and their children.Single-Parent Families;Step Families.Grandparent Families:Childless Families:Extended Families:The importance of family include the following:
Family is the primary source of learning for children.Family provides the individual with moral support when necessary.A family gives us stability.A family makes us responsible for our duty.Family gives us some level of security in the society.Learn more about extended family here:
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Select the positive impacts of technology on animal agriculture.
more hygienic and humane practices
improved fertility of livestock
stronger and leaner livestock
introduction of new vegetation
animal immunity to diseases
increased demand for meat
insect-resistant crops
Answer:
improved fertility of livestock.stronger and leaner livestock.animal immunity to diseases.Explanation:
Whe you talk of Animal agriculture you are referring to those practices of breeding animals for the production of animal products and also for recreational uses/purposes. Technology has impacted animal agriculture positively through:
improved fertility of livestock. of livestock.stronger and leaner livestock. of livestock.stronger and leaner livestock.animal immunity to diseases.Pancreatic amylase catalyzes the breakdown of oligosaccharides to disaccharides with the addition of water. What classification of enzymes would amylase be in
According to the lock-and-key model, the active site of an enzyme has a/an ____________________ shape while the induced-fit model describes the active site as a/an_______________________ shape.
The lock and key model states that the active site of an enzyme has a Rigid shape while the induced fit model describes the active site as having a flexible shape.
According to the "lock and key" theory, an enzyme's active site precisely matches a particular substrate. According to the induced fit concept, an enzyme's active site will alter conformation when it binds a substrate to enhance the fit. The enzyme behaves as a lock in this concept, while the substrate acts as a key. Therefore, it states that only the proper key will fit in the active site of the enzyme. The active sites that are already existent have a rigid substrate form that only reacts with substrates that exactly fit inside of them.
Induced Fit Model: In this kind of model, the ultimate product of the enzyme is partially determined by its substrate, and enzymes are viewed as flexible.
Lock and Key claim that no modifications are required and that just a particular kind will fit. However, according to induced fit, the active site will alter to aid substrate fit.
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All athe following are present in membrane except globular proteins cholesterol traces of carbs phospholipids
Globular proteins are not present in the membrane.
What is the composition/structure of a cell membrane?The fluid mosaic model, which is the presently accepted explanation for the composition of the plasma membrane, was originally put forth in 1972. The plasma membrane is a mosaic of elements, primarily phospholipids, cholesterol, and proteins, that move fluidly and freely in the plane of the membrane, according to the fluid mosaic model.
Lipids (such as phospholipids and cholesterol), proteins, and carbohydrate groups that are joined to some of the lipids and proteins make up the plasma membrane.
A phospholipid is a lipid composed of glycerol, two fatty acid tails, and a head group that is phosphate-linked. Phospholipid bilayers, two layers of phospholipids with their tails pointing inward, are a common component of biological membranes.In the center of the membrane, next to phospholipids, is cholesterol, a different lipid made up of four fused carbon rings.Membrane proteins can enter the plasma membrane only partially, cross it totally, or remain loosely connected to either the inside or outside face of the membrane.The outer layer of the plasma membrane contains carbohydrate groups, which are joined to lipids or proteins to form glycolipids or glycoproteins.Learn more about plasma membrane here:
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What evidence suggests that the development of schizophrenic disorders is not entirely explained by genetics?
None of the twin studies have found a concordance rate that even approaches 100 percent. This evidence suggests that the development of schizophrenic disorders is not entirely explained by genetics
Identical twins were studied for relation of schizophrenia to genetics. There is a less than 0.5 association between identical twins with identical genomes and schizophrenia. As a result, it can be concluded that schizophrenia is not solely a genetic disorder.Although schizophrenia frequently runs in families, no one gene is known to be the cause. It's more likely that particular gene combinations increase a person's susceptibility to the illness. Nevertheless, schizophrenia is not a guarantee if you have these genes.The possibility that a person may acquire the illness is influenced by environmental risk factors such as pregnancy and birth problems, childhood trauma, migration, social isolation, urbanization, and substance misuse, operating alone and in combination throughout time at various levels.learn more about schizophrenic disorders here:https://brainly.com/question/7201954
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Which of the following forms of energy is correctly paired with its definition?
Choose 1 answer:
A Potential energy - the energy associated with an object's motion
B
Kinetic energy - the stored energy of an object due to its position
Chemical energy - the energy contained within a system that is
responsible for its temperature
Thermal energy - the energy in a system due to its temperature
Answer:
[tex]\huge\boxed{\sf Thermal \ energy}[/tex]
Explanation:
Corrected definitions:
Potential energy:The energy possessed by a body due to its position is called Potential Energy.Kinetic Energy:The energy possessed by a body due to its motion is called Kinetic Energy.Chemical Energy:The energy possessed by the body due to its atoms and molecules is called chemical energy.Thermal Energy:The energy in a system due to its temperature is called Thermal Energy.[tex]\rule[225]{225}{2}[/tex]
what do you think is the greatest challenge to survival faced by both plants and anivlams that live in the desert
Getting and keeping enough water in their bodies
Water loss is the greatest challenge to organisms that live in a desert biome
What do you think is the greatest challenge to survival faced by both plants and anivlams that live in the desert ?They face scorching hot air and ground temperatures during the summer season, and unpredictable and limited water even during the rainier seasons.
In order for plants to survive in the desert, they have adaptations that allow them to collect and store water and moisture and, prevent moisture lossAnimals survive in deserts by living underground or resting in burrows during the heat of the day.Learn more about Dersert plants and animals here:
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Which of the following is not an example of diffusion?
A:a drop of food coloring spreading through a glass of water
B:perfume filling a room
C:salt spilled onto the table
D:air leaking from a tire
The spilled salt does not actively spread or disperse throughout the table. Option C does not show diffusion.
Diffusion is the movement of particles or molecules from an area of higher concentration to an area of lower concentration, resulting in their even distribution.
When salt is spilled onto a table, it does not undergo diffusion. Instead, it remains localized in the area where it was spilled.
The random movement of particles from a region of high concentration to a region of low concentration is known as diffusion, although in this situation, the salt spilled is not actively spreading or moving over the table.
When a drop of food colouring is added to a glass of water, the food colouring molecules spread out evenly throughout the water due to diffusion.When perfume is sprayed in a room, its scent spreads throughout the air in the room, reaching all areas evenly, thanks to diffusion.When air leaks from a tire, the high-pressure air inside the tire moves to areas of lower pressure outside the tire, leading to the even distribution of air molecules due to diffusion.Thus, the correct option is C.
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Which of the following diseases can be passed to another person through an animal bite?
1. Lyme disease
II. Malaria
III. Cholera
Ol only
Oll only
OI and II
O II and III
The disease that can be passed to another person through an animal bite are;
MalariaMalariaCholeraTherefore, the answer is option D.
What are vectors?Vectors are carriers of disease-causing agent or pathogens.
Vectors transfer pathogens that are capable of causing diseases from an infected host to an healthy host.
Malaria is a disease spread by mosquito, in which a protozoan, plasmodium, multiplies in blood every few days.
Cholera is caused by certain strains of the Vibrio cholerae bacterium through ingestion of contaminated water or food, usually marked by severe gastrointestinal symptoms.
The following are diseases that can be transferred via vectors:
Malaria; which is caused by a plasmodium pathogen and carried by a mosquitoCholera; which is caused by a bacterium carried by a houseflyLearn more about vectors at: https://brainly.com/question/14987471
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Answer:
C- | and ||
Lyme and malaria
Explanation:
I took the test and got it right :)
A kinase is an enzyme that phosphorylates target proteins, whereas a phosphatase is an enzyme that dephosphosphorylates target proteins. The reactions catalyzed by these enzymes, however are NOT exactly opposite. Why not
Phosphatase removes the phosphate groups from protein molecules during the dephosphorylation process. As a result, a phosphatase can deactivate a protein that has been activated by a kinase. Dephosphorylation, however, cannot be reversed.
What is Phosphorylation?It is a process in which a molecule gets attached to a phosphoryl group.
The opposite of the phosphorylation is dephosphorylation in which the molecule looses a phosphoryl group.
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Strepsirrhines have a special trait resulting from the crowding of multiple lower incisors and canines called a Group of answer choices bilophodont. two-ridge tooth. diastema. tooth comb.
Correct answer-
Tooth comb- This is the correct answer because animals under Strepsirrhines have a unique feature in their teeth which is known as the tooth comb. Strepsirrhines are a suborder of animals, belonging to the class primates. The tooth comb forms as a result of crowding of multiple incisors and canines.
Incorrect answers-
bilophodont- This is incorrect because this type of teeth are characterized by the presence of two crests in their molars. These type of molars are found in monkeys that belong to the older generations of primates and are also found in rhinos, pigs and tapirs. two-ridge tooth- This is incorrect because this is not an unique feature of the Strepsirrhines. This kind of teeth are found in all humans and can be located in the pre-molars.diastema- This is incorrect because this is a gap between two teeth. This is also not an unique feature of Strepsirrhines. Tooth gap is also a common feature in humans.Learn more about tooth comb here-
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What do traits of anatomically modern humans include?
The traits of the anatomically modern humans include the following below:
High vertical foreheadRound and tall skullSmall browridges.What is Anatomy?This is defined as a branch of science which involves the study of the body structure of humans, organisms etc and how they are responsible for certain types of activities performed by certain parts of the body. For example, the skull is a structure which helps to protect the brain and other vital organs which are present in the body system.
Due to evolution, the modern experienced some changes anatomically which include round and tall skull and a high vertical forehead with the other features which are mentioned above. This helps it to see objects from different directions.
This is therefore the most appropriate anatomically modern human traits present today.
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Evidence that supports the prokaryotic origins of mitochondria and chloroplasts are all of the following except __________.
Your question was incomplete (please check below the full content). The evidence that supports the prokaryotic origins of mitochondria and chloroplasts do not include multiple DNA copies associated with inner membranes.
What is organellar DNA?The organellar DNA is the genome contained within mitochondria and chloroplasts, which is independent of nuclear eukaryotic DNA.
The organellar DNA contains multiple DNA molecules, which are found in association with the inner membrane, ant is not found in prokaryotic life forms.
The complete question in this case is: "Evidence that supports the prokaryotic origins of mitochondria and chloroplasts are the presence of mitochondria, a eukaryote engulfing prokaryotic photosynthetic cells, and non-photosynthetic eukaryotes, EXCEPT."
The endosymbiotic theory states that mitochondria and chloroplasts evolved from prokaryotic microorganisms that entered into a primitive eukaryotic cell.
This theory is supported by certain features of mitochondria and chloroplasts such as a similar size to prokaryotes.
In conclusion, evidence do not include the arrangement of the organellar DNA.
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Sort each daughter cell into the appropriate bin depending on which arrangement at metaphase I would create it.
During metaphase I, the homologous chromosomes are arranged in the center of the cell with the kinetochores facing opposite poles.
What is metaphase? Explain metaphase I.
After prophase, the mitotic cell division process moves on to metaphase. The alignment of the duplicated chromosomes at the metaphase plate, an equatorial plate, is what gives metaphase its name. By microtubules attached to its kinetochore, one of the sister chromatids is joined to one pole of the cell, and the other sister chromatid is associated with the other pole.
The homologous chromosomal pairs align on either side of the equatorial plate during metaphase I. The second stage of meiosis I is called metaphase I. The pairing off and DNA exchange between homologous chromosomes by homologous recombination and crossover at chiasma(ta) between non-sister chromatids are highlighted in prophase I, which comes after prophase I.
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The invention that led to the widespread transport of livestock was the railroad system.
True
False
Answer:
false
Explanation:
Barbed wire had a major impact on the cattle industry of the Western U.S so many farmers used barbed wire.
A/an ____ is a fluid-filled sac in the scrotum along the spermatic cord leading from the testicles.
A/an seminal vesicle is a fluid-filled sac in the scrotum along the spermatic cord leading from the testicles.
The male reproductive system includes a pair of glands called seminal vesicles that are located on the back of the bladder base in men.Their major job is to create the semen-making fluid that is expelled during ejaculation.The majority of the fluid that makes up semen is produced and stored by two tiny glands called seminal vesicles. The seminal vesicles' fluid is sent into the ejaculatory duct during ejaculation, where it might mingle with sperm and other reproductive fluids.The androgen-dependent seminal vesicle glands release a sizeable portion of the fluid that eventually turns into semen (seminal fluid). The majority of species' contributions to semen volume come from seminal vesicle glands.learn more about seminal vesicles here: https://brainly.com/question/11223304
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need help with this in bio lol
Answer:
[tex]\huge\boxed{\sf Possibility = 1/4}[/tex]
Explanation:
Let the dominant orange fur be denoted by F and the recessive white fur by denoted by f.
So, two heterozygous tigers (Ff) mate with eachother.
Ff x FfIf we make a Punnett Square of this cross, we will have the possibility of having 4 offspring.
Homozygous Dominant (FF)Heterozygous Dominant (Ff)Heterozygous Dominant (Ff)Homozygous Recessive (ff)The offspring in which recessive trait will be visible will be ff, which means only 1 offspring among the 4 offspring will have white fur.
Possibility = 1/4
[tex]\rule[225]{225}{2}[/tex]
What were the independent, dependent, and control variables in your investigation? Describe the variables for the simulation with the moths and birch trees.
The experiment is not found here but dependent variables may include the growth rate of moths, whereas the independent variable may be the temperature and the control is water.
What is a dependent variable?A dependent variable is the variable that is being modified by the conditions of the experiment (in the example, the growth is dependent on the temperature).
Moreover, a control variable is any condition that remains constant throughout the experiment (in this case, the amount of supplied water).
In conclusion, dependent variables is the growth rate, whereas the independent variable is the temperature and the control is water.
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(a) Define a microscope.
(b) List three uses of a compound microscope.
(c) Tabulate 5 differences between optical microscope and electron
microscope
(a) Briefly account on how microscope was discovered.
(b) State two uses of magnifying lenses
(c) Distinguish between the types of magnifying lenses
Answer:
A microscope is an laboratory instruments that can be used to observe small objects,even cells.
Which nutrient transports, dissolves, and reacts with chemicals; provides lubrication and shock protection; and aids in temperature regulation?
Water is the nutrient that transports, dissolves, and reacts with chemicals; provides lubrication and shock protection; and aids in temperature regulation.
What is the importance of water?Water is a substance (of molecular formula H₂O) found at room temperature and pressure as a clear liquid.
It is present naturally as rain, and found in rivers, lakes and seas; its solid form is ice and its gaseous form is steam.
However, water is a major requirement by living organisms as it plays several pivotal roles in the body.
Water as a nutrient helps in the transportation dissolution and reaction with chemicals. It provides lubrication and shock protection; and aids in temperature regulation.
The water in the body has an important role as a thermoregulator, regulating the overall body temperature by helping dissipate heat. If the body becomes too hot, water is lost through sweat and the evaporation of this sweat from the skin surface removes heat from the body.
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Newly formed B cells which bind to autoantigens (self-antigens) will undergo apoptosis. This process is known as:
I Don't No if you have any questions
all but which of the following can work against a viral infection
The question is incomplete but antivirals, cells of the immune system and antibodies can work against viral infection.
What is a viral infection?A viral infection is any disease caused by a virus that is able to infect and produce harm to a suitable host.
The immune system consists of different barriers to fight against viral infections, one of which is composed of immune cells and antibodies that work together to recognize and destroy pathogenic viruses.
For example, the cells that can work against a viral infection include cytotoxic T cells, macrophages and NK cells.
In conclusion, antivirals, cells of the immune system and antibodies can work against viral infection.
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Answer: Antibiotics
Explanation:
Mandell, Douglas and Bennett's Principles and Practice of Infectious Diseases, Fifth Edition, Infectious Diseases, The Sandford Guide to Antimicrobial Therapy 2000, Thirteenth Edition
The publication of a fifth edition of Mandell, Douglas and Bennett's Principles and Practice of Infectious Diseases, as well as the first edition of a new text, Infectious Diseases, and the thirteenth edition of the highly useful Sanford Guide to Antimicrobial Therapy.
Infectious DiseasesWhen hazardous organisms (pathogens) enter your body from the outside, it results in an infectious disease. Viral, bacterial, fungal, parasitic, and occasionally prions are pathogens that cause infectious diseases. Through bug bites, contaminated food, drink, or soil, as well as from other individuals, you might contract contagious diseases. Worldwide, there are a lot of infectious diseases, although some are more prevalent than others. For instance, each year in the US, 1 in 5 people contract the flu, yet fewer than 300 people are found to have prion illnesses. However, some infectious diseases might have long-term effects. Many infectious diseases heal without any sequelae.
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I need help sooo much. I really appreciate it
Answer:
D
is the answer because as you see the percentage increase
Answer:
900
\
Explanation: