Which muscles act to propel food down the length of the pharynx to the esophagus?

Answers

Answer 1
Pharyngeal constrictor muscles (superior, middle and inferior)

The pharyngeal constrictor muscles are a group of muscles that form the lumen of the pharynx. After you swallow, an act that you have control, it starts a involuntary contraction by these muscles to propel  the bolus downwards.




Related Questions

Do not run the dishwasher until it is​ ______ full.

Answers

Answer:

No comparison

Explanation:

I got the answer correct

What is the term for the circular movement of material inside Earths mantle?

A. Density
B. Convection
C. Conservation
D. Equilibrium

Answers

It is convection because there is a convection current in which hot air rises and cools through different temperature
The correct option is B.
Convection is the process by which heat is transfer in fluids as a result of bulk movement of molecules. Mantle convection refers to the slow movement of the earth solid material which is caused by the convection current which brings heat from the interior of the earth to the earth surface. 

The process of gene expression involves ____.
replicating a cell's genetic makeup during division
influencing the behavior of a segment of society
converting genetic instructions into a feature of a living cell
chromosomal recombination during gamete formation

Answers

The process of gene expression involves converting genetic instructions into a feature of a living cell.

Gene expression is the process by which instruction of our DNA is converted into functional output called as protein .

The example of gene expression can be differential expression of genes in human cells. human cells comprises of same DNA but each have different structures and functions. for example liver and brain cells have same amount of DNA but they have completely different function . Gene expression is influenced by many factors that includes mutation , molecules within the cells or epistasis.

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Final answer:

Gene expression involves converting DNA instructions into proteins through transcription and translation, enabling cells to perform specific functions and differentiate into various types within a multicellular organism.

Explanation:

The process of gene expression involves converting genetic instructions into a feature of a living cell by utilizing the information encoded in the cell's DNA. Specifically, gene expression includes two crucial processes: transcription and translation. During transcription, the information from a gene (DNA) is copied into messenger RNA (mRNA). Subsequently, during translation, the mRNA serves as a template to link specific amino acids in the correct order to form a protein, guided by the sequence of the transcript. This process is essential for regulating the biological functions of the cell and ensuring that proteins are synthesized as needed, contributing to the cell's structure and function.

Gene expression is also a key factor in cellular differentiation and organismal development. Even though all cells in a multicellular organism contain the same DNA, different cell types express different subsets of genes. This regulation of gene expression permits the formation of various cell types and tissues and allows for complex life forms to exist. The chapter overviews provided discuss how gene expression is regulated, touching on aspects such as transcriptional regulation, epigenetics, and the effects of environmental factors on gene expression patterns. Overall, controlling gene expression is vital for normal development and for the cell's response to environmental changes.

The Calvin cycle and the Krebs cycle are referred to as cycles of chemical reactions because they
occur inside organelles.
start over continually.
are part of the carbon cycle.
allow energy to flow in ecosystems.

Answers

they start over continually and don't stop so it is consistent

The Calvin cycle and the Krebs cycle are referred to as cycles of chemical start over continually.

What is Calvin cycle?

The Calvin cycle is a set of chemical events that occur in plants as carbon dioxide is reduced or converted into glucose. It is also known as the Calvin-Benson-Bassham (CBB) cycle or the C3 cycle.

The C3 cycle relates to photosynthesis's nighttime adaptation. It is impliedly light-sensitive, and light-dependent processes produce the fundamental energy carriers.

The Calvin cycle, sometimes referred to as the light-independent processes, is the second step in the process of photosynthesis. The Calvin Cycle, also known as the C3 cycle, is the process by which carbon dioxide is converted into carbohydrates. It was discovered by Melvin Calvin.

Therefore, The Calvin cycle and the Krebs cycle are referred to as cycles of chemical start over continually.

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hurry whoever answers first will get the brainliest

Mateo has a fish in a fish tank. Every day, he feeds the fish flakes of food. He also changes the water as necessary. He has an aerator that pumps bubbles into the tank.

Which sentence shows the fish’s need for air?

A. Mateo has a fish in a fish tank.

B.Every day, he feeds the fish flakes of food.

C.He also changes the water as necessary.

D.He has an aerator that pumps bubbles into the tank.

Answers

D. He has an aerator that pumps bubbles into the tank
The correct answer would be D) He has an aerator that pumps bubbles into the tank. Its not A) because that doesn't mean fish needs air, not B) because that's needed for the fish to LIVE, not breath air, not C) because that's for helping the fish stay alive in the water.

Meteorologists notice a low-pressure area developing over warm ocean water. Which type of storm is likely to form?

Answers

i hope this is right a cyclone or hurricane

Cyclone/hurricane good luck

Both glucose and amino acids claim to have a special relationship with their transport proteins. what is the basis for their claims

Answers

Both glucose and amino acids are needed inside the cells, but these molecules are too big to pass through the cell membrane on their own. Therefore, they need the help of the transport proteins which are located on the membrane of the cells. The transport proteins help both glucose and amino acid to enter the cells through facilitated diffusion.
Final answer:

Glucose is transported by GLUTs through facilitated diffusion, while amino acids are primarily absorbed through active transport mechanisms.

Explanation:

Glucose and amino acids have a special relationship with their respective transport proteins. Glucose is transported through carrier proteins called glucose transport proteins (GLUTs) in the body. These transporters move glucose by facilitated diffusion into the cell interior. Amino acids, on the other hand, are primarily absorbed in the small intestine through active transport mechanisms that are linked to the active transport of sodium.

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Why would you expect there to be fewer foxes than caterpillars in this ecosystem?

Answers

because caterpillars can mas produce and foxes can only have 1-5 babies. 

Which plant cell structure stores large amounts of chemicals—including salts, minerals, proteins, and water—for the cell and helps the cell maintain its shape? plastids chloroplasts central vacuole cell wall

Answers

Always been taught that the vacuole holds the cell's water. I don't know about the other things 

The correct answer is central vacuole.

The central vacuoles are found in the plant cell which is a fluid filled organelle. The vacuole is filled with water, some salts, minerals and protein which helps to maintain the cell shape.

This is very big sized organelle that maintains the rigidity and turgor pressure of the cell.

This also maintains the pH of the cell and transport of the materials from inside to outside of the cell.

What is an advantage of recycling metals?

Answers

Instead of wasting natural resources we can reuse them and save those rescources
Recycling metal reduces greenhouse gas emissions and uses less energy than making metal from virgin ore

what process takes place in meiosis but not in mitosis

Answers

Meiosis involves homologous chromosome pairing and crossing over, leading to the formation of genetically diverse haploid gametes, unlike mitosis.

In meiosis, a specialized form of cell division that occurs in sexually-reproducing organisms, two rounds of nuclear division follow a single round of DNA replication. This process results in the formation of four genetically unique haploid cells (gametes), each containing half the number of chromosomes as the original parent cell. The key features of meiosis that do not occur in mitosis are homologous chromosome pairing and crossing over.

During meiosis I, homologous chromosomes pair up and exchange genetic material through crossing over, promoting genetic diversity. In mitosis, no such pairing or crossing over occurs, and the resulting daughter cells are genetically identical to the parent cell, maintaining the same chromosome number. Meiosis plays a crucial role in sexual reproduction, ensuring genetic variation among offspring.

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The complete question is:

What process takes place in meiosis but not in mitosis?

What does the color indicate about the strength of the acid or base?

Answers

yellow to red is an acidic solution
blue to violet is bases
green color is a solution is neutral

Answer:

Chemists use the Universal Indicator to identity acids and bases, as follows:

Strong acids: Red: 1, 2, 3.

Weak acids: Orange: 4, 5.

Neutral acids: Yellow, 6, 7. Green: 8. Blue: 9, 10. (blue is already weak base.

Weak base: Purple: 11, 12, 13, 14. (Last two are Strong base).

Plant cells do not contain contractile vacuoles. what happens when a plant is watered? the cells swell. the cells shrink. the cells stay the same size.

Answers

The plant cells will swell when lacking contractile vacuoles. This us because without the vacuoles expanding from the intake of water, the cytoplasm will uptake more water (via osmosis) and expand.

Green plants produce their own food during photosynthesis. which of these statements about photosynthesis is true?

A. Water is one product of photosynthesis.

B. Oxygen is one product of photosynthesis.

C. Chlorophy11 is one product of photosynthesis

D. Carbon dioxide is one product of photosynthesis

Answers

water is one product of photosynthesis

Answer:

B.

Explanation:

Water is one of the  reactants in photosynthesis. It is split into electrons, oxygen, and Hydrogen ions in first reaction of photosynthesis called photolysis of water. Therefore water is not a product.

Carbondioxide is another reactant  of photosynthesis that is reduced in the light independent stage of photsynthesis by H+ from photolysis to give Glucose.This reduction takes place in the Calvin cycle, in the presence of enzyme rubisco and substrate ribulose bisphosphate, The product is 2 molecules of 3C-glycerate phosphate, which later oxidized with hydrolysis of ATP, to form 2-Triose phosphate. The latter is converted to  glucose, Amino Acids, or fatty acids.

The Pigments for trapping energy in sunlight in the leaf chloroplast is called chlorophyll.It contains photosystems I and II. It is excited with the impact  of sunlight absorbed by the photo systems  I and II, and the electron is pick up by electron acceptors.  The electron is transferred  in cascade of reactions  which ends with  the  primary pigments of photosystem I absorbing electron from photosystem II. The primary pigment replaced the lost electron with electron from photolysis of water above.

Oxygen is the by-product of photosyntheis, it is produced when water is split in Photolysis of water.Oxygen is a by-product because it is not needed in subsequent stages of photosynthesis to  give the end products.it is given off  for cellular respiration in mammals.Therefore this is the correct answer.

Which of the following indicators would most likely use the statement above as a justification for its measurements?

Answers

Relationships with family, friends, and community far outweigh money or things. The Gross Happiness Index would most likely be used as a justification for its measurements with the statement above.

The answer is letter C. the Gross Happiness Index.

Hope this helps.
the Gross Happiness Index.

Hope this helps.

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these are an important source of fast short term energy

Answers

the correct answer is carbohydrates because this fat can perdus both short and fast energy.
     Hope this helps 
GLUCOSE is an important source of fast, short term energy.
When energy is needed to carry out an intensive work that will last about two minutes, ATP can be generated form glucose via anaerobic process which is called anaerobic glycolysis. This process produces two molecules of ATP and two molecules of pyruvate  from one molecule of glucose. The ATP produce is used to carry out the short term work.

Which is the last step that occurred in the speciation of the Galápagos finches? A. ecological competition B. geographic isolation C. establishing genetic equilibrium D. founders arrived

Answers

Answer:

The correct answer is option A, that is, ecological competition.

Explanation:

The small number of finches reached the Galapagos Island and established themselves. The phenomenon of the geographical isolation of the Galapagos Islands resulted in the inhibition of interbreeding between the populations of finches found on the different islands.  

The distinct populations of finches gathered changes to get amended to accessible food. The gathering of genetic variations and geographical isolation resulted in the reproductive isolation between them. In order to get better amended with the surroundings, the population of finches encountered with enhanced genetic variations between them, which is considered as ecological competition. The repetition of the entire procedure of the chain of islands resulted in the evolution of distinct species of finches.  

What is one way the stage directions help contribute meaning to the scene

Answers

they help contribute as some of the actions speak greater than words so for example emotions can tell the audience a thousand things

An instructor says that this disease has been nearly eradicated in developed countries. which disease is probably being discussed?

Answers

Nowadays, different countries are constantly emerging and expanding their liabilities which may include the field of medicine. The disease that is being discussed by the instructor that is considered nearly eradicated is probably the measles. This disease is caused by Paramyxovirus which is a major respiratory pathogen among infants and young children. Measles is also known as “rubeola virus”, an acute, highly respiratory symptoms and a maculopapular rash that affects the mouth, head, body and extremities. It begins with the appearance of Koplik spots which may end up to some complications like symptomatic encephalitis and subacute sclerosing panencephalitis(SSPE). In order to prevent this type of disease MMR(Measles, Mumps & Rubella) Vaccine is needed. According to some of the reports, it is still common to some of the countries, but WHO campaigns to eradicate the disease worldwide by the year 2020.


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Destruction of tundra vegetation will likely result in _____.


lessening of soil moisture


deepening of the active zone


freezing of the soil


melting of the permafrost

Answers

The answer would be 'melting of the permafrost'since the Tundra relies on Permafrost for its soil and other sources, it can do a great damage if it loses its
 permafrost.

Answer:

Melting of the permafrost.

Explanation:

Tundra is a biome that is characterised by its frozen subsoil, lack of tree vegetation or, in any case, natural trees.

So, permafrost is a soil layer that is permanently frozen, so, if trundra vegetation is destroyed, this layer could no be frozen any more.

Collaborations between environmental groups and business interests on environmental issues have resulted in successful partnerships.
T/F ??

Answers

this is true as environmental groups campaign to conserve natural places to protect them

It is true that collaboration between environmental groups and business interests on environmental issues results in conservation of nature.

What do you mean by environmental issues?"Environmental issues may include climate change, pollution, environmental degradation, and resource depletion."It degrades the quality of nature.What do you mean by conservation of nature?"Conservation of nature focused on protecting species from extinction, maintaining and restoring habitats, enhancing ecosystem services, and protecting biological diversity."Many environmental groups and business interest on environmental issues have taken many initiatives towards nature conservation.

Hence, the given statement is true.

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Why do new species often form on new islands?


Their populations can explode.


They evolve to fill new niches.


New islands have a lot of vegetation.


There is increased competition.

Answers

New species often form on new islands because they evolve to fill new niches 
the answer is B. This is proved by Darwin's visit to the Galapagos and he noticed all the different finches but still resembles the ones on the mainland

Like a panic button, the _____ issues an alert, summoning other parts of the brain that play a role in the experience of fear

Answers

Final answer:

The amygdala acts like a panic button in the brain, alerting the hypothalamus and other brain regions involved in the fear response, which includes initiating the fight-or-flight response and releasing stress hormones.

Explanation:

Like a panic button, the amygdala issues an alert, summoning other parts of the brain that play a role in the experience of fear. When you experience anxiety or fright, the amygdala signals the hypothalamus along the medial forebrain bundle, which in turn stimulates the fight-or-flight response. Consequently, the hypothalamus also prompts the release of stress hormones, such as adrenaline and cortisol, through its control of the endocrine system in reaction to amygdala input. These hormones prepare the body to either confront the threat or escape from it.

In addition to the amygdala and hypothalamus, other structures involved in fear response include the locus coeruleus, an area of the brainstem that releases norepinephrine to trigger the fight-or-flight response and has been linked to panic disorder. The fear circuit runs from the central amygdala to the periaqueductal gray in the midbrain, which is sensitive to multiple neurotransmitters and neuromodulators involved in the regulation of fear and the inhibition of these responses by tranquilizers like benzodiazepines.

A boy is pushing on a heavy door, trying to slide it open. His friend stands behind him and helps him push. How have the forces changed?   A. The net force applied will increase.   B. The net force will decrease.   C. There will be less friction.   D. The applied force will not change.

Answers

A boy is pushing on a heavy door, trying to slide it open. His friend stands behind him and helps him push. How have the forces changed?   A. The net force applied will increase. 

In the given case, the net force applied will increase. The correct option is A.

What is force?

Force is characterized in physics as the push or pull on a mass artifact that tends to cause rotation velocity.

Force is an external agent that can modify the state of rest or motion of a specific body. It has a magnitude as well as a direction.

The external entity that causes motion is force. There are two types of forces namely contact forces and non-contact forces.

The total amount of all the forces acting on an object is defined as the net force.

A mass can be accelerated by net force. Another force acts on a body at rest or in motion. When there are a large number of forces in a system, the net force is used.

In the given scenario, as boy is pushing on a heavy door, trying to slide it open and his friend stands behind him and helps him push this will increase the net force applied.

Thus, the correct option is A.

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The cochlea contains ___________ which send(s) messages through the auditory nerve to the areas of the brain that are responsible for interpreting auditory information.

Answers

The cochlea contains organ of cortis which send(s) messages through the auditory nerve to the areas of the brain that are responsible for interpreting auditory information. The Organ of cortis contains the hair cells and nerve receptors for hearing. When the hair cells has been stimulated, it will react to specific sound frequencies. However, only certain hair cells will be stimulated based on the pitch of the sound. The signals produced by the hair cells will turn into nerve impulses which will be sent out by the cochlear portion of the auditory nerve into the brain. This auditory nerve will carry the impulses from cochlea into the mid-brain which is the cochlear nucleus. On other brain pathways that end in the auditory cortex of the brain these nerve impulses were carried.

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The carrying capacity for a species represents the maximum number of _____ an ecosystem can support.


births


new members


deaths


individuals

Answers

The answer to this is individuals.

Answer: The correct answer for the blank is-

individuals.

Carrying capacity for a particular species can be described as the maximum number of organisms/ individuals in a population that can be supported by an ecosystem.

It varies from species to species in a habitat and is guided by several factors ( such as availability of food resources, social requirements, shelter for the species)

There is an increase in the average size of population below carrying capacity ( as resources are abundant) while population size tends to decline ( due to depletion of resources) above carrying capacity

Throughout most of human history, human population size _____.

Answers

Final answer:

Historically, the global human population grew slowly until the Industrial Revolution sparked growth due to advances in sanitation and nutrition. The population boom slowed as developed countries underwent demographic transition, leading to family size decline and lower birth rates. Nonetheless, the global population stands at around 7.5 billion and continues to rise.

Explanation:

Throughout most of human history, the human population size grew very slowly, with fewer than 500 million people on Earth by 1650, a figure that's less than half of India's population in the year 2000. It was not until the Industrial Revolution in the late 1700s and 1800s, that we witnessed a significant increase in population due to improved nutrition and sanitation, which led to lower death rates and increased survival into adulthood.

By the mid-20th century, in developed countries, birth rates declined because children became more of an economic burden than an asset, and families were smaller due to urbanization, agricultural decline, and women pursuing education. This phenomenon is referred to as the demographic transition. Despite the rapid growth that occurred during the industrial period, some countries are now experiencing a population decline. The human population is currently at an all-time high of approximately 7.5 billion and continues to grow, albeit at varying rates across different regions of the world.

Which is the end result of cytokinesis?
one cell that has two identical copies of DNA
one cell that has two different copies of DNA
two cells that have two identical copies of DNA
two cells that have two different copies of DNA

Answers

Cytokinesis is the process of cell division in which the cytoplasm of the cell starts dividing, when the cell is in the last stage of the mitosis and meiosis. After the process of the cytokinesis is completed, the cell is divided into two daughter cells with each containing identical DNA (Deoxyribonucleic Acid). It begins in the anaphase, and finishes in the telophase.

Hence, the correct answer is 'two cells that have two identical copies of DNA'.

The end result of cytokinesis is two cells that have two identical copies of DNA. Cytokinesis is the final stage of cell division, following the separation of genetic material (DNA) during mitosis or meiosis.

The correct option is C.

During cytokinesis, the cytoplasm of the parent cell divides, forming two daughter cells. Each daughter cell receives an identical set of chromosomes, which means they have two copies of the same DNA. Therefore, the correct option is "two cells that have two identical copies of DNA." Cytokinesis is the final stage of cell division, which follows the separation of genetic material (DNA) during mitosis or meiosis. During mitosis, cytokinesis occurs after the replicated chromosomes have been divided and separated into two sets in the process of nuclear division.

In animal cells, cytokinesis typically involves the formation of a contractile ring composed of actin and myosin filaments. This contractile ring contracts, causing the plasma membrane to pinch inward at the equator of the cell. Eventually, the membrane fully constricts, resulting in the formation of a cleavage furrow that divides the parent cell into two daughter cells.

Hence , C is the correct option

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what occurs when external vibration match an objects natural frequency.

Answers

The object will break

Resonance occurs when external vibrations match an object's natural frequency, leading to maximal oscillation amplitude. Forced vibrations at this frequency can lead to greater energy transfer and potentially damage the object or structure.

When external vibrations match an object's natural frequency, a phenomenon known as resonance occurs. Resonance in a vibrating system leads to maximal amplitude of the system's oscillations proportionate to the driving force. For example, if a finger is moving up and down at the natural frequency of a paddle ball on an elastic band, the ball will resonate, leading to increasingly larger oscillations.

In a resonating system, the energy from the external force is transferred more efficiently, which can cause larger amplitude oscillations. This is significant as it can lead to dramatic effects, such as a glass shattering when a singer hits the right note, or a bridge collapsing under the influence of steady winds.

Forced Vibrations and Resonance

Forced vibration occurs when an object is made to oscillate by an external force. If this force happens to match the object's natural frequency, the phenomenon of resonance is observed. This can lead to increased amplitude of oscillations, which can sometimes cause physical damage to the structure or object, especially if the resonance continues for a significant period.

The ____________ ramus of a spinal nerve is the larger of the two branches, and innervates the anterior trunk as well as the upper and lower limbs.

Answers

The anterior ramus of a spinal nerve is the larger of the two branches and innervates the anterior trunk as well as the upper and lower limbs.
Anterior ramus is a branch of every spinal nerve as it occurs the vertebral canal, it supplies the lateral and ventral portions of the limbs, body wall, and perineum.
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A 1-liter bottle of orange juice used to cost $2.85 at a food market. Its price has increased; the new price is 110 percent of the original price. What is the new price of the juice? Round your answer to the nearest cent.$2.95$2.99$3.09$3.14 Economies of scale and first mover advantages are central to which theory of trade Why did Lemuel Haynes fight in the Revolutionary War? A 1250 kg car is moving down the highway with a velocity of 32.0 m/s when it bumps into the car ahead of it which has a mass of 875 kg and a velocity of 25.0 m/s. After the collision, the two cars stick together. What will be the resulting velocity of the two cars together? How much energy will be lost in this collision? Children who are sensitive to rhythm and sounds have a/an _______ learning style. A. musical B. intrapersonal C. kinesthetic D. interpersonal To what extent, if any, has the court promoted both the common good and individual liberty El profesor morales ensea (teaches) ____. qumica matemticas historia juan carlos toma qumica ____. los mircoles, jueves y viernes los lunes, mircoles y viernes los lunes, martes y jueves create a real world problem that represents 5/6 + 1/8. What excerpt from the monkeys paw would be considered the storys climax 5. Which of these courses would a Mexican high school student have the chance to take on a saturday? A. english b. math c. music d. history Find two fractions with the difference of 1/5 but with neither denominator equal to 5? I know the answer from Google but how is it solved? WILL GIVE A BRAINLESTThough they are constantly changing, ecosystems are naturally _____.consistentcrowdedspecies-richbalanced Cnt-books wants an affordable way to establish remote connections for its salespeople, who log on from customer sites all over the country, and its three branch offices. the company's main office is in phoenix, arizona, and its branch offices are in los angeles, california; chicago, illinois; and orlando, florida. explain what kind of connections the salespeople and branch offices should use and what kings of services should be installed on the main office's network to keep communication costs to a minimum. Which of the following is located in the temperate climate zone? A) grasslands . B) rain forest . C) taiga . D) tundra . Heather puts a straw into glass of water. She notices that when she looks through the glass and the water from the side, the straw appears to be broken. Which term best explains why the straw looks like it broken? A. Absortion B. Refraction C. Scattering D. Transmission Which of these battles is remembered for being both the largest battle ever fought in Georgia and for being one of the bloodiest battles of the Civil War?A. Battle of AtlantaB. Battle of Savannah C. