the _____(rinnie/weber)_____ test is a test for neural deafnessthe ____(barany/romberg)____ test is used to determine if vertigo is caused by a disorder in the patients inner ear or somewhere in the patients brain
Answers
The Weber test is a test for neural deafness, which is a type of hearing loss that is caused by damage to the auditory nerve or the parts of the brain that process sound.
In the Weber test, a tuning fork is placed on the midline of the patient's forehead, and the patient is asked to indicate in which ear the sound is heard more loudly.The Rinne test is another hearing test that can help differentiate between different types of hearing loss. In this test, a tuning fork is placed on the mastoid bone behind the ear, and the patient is asked to indicate when they can no longer hear the sound. Then, the tuning fork is held near the ear without touching it, and the patient is asked to indicate when they can no longer hear the sound. The results of this test can indicate whether the patient has conductive hearing loss or sensorineural hearing loss.
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Related Questions
What is the link between photosynthesis and respiration?
A. They have the same function, but one is used in plants and one is used in animals.
O B. Photosynthesis recycles oxygen, while respiration recycles carbon dioxide.
C. One recycles energy, the other recycles biomass.
D. They are opposites and recycle each other's materials.
Answers
Answer: D. They are opposites and recycle each other's materials.
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose and cellular respiration converts oxygen and glucose into water and carbon dioxide.
An element crystallizes in a face-centered cubic lattice, and it has a density of 1. 45 g/cm3. The edge of its unit cell is 4. 52x10-8 cm. How many atoms are in each unit cell? what is the volume of a unit cell? what is the mass of a unit cell? calculate an approximate atomic mass for the element.
Answers
The values of the no of atoms in each unit cell, the volume of a unit cell, the mass of a unit cell , Atomic mass for the element respectively are 4, 9.2345*10-23 cm³, 1.34x10 gm, 20.
Given,
Lattice is fcc and has a density of 1.45 g/cm³.
Edge length, a=4.52*10 cm
The total number of atoms in fcc lattice,
At corner = 1/8*8 =1
At face = 1/2*6 =3
Total number of particles = 3 + 1 =4
The volume of the unit cell,
Volume of unit cell = a³ =(4.52*10 cm)
=9.2345*10-23 cm³
The mass of the unit cell
Mass = Density*Volume
Mass = 1.45g/cm * 9.2345x10^-23
=1.34x10 gm
The atomic mass of the element
Mass of one atom =1.34x10/4 g
=3.35x10 gm
Atomic mass of the element = mass in gm/1amu
= 3.35×10 g /1.66x1024 g
= 20
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How does the fermentation of pyruvic acidin cells contribute to the formation of ATP? A. It completes the oxidation of glucose to CO2, creating ATP. B. It generates lactic acid, which cycles back through the Krebs cycle, producing 2 ATP molecules. C. It converts FADH2 to phosphate, which bonds with ADP. D. It produces 2 NAD+ molecules, which cycle back to fuel the glycolysis reaction, allowing 2 ATP molecules to be produced.
Answers
Answer:
How does the fermentation of pyruvic acid in cells contribute to the formation of ATP? ... It produces 2 NAD+ molecules, which cycle back to fuel the glycolysis reaction, allowing 2 ATP molecules to be produced.
Explanation:
in this lab, the three flocks of birds changed in numbers between generation 1 and generation 3. why? check all reasons.
Answers
The three flocks of birds changed in numbers between generation 1 and generation 3 for a variety of reasons like Natural selection, Genetic drift, Migration, Changes in the environment, and Predation.
1. Natural selection: Some of the birds may have had traits that allowed them to better adapt to their environment and survive, leading to an increase in their numbers.
2. Genetic drift: Random changes in the frequency of alleles in a population can cause changes in the number of birds in each flock.
3. Migration: Some of the birds may have moved to different areas, causing a change in the number of birds in each flock.
4. Changes in the environment: Changes in the availability of food, water, or shelter can affect the number of birds in each flock.
5. Predation: The presence of predators can affect the number of birds in each flock.
It is likely that a combination of these factors contributed to the changes in the numbers of birds in each flock between generation 1 and generation 3.
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Complete the sentence: During periods of weight loss, the ________ of fat cells dwindles, but not their __________. Group of answer choices number, size shape, size size, number number, shape
Answers
As their contents are used for energy during weight loss, fat cells get smaller in size, but their overall number doesn't change.
