Answer:
ambonychia
Explanation:
there's the answer hope it helped
It is common for a normal, healthy individual to carry potentially pathogenic organisms in their upper respiratory tract.
Yes. It is common for a normal, healthy individual to carry potentially pathogenic organisms in their upper respiratory tract.
The human upper respiratory tract serves as a reservoir for a diverse community of commensals and potential pathogens, such as Haemophilus influenzae, Moraxella catarrhalis,etc. which can occasionally develop into pathogens and cause infectious diseases. Viruses are responsible for the majority of upper respiratory tract infections.
Nasal hairs are used to catch debris. Particles are propelled upward and out of the respiratory tract by cilia on the epithelium of the trachea and bronchi. The respiratory system has a feature that guards against infections.
Therefore, It is common for a normal, healthy individual to carry potentially pathogenic organisms in their upper respiratory tract.
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In a population that is in Hardy-Weinberg equilibrium, 49% of the population show the homozygous recessive genotype. The frequency of homozygous dominant individuals is:
The frequency of homozygous dominant individuals is: 42%
Hardy–Weinberg equilibrium (HWE) is a null model of the relationship between allele and genotype frequencies, both within and between generations, assuming no mutation, no migration, no selection, random mating, and infinite population size. To find the frequency of the recessive allele, we must first find the frequency of the dominant allele (p). According to the Hardy-Weinberg principle, the square root of the homozygous genotype frequency is equal to the allele frequency. The Hardy-Weinberg equation used to determine genotype frequencies is: p2 + 2pq + q2 = 1. Where 'p2' represents the frequency of the homozygous dominant genotype (AA), '2pq' the frequency of the heterozygous genotype (Aa) and 'q2' the frequency of the homozygous recessive genotype (aa).
Calculation:
q2 = 49
q= 0.7
According to Hardy–Weinberg equilibrium p + q= 1
p = 1 - q
1-0.7= 0.3
p2+ 2pq+q2=1
One can substitute the values
2pq= 2(0.3) (0.7) = 0.42
42% is the answer.
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What are small area variations? a. geographic variations in health care practice b. demographic variations in health care practice c. both a and b d. neither a nor b
Small area variations are geographic variations in health care practice. That is option A.
What are geographic variations?In the health sector, geographic variations are a type of variations that involves the observation of small area using population-based medical services across the relatively small geographic areas.
The importance of geographic variations in health care practice include the following:
It helps in monitoring disease outbreaks,It targets public health strategies towards a particular disease.It saves cost for health care delivery servicesIt makes health care delivery services available for the populace.Learn more about variations here:
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What is diffusion on
Answer:
diffusion is process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
Explanation:
A familiar example is the perfume of a flower that quickly permeates the still air of a room. ion diffusion across a semipermeable membrane.
A student wanted to look at germination of five different seeds in vermiculite (a soil additive). He planted the seeds in identical containers and left them together in full sunlight. He gave each seed the same amount of water and charted the germination of each seed type. What is the independent variable in this experiment
The independent variable is the seed type. This cannot be changed while the other variables can be changed such as water, soil additive, and light.
Independent variables:
The variable which is not affected by the change in other variables at the time of study is called the independent variable. It is the cause of study. The dependent variables are the effect and are observed. These are dependent on the change in the independent variables. For example, seed type is an independent variable whereas germination which is the combined effect of light, water, and soil additive that determines the process of germination.
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In class, your professor shows you the skulls of three mammals. In one, the eye would be fully enclosed by bone. In the second, there is a bony circle around where the eye goes, but it is open in the back. In the third, the place where the eye would be is not encircled by bone at all. This suggests to you that
This suggests to you that
The first one is an anthropoid primate; the fully enclosed orbit is probably beneficial in an organism that relies heavily on vision.
Anthropoids are a group of primates currently represented by New and Old World monkeys, great apes and humans. They differ from other groups of primates such as strepsirrhines (lemurs) by several dental and cranial features (postorbital closure, shorter muzzles, increased vision due to more frontal eye sockets, fused frontal bone). The common ancestor of living anthropoids - including monkeys, apes and humans - arose in Africa and that the group had already branched into many species at that time.
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why do you think the process of photosynthesis and respiration are interrelated?
Answer:
While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere. The exchange of carbon dioxide and oxygen during photosynthesis (Figure below) and cellular respiration worldwide helps to keep atmospheric oxygen and carbon dioxide at stable levels.
In a particular plant, leaf color is controlled by gene D. Plants with at least one D allele have dark green leaves and plants with the homozygous recessive dd genotype have light green leaves. A Dd plant is crossed with another Dd plant. The predicted offspring are represented by numbers in the Punnett square. Which box(es) correspond(s) to plants with a heterozygous genotype
Boxes 2 and 3 will correspond to plants with a heterozygous genotype
An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
What is Heterozygous genotype ?The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote)
In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive.Heterozygotes can get genetic disease, but it depends on the type of disease.Learn more about Heterozygous genotype here:
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Which of the following describes way that humans decrease biodiversity?
1. We encroach on habitat.
II. We poach wild animals.
III. We use food resources faster than native species.
OI, II, and III
OI and III
OII and III
Oll only
Answer:
I, II and III
Explanation:
I believe that all the options given are ways in which humans decrease biodiversity.
Hope it helps!
Have a nice day:)
Answer: 1 2 and 3! no ca
Explanation:
Positive selection tests to see if the ______ of a T-lymphocyte can recognize and bind to an MHC molecule.
Positive selection tests to see if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.
What is a T-lymphocyte?A T-lymphocyte is a special type of immune cell that is generated inside the bone marrow.
The T-cell receptor (abbreviated as TCR) is a protein located on these immune T lymphocytes.
In conclusion, Positive selection identifies if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.
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the activity of an enzyme might be increased by all of the following except the presence of other enzymes.
Answer:
the presence of lead
Explanation:
I hope this help
The activity of an enzyme might be increased by all of the following except lead, which is in option D. Lead is a heavy metal that can act as an inhibitor of enzymatic activity, so option D is correct here.
Enzymes are biological catalysts, which means they are molecules that speed up chemical reactions in living organisms without being consumed or altered in the process. Almost all biochemical reactions in cells require enzymes to proceed at a rate that is sufficient for life. They play a crucial role in various metabolic pathways, allowing cells to carry out essential processes such as breaking down nutrients, building cellular structures, and regulating cellular functions. The enzyme-substrate interaction is highly specific, like a lock and key. Only substrates with a complementary shape to the enzyme's active site can bind to it.
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Complete question is below,
The activity of an enzyme might be increased by all of the following except ________?
A. increase in substrate concentration.
B. a vitamin.
C. 2-4 degree increase in temperature.
D. lead.
In the context of joint mobilization techniques, for what are inferior femoral glides at 90 degrees of hip flexion used?
Hip Inferior Glide is used to improve hip flexion. The technique is performed in supine with the hip flexed to 90°.
This technique can be used for decreasing muscle spasm or pain, and is also useful to increase accessory joint movement for flexion and abduction movements.
By performing the therapy the clinician’s hands can be clasped at the superior proximal femur or a mobilization strap can be used to enhance grip and reduce sliding on subject's skin. The clinician can simply lean back to impart an inferior force to the femur with a counterforce of the shoulder on the distal femur.
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what is nanotechnology ?
Answer:
Nanotechnology is the branch of technology that deals with making structures that are less than 100 nanometres long. Scientists often build these structures using individual molecules of substances.
If everyone on the planet used the same amount of resources as an average American, what percent of the Earth would need to be used to support everyone
If everyone on the planet used the same amount of resources as an average American, four Earths would be needed to sustain them.
What are Resources?These are the materials available in the environment which add quality and value to our life.
The earth comprises of resources which is limited and is therefore the reason why four earth will be needed to sustain them if everyone used the same amount.
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there are more protons than electrons in a negatively charged atom, true or false
whoever answers this, thank you so much!
Answer:
Electrons
Explanation:
Electrons are negatively charged, so if an atom is negatively charged, there will be more
Answer:
False
Explanation:
The answer is False.
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Basil metabolism is responsible for what percentage of calories used by the body?.
The basal metabolism is responsible for 60% of calories used by the body.
Basal metabolism can be defined as the rate of energy usage by the body at a state of rest. This metabolism is essential to maintain vital functions of the body. These vital mechanisms include functions like cellular respiration, breathing, blood circulation and pumping of the heart. These functions include mechanisms of the body that are mostly involuntary. The maximum energy expenditure of of the body occurs while the body undergoes basal metabolism. Basal metabolism rate is a trait which is flexible and does not require monitoring by other systems in the body. Basal metabolism is also responsible for the maintenance of homeostasis in the body. Basal metabolism uses calories stored in the body to carry out vital functions.
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The novel Parkinson's disease linked mutation G51D attenuates in vitro aggregation and membrane binding of alpha-synuclein, and enhances its secretion and nuclear localization in cells
PD linked mutation may cause neurodegeneration via different mechanism.
What is Novel Parkinson's disease linked mutation ?A novel mutation in the α-Synuclein (α-Syn) gene "G51D" was recently identified in two familial cases exhibiting features of Parkinson's disease (PD) and multiple system atrophy (MSA)
the G51D mutation significantly attenuates α-Syn aggregation in vitro.it disrupts local helix formation in the presence of SDS, decreases binding to lipid vesicles C-terminal to the site of mutation and severely inhibits helical folding in the presence of acidic vesicles.Learn more about Novel Parkinson's disease here:
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If the grasshoppers within a specific ecosystem are unable to detect vibrations, how will it affect that ecosystem?
If the grasshoppers within a specific ecosystem are unable to detect vibrations, they will not be able to communicate among themselves and defend against predators. This may lead to the loss of grasshoppers from the ecosystem.
What is vibrational communication?Sound is carried in the form of vibrations.Insects have sensory organs which help them to detect these vibrations.They interpret these sounds to communicate with each other and navigate through the environment.Vibrational signaling is the most common form of communication in insects which detects any mechanical disturbances in the surrounding environment.Some insects are even able to sense the sound of predators, thus are able to avoid them.Like many insects, grasshoppers have a pair of tympanal organs. These organs vibrate when they catch sound waves in the air. The larvae of grasshoppers use small stiff hairs called setae to sense sound vibrations.The caterpillars react to vibrations by exhibiting defensive posture.Learn about how animals communicate here:
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Mutation spectrum analysis of Duchenne/Becker muscular dystrophy in 68 families in Kuwait: The era of personalized medicine
Duchenne and Becker muscular dystrophies (DMD/BMD) are X-linked recessive neuromuscular disorders characterized by progressive irreversible muscle weakness and atrophy that affect both skeletal and cardiac muscles
What is Duchenne/Becker muscular dystrophy ?Both Duchenne and Becker muscular dystrophy are caused by mutations in a protein called dystrophin
In Duchenne muscular dystrophy, functioning dystrophin is completely absent in muscle, while in Becker muscular dystrophy, there is some dystrophin present, although not enough for completely normal muscle function.it usually affects boys in early childhood; people with the condition will usually only live into their 20s or 30s.Learn more about Duchenne/Becker muscular dystrophy here:
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Translation begins when mrna becomes associated with?
Answer:
Translation begins when an mRNA connects to the small subunit of a ribosome.
Explanation:
Connected to the tRNA of the start codon is an amino acid, called f-Met. Once the f-Met tRNA binds to the small subunit of the ribosome, the large subunit of the ribosome binds to the small unit, and translation is ready to begin. Therefore, translation begins when an mRNA connects to the small subunit of a ribosome.
A simple protein that makes up approximately 58% of the plasma proteins. Many act as transport molecules.
Albumin
These are the most abundant and form about 60% of all plasma proteins. They contribute to osmotic pressure, help to control water balance and are involved in the transport of substances in blood including drugs.
What is Plasma protein ?Plasma protein is the collective term for the proteins present in the blood.
Plasma proteins fall into several different groups and have numerous functions, including maintaining osmotic pressure, and transporting lipids, hormones, vitamins, and minerals.Immunoglobulins help fight infection and various other small amounts of enzymes, hormones, and vitamins.Learn more about Plasma protein here:
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A/an _________________________ is the surgical removal of a nephrolith through an incision in the back.
Nephrolithotomy is the surgical removal of a nephrolith through an incision in the back.
These procedures are treatments for kidney stones that are used in patients with large or irregularly shaped kidney stones, people with infections, stones that have not been broken up enough by SWL (extracorporeal shock wave lithotripsy) or those who are not candidates for another common stone treatment, ureteroscopy.
Stones bigger than 2 cm (the size of a marble) require this procedure.
Procedures involve entering the kidney through a small incision in the back. Once the surgeon gets to the kidney, a nephroscope (a miniature fiberoptic camera) , threaded in through the hole.
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Suppose your gram-stained a sample from a pure culture of bacteria and observed a field of red and purple cocci. Adjacent cells were not always the same color. What would you conclude?
If after gram-staining a pure bacterial culture red and purple cocci are observed and the adjacent cells were not of the same colour, It means it's an old stock of culture.
The Gram stain process is a multi-step differential staining procedure. Differential staining separates organisms based on how they respond to various stains. To put it another way, two organisms in a sample that has been stained differently might appear to be different colours.
Gram-positive and Gram-negative are the two primary subtypes of bacteria. Based on how these bacteria respond to the Gram stain, several types are identified. The hue of a Gram stain is purple. The bacteria in a sample will either stay purple or change pink or red when the stain and bacteria interact.
The bacteria are Gram-positive if they continue to be purple.
The bacteria are Gram-negative if they turn pink or crimson.
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Aseries of images displayed in sequence to create the illusion of movement is called ______________ .
Animation is the answer.
Animation is a method of manipulating a character and displaying it as a video. In traditional animation, you would draw or draw an image by hand on a transparent celluloid sheet, take a picture, or display it on film. Today, most animations are created using computer-generated images.
Animation is the quick display of a series of images to create the illusion of movement. The most common way to present an animation is as a movie film or video program. Simply put, animation brings our imagination to life.
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If a defibrillator manufacturer claims that its device terminates ventricular fibrillation on the first shock 95% of the time, you should:
If a defibrillator manufacturer claims that its device terminates ventricular fibrillation on the first shock 95% of the time, you should: recognize that this does not mean it will save more lives.
DefibrillatorThe purpose of defibrillators is to restore a normal heartbeat by shocking or sending an electric pulse to the heart. They are employed to stop or treat irregular heartbeats that are too slow or too fast, or arrhythmia. Defibrillators can also restart the heart's rhythm if it stops suddenly. Defibrillators operate differently depending on the type. People who are having cardiac arrest can be saved by using automated external defibrillators (AEDs), which are increasingly commonplace in many public areas. These gadgets can be used in an emergency by unskilled witnesses. People who have a high risk of developing a life-threatening arrhythmia may benefit from using other defibrillators to avoid sudden death.
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How would a biologist explain how an animal became well camouflaged to its environment?
More camouflaged individuals have the better chances of survival until all the individuals that remain are all well camouflaged.
What s natural selection?The term natural selection implies that organisms that we well adapted to their environment tend to survive better and have the opportunity to reproduce. This is based on the principle of the survival of the fittest.
These organisms tend to pass on these favorable traits to their offspring and thus the gene pool is changed as only the organisms that have these favorable genes remain.
If camouflage helps an organism to survive better in its habitat, then it follows that more camouflaged individuals have the better chances of survival until all the individuals that remain are all well camouflaged.
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NEED HELP I WILL FAIL
You are an anthropologist analyzing bone remains from the grave of an ancient female human. Within one of the bones, you find an unusually high concentration of collagen. What does this suggest about the ancient female? (2 points)
She broke a bone and then died before it was fully healed.
She broke a bone and then died a few hours later.
She broke a bone at a very young age, but it fully healed.
She broke a bone at a very young age, but it did not fully heal.
She broke a bone and then died before it was fully healed. Option A
What is collagen?The collagen is a substance that serves to strengthen the bones. However, if a person gets older, its production reduces thereby making the bones to weaken.
When a person breaks a bone, the body secretes a lot of collagen to help the bone to heal. Therefore, if there is a high concentration of collagen present, it indicates that she broke a bone and then died before it was fully healed. Option A
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Why is it difficult to test the sensory and learning abilities of a newborn?
Vision is the least developed sense at delivery as a womb is a dark location and there may be little possibility for development. Vision, like hearing, does increase unexpectedly over the early years of an infant's lifestyle.
The infant can see and hear what is happening around her and can communicate her desires and interests to others. mother and father can help their infants study with the aid of gambling with them. Infants have the ability to see faces and items of different shapes, sizes, and colors.
For infants, learning the senses is crucial for discovering the arena around them. Whilst toddlers see the face of a parent, they smile. They coo once they listen to a parent's voice or pull away from something hot after they contact it. If infants odor something terrible, they shrink back.
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The function of the thyroid cartilage (Adam's apple) is to: Prevent food and liquid from entering the larynx Provide support for the larynx Provide support for the thyroid Separate the lungs in the chest cavity
The function of the thyroid cartilage (Adam's apple) is to: Provide support for the larynx.
The tough and elastic tissue frames the forward portion of the larynx (voice box). It upholds and safeguards the vocal cords and makes an individual's voice. The thyroid cartilage likewise shapes Adam's apple, which appears as a lump on the front of the neck.
This cartilage is the biggest of these ligaments. It encompasses the front of the voice box and windpipe. It is framed by two laminae (plates of cartilage) that are melded at the front - this structures the V-Shaped thyroid notch of the Adam's Apple. Throat cartilage is more prominent in men than females and serves as a defensive capability. Thyroid Cartilage is adaptable and furthermore serves as a protective function structure inside the Larynx.
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Proteins are polymers produced by linking together amino acids, where the amino group of one will react with the acid group of another. What type of functional group is produced
The Functional group produced is Amide.
The most typical way to make amides is by reacting an acid chloride with ammonia, a 1o amine, or a 2o amine. In a similar procedure, an amide can be created by reacting an amine with a carboxylic acid using a coupling agent like DCC. An acid anhydride and an amine can be combined to create simple amides. Finally, a carboxylic acid and an amine can directly react to generate amides.
However, because to the severity of the circumstances, this response is not frequently used. Because the Y group of an amide's nitrogen-containing atom has a weak ability to act as a leaving group, amides are comparatively inert to nucleophilic acyl substitutions.
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