Where Does Fat Go When Weight Is Lost?Fats are liberated from fat cells and transferred to the mitochondria, the energy-producing organelles in your body's cells, by sustaining a steady calorie deficit. Here, a number of procedures break down the fat to create energy.These same cells may become smaller when you lose fat, yet they continue to exist in roughly the same numbers. Therefore, fewer fat cells, not more, are the main cause of changes in body form.Also implied by this is that even when you lose weight, fat cells are still present and can readily regain their original size if efforts are not made to keep the weight off.To learn more about Weight loss refer to:
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The function of Sperm cells is _____________
Answers
Answer:
It is to be released and meet up with the female egg cell.
Explanation:
which of the following accurately describes meristematic plant cells? meristematic cells are undifferentiated cells that produce new cells for growth. meristematic cells increase the surface area of dermal tissue by developing root hairs. in mature plant stems the meristematic cells are located in the center of the plant. xylem, phloem, and cambium are three subdivisions of meristematic cells.
Answers
The correct statement describing meristematic plant cells is Meristematic cells are undifferentiated cells that produce new cells for growth.
These cells are responsible for the growth and development of plants and are found in areas called meristems, which can be located at the tips of roots and shoots, as well as in other parts of the plant. The meristematic cells do not differentiate into specialized cell types until they are needed for a specific function.
Xylem, phloem, and cambium are three types of specialized cells that develop from meristematic cells but are not subdivisions of meristematic cells themselves. Meristematic cells do not directly increase the surface area of dermal tissue by developing root hairs, but rather contribute to the overall growth and development of the plant.
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please help mee! this hw is so hard
Answers
Answer:
100%
Explanation:
After solving the Punnett square you get Tt, Tt, Tt, Tt. Therefore 100% of the offspring is Tt, or heterozygous (meaning mixed).
Answer:
the answer is 100 percent
Explanation:
hetero meaning 2 different. If you fill in the punnet, would get Tt, Tt, Tt, and Tt meaning there are 4/4 that are the same aka 100%
ATP synthase molecules in mitochondria form dimers that are localized mostly to sharp cristae ridges. What should happen if subunits of the synthase that are required for dimerization are mutated in yeast?
Answers
Answer: To increase the capacity of the mitochondrion to synthesize ATP, the inner membrane is folded to form cristae. These folds allow a much greater amount of electron transport chain enzymes and ATP synthase to be packed into the mitochondrion.
Explanation: i got it right
Answer:
The insufficient ATP synthase phosphorylating capacity with respect to the respiratory chain results in an impaired energy provision and an increased ROS production due to an elevated mitochondrial membrane potential (1,16).
Explanation:
what is the source of the rna used to construct a cdna library? mrna isolated from cells or tissues mrnas chemically synthesized from database sequences mrna isolated in a restriction digest
Answers
The source of RNA used to construct a cDNA library depends on the specific research question and available resources. Isolating mRNA from cells or tissues is the most common method used, as it allows for a comprehensive analysis of gene expression.
The source of the RNA used to construct a cDNA library typically comes from mRNA isolated from cells or tissues. This is because mRNA contains the coding regions of genes, making it an ideal starting material for creating a cDNA library.
The mRNA is extracted from the cells or tissues using various methods, including column chromatography or magnetic bead selection. Once isolated, the mRNA is converted into cDNA using reverse transcriptase, an enzyme that synthesizes DNA using mRNA as a template.
Alternatively, mRNA can also be chemically synthesized from database sequences. This approach can be useful when a specific gene of interest is not expressed in the cell or tissue sample being used. By synthesizing the mRNA sequence, researchers can ensure that the cDNA library includes the desired gene. However, this method can be expensive and time-consuming.
Another approach is to isolate mRNA using a restriction digest. This involves digesting total RNA with a restriction enzyme that cuts at specific recognition sites within the RNA sequence. The resulting fragments are then selected for size and used to create a cDNA library. While this method can be useful, it may not capture all of the expressed genes, as not all mRNA may contain the specific restriction sites used for digestion.
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Which is the best prediction about the cell structures of muscle cells
Answers
The cell structure that produces energy is the mitochondrion. In this manner, the best expectation is that muscle cells contain an enormous number of mitochondria to give more energy. The correct answer is (B).
Skeletal muscle filaments are long, multinucleated cells. The layer of the cell is the sarcolemma; the cytoplasm of the cell is the sarcoplasm. The sarcoplasmic reticulum (SR) is a type of endoplasmic reticulum. Muscle filaments are made out of myofibrils which are made out of sarcomeres connected in series.
Each strand is comprised of sub-units called "sarcomeres." These sarcomeres contain the "constriction proteins" called actin and myosin. The synthetic collaborations of these two proteins are answerable for the capacities of the muscle to contract (abbreviate), unwind and deliver force (important to move the body or articles).
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Q- Which is the best prediction about the cell structures of muscle cells?
A. Muscle cells have a large volume of cytoplasm so that the cell can easily change shape.
B. Muscle cells contain a large number of mitochondria in order to provide more energy.
C. Muscle cells do not have nuclei because they do not need to produce proteins.
D. Muscle cells are surrounded by cell walls so that they are strong enough to move bones.
a dx of adenodynia means there is pain in: group of answer choices a gland. the gallbladder. the pelvic area. the intestines. the stomach.
Answers
The term "adenodynia" refers to pain in a gland. Adenodynia is defined as the presence of pain in a gland or a group of glands that are typically caused by inflammation. Depending on the gland that is involved, the patient may experience different types of pain.
Adenodynia is a term that is most commonly used to refer to pain in the lymph nodes or in the thyroid gland. This type of pain is typically caused by an infection or an autoimmune condition.
In cases where the lymph nodes are affected, the pain may be felt in the neck, groin, or armpits. Lymph nodes are important structures in the body that are responsible for filtering out harmful substances and producing immune cells. When these structures become inflamed, they can become swollen and tender to the touch. This can lead to pain, discomfort, and other symptoms.
In cases where the thyroid gland is affected, the pain may be felt in the neck or throat. The thyroid gland is a butterfly-shaped gland that is located in the neck.
It produces hormones that regulate metabolism, growth, and development. When this gland becomes inflamed, it can lead to a condition called thyroiditis. This condition can cause pain, tenderness, and swelling in the neck.
In conclusion, a diagnosis of adenodynia indicates that there is pain in a gland or a group of glands. The specific location of the pain depends on which gland is affected. Lymph nodes and the thyroid gland are the most common glands that are affected by adenodynia, and the pain may be felt in the neck, groin, or armpits.
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life a raindrop 500 words PLZZZZZZ 100 POINTS I NEED THIS Today you will be writing a creative story about what a raindrop goes through from leaving a cloud to entering a lake or ocean. but try to be as in depth with the direction that water would take on its way through a watershed.
Answers
Why is hydrotropism helpful for a
plant?
O It helps plants reach towards objects
O It creates a brighter colored plant to
attract insects
It attracts water to a plant without the
plant needing to move
O It encourages plant roots to grow toward
water so that it can receive the water it
needs.
Answers
Answer:
Plants utilize hydrotropism to bend their roots towards moistened areas of soil in the presence of moisture gradients (Takahashi et al., ; Moriwaki et al., ). Because roots play an important role in water uptake, hydrotropism may help plants to obtain water efficiently under drought conditions.
Where would your memory of last year's family holiday be processed in?
Answers
Your memory of last year's family holiday would be processed in various regions of your brain, primarily involving the hippocampus and the prefrontal cortex.
The hippocampus, located in the medial temporal lobe, plays a crucial role in the formation, organization, and retrieval of long-term memories, including episodic memories such as a family holiday. It consolidates information from short-term memory to long-term memory and also aids in the spatial navigation of familiar places.
The prefrontal cortex, situated in the frontal lobe, is responsible for higher cognitive functions, including decision making, planning, and organizing. It contributes to memory processing by managing the working memory and recalling specific details associated with your holiday experience.
In summary, your memory of last year's family holiday is processed through a complex interaction between various brain regions, with the hippocampus and prefrontal cortex playing key roles in forming, organizing, and retrieving the memory, while the amygdala adds emotional context to the experience.
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Define target organ.
Answers
What role does a reactant play?
Answers
The concentration of the reactants also plays an important role in determining the rate of a chemical reaction. When more reactant molecules are available, more collisions take place, increasing the overall rate of the reaction at the same conditions.
Answer:
Concentrate of the Reactants
The concentration of the reactants also plays an important role in determining the rate of a chemical reaction. According to the collision theory, for most of the reactions, increasing the concentration of the reactants is known to increase the rate of the reaction.
help me please brainlest rewarded
Answers
Answer:
I believe the answer is B.) organelles, I hope this helps you! :)
*VOCABULARY*
Which of the following is not related to metallic bond?
A. Alloy
B. Shared electrons
C. Transferred electrons
D. Sea of electrons
Answers
Shared electrons is not related to metallic bond.
Positively charged metal ions and the electrons that surround them are attracted to one another, creating metallic bonds. Covalent and ionic bond electrons are shared, but metallic bond electrons are delocalized.
What about metallic bond?Atoms in a metallic substance are held together by a force called the metallic bond. Atoms in such a solid are packed closely together.The attraction between positively charged metal nuclei and their delocalized valence electrons causes metallic bonding, a type of chemical bonding between two or more metal atoms.Metallic bonding is particularly prevalent in minerals involving transition metals. In most cases, the outermost electron shell of each of the metal atoms overlaps with a significant number of neighboring atoms. Minerals with metallic bonding include gold, silver, and copper. Metallically bound compounds are efficient heat and electricity conductors because valence electrons can travel freely throughout the structure. Strength, malleability, ductility, thermal and electrical conductivity, opacity, and brilliance are a few qualities of metallic bonding. These features serve as important findings to define metallic bonding. Electrostatic attraction between metal captions and delocalized electrons produces metallic bonds. Many of the physical characteristics of metals, like conductivity and malleability, are explained by the type of metallic bonding that exists.Learn more about metallic bonds here:
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Which of the following events occurs during prophase? Choose all that apply.
A.Chromosome condensation
B.Movement of centrosomes to opposite poles
C.Separation of sister chromatids
D.Dissociation of the nuclear envelope
Lining up of sister chromatids along the center line of the cell
E.Formation of mitotic spindles
Answers
During prophase chromosome condensation specifically occurs in preparation for cell division, option A is correct.
Prophase marks the first stage of mitosis, the process by which a cell's nucleus divides into two identical daughter nuclei. During prophase, the chromatin, which is the DNA and associated proteins, condenses into tightly coiled structures known as chromosome. This condensation allows for easier manipulation and separation of genetic material during cell division.
While the other events like movement of centrosomes to opposite poles, separation of sister chromatids, dissociation of the nuclear envelope lining up of sister chromatids along the center line of the cell, and formation of mitotic spindles are important stages in mitosis, they do not specifically occur during prophase. These events take place in subsequent stages such as prometaphase, metaphase, and anaphase, option A is correct.
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Which is one energy transformations that take place during cellular respiration?
______ energy to _________ energy
Answers
if θ2 = 17.1 ∘ , what is the refractive index n of the transparent slab? n = nothing
Answers
The refractive index of the transparent slab is approximately 1.726.
To determine the refractive index of the transparent slab, we can use Snell's law, which relates the angles of incidence and refraction to the refractive indices of the media involved.
Snell's law states:
n₁ × sin(θ₁) = n₂ × sin(θ₂)
where
n₁ = refractive index of the incident medium
θ₁ = angle of incidence
n₂ = refractive index of the refracted medium (transparent slab)
θ₂ = angle of refraction
In this case, we have the following values:
θ₁ = 35.5°
θ₂ = 17.1°
Let's assume the incident medium has a refractive index of n₁ = 1 (usually air).
Using Snell's law, we can rearrange the equation to solve for the refractive index of the transparent slab (n₂):
n₂ = n₁ × sin(θ₁) ÷ sin(θ₂)
Substituting the values, we get:
n₂ = 1 × sin(35.5°) ÷ sin(17.1°)
Calculating this expression:
n₂ = 1.726
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The complete question is:
Take θ₁ = 35.5 ∘, and if θ₂ = 17.1∘∘, what is the refractive index n of the transparent slab?
the tightest attachment between a cell and its extracellular matrix is seen at the site where an epithelial cell is attached to the underlying basement membrane. the specialized adhesive structure found at such a site is called a(n) .
Answers
The tightest attachment between a cell and its extracellular matrix is seen at the site where an epithelial cell is attached to the underlying basement membrane. the specialized adhesive structure found at such a site is called hemidesmosome
Hemidesmosomes are multiprotein complexes that aid in the persistent adhesion of basal epithelial cells to the basement membrane. Hemidesmosomes are mechanically stable due to the intricate connections of a few protein components that combine to form a membrane-embedded, highly structured complex. Hemidesmosomes are multiprotein complexes that aid in the persistent adhesion of basal epithelial cells to the basement membrane.
Hemidesmosomes are mechanically stable due to the intricate connections of a few protein components that combine to form a membrane-embedded, highly structured complex. The keratinocytes of the skin's epidermis contain hemidesmosomes, which resemble microscopic stud-like structures and link to the extracellular matrix. They resemble desmosomes when seen under an electron microscope, but desmosomes cling to nearby cells.
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Which of the following are controversies over water usage in the United States? Select the three correct answers.(2 points)
a. whether dams increase the salt level of water
b. whether people should drink bottled or tap water
c. whether people should build dams on rivers
d. whether there are hidden costs to tap water
e. whether water treatment should be privatized
f. whether dams impact the volume of rivers
Answers
Because to their impact on the environment and wildlife, the construction and water usage of dams across rivers is a s source of controversy in the US.
What is water usage?Water usage refers to the various ways and water is used in th society.
The usage of water can either ensure its continuous availability as well as sustainable environment and habitat for wildlife.
Water usage comes with a lot of controversies especially their impact on the environment and wildlife.
Three controversies regarding water usage in the US are as follows:
whether dams increase the salt level of waterwhether people should build dams on riverswhether dams impact the volume of riversTherefore, due to their impact on the environment and wildlife, the construction and usage of dams across rivers is a s source of controversy in the US.
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1) during photosynthesis..... from the carbon dioxide is made of glucose
2) during...... glucose is broken down for it's energy and carbon dioxide released as ...
3) .... is the process that bacteria use to cause the decay of death organisms
Answers
Answer:Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed.
Explanation:
The inner and outer surfaces of a cell membrane carry a negative and a positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane. The thickness of the cell membrane is 8.0×10
−9
m. What is the magnitude of the electric field in the membrane?
Answers
The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
The given values are:
Thickness of the cell membrane = d = 8.0 x 10⁻⁹ m
Potential difference across the membrane = V = 0.070 V
The electric field E is given by the formula: E = V/d
The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
A cell membrane is made up of two layers of lipid molecules, which are arranged in a specific way that separates the inside and outside of the cell. The inner and outer surfaces of a cell membrane carry a negative and a positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane.
The thickness of the cell membrane is 8.0×10⁻⁹ m. To determine the magnitude of the electric field in the membrane, we use the formula:
E = V/d
where E is the electric field, V is the potential difference, and d is the thickness of the membrane.
Substituting the given values, we get:
E = 0.070 V / 8.0×10⁻¹⁹ m E = 8.75 x 10⁶ V/m
Therefore, the magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
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Which of the elements in the table has the largest number of neutrons?
Answers
Answer:
Calcium
Explanation:
Calcium has 20 neutrons
Neon has 10 neutrons
Boron has 6 neutrons
Lithium has 4 neutrons
So it would be calcium
Ethical communication with clients dictates that psychologists will keep their conversations confidential unless required by law. Please select the best answer from the choices provided T F
Answers
Answer:
True
Explanation:
Answer:The correct answer is T.
Explanation:
Psychologists should provide trust and confidence to their clients, so that they feel free and safe to express themselves. Moreover, as health professionals they should act in line with the 21st century version of the Hippocratic Oath, the first declaration of medical ethics (back in Ancient Greece), which included medical confidence and non-maleficence as its main principles.
lake tefillin is a large freshwater lake that is popular for recreation. one year, the managers of the lake introduced a population of rainbow trout to the lake. the graph shows the growth of the population over several years.
which best describes the growth pattern of the rainbow trout?
a) exponential growth,because the lake provides unlimited resources to the population
b) logistic growth, because the effect of limiting factors increased with the population size
c) exponential growth, because limiting factors are always affecting the population
d) logistic growth, because the lake provides unlimited resources until the population reaches carrying capacity
Answers
Answer:
b) logistic growth, because the effect of limiting factors increased with the population size
Explanation:
The S-shaped curve in the graph above depicts a typical logistic growth pattern.
In this type of growth pattern, there is an initially exponential growth at the beginning when limiting factors of growth are minimal. As the initial population increases, resources for growth become limited. Growth starts to slow down. And at some point, insignificant increase in population growth sets in. This is depicted on the graph where the tail end of the curve levels of and fluctuates.
This logistic growth curve shows that, over the years, the limiting factors that slows down growth of Rainbow trout population increases as the population of Rainbow trout increased. This led to the growth rate slowing down and eventually levels up with no real significant change in population size of Rainbow Trout.
whats the Location and the Structure for prestsynaptic membrane
Answers
Answer:
The presynaptic membrane is formed by the part of the presynaptic axon terminal forming the synapse and that of the postsynaptic neuron is called the postsynaptic membrane. The space between the presynaptic and postsynaptic membrane is called the synaptic cleft. These three structures together form the synapse.
Explanation: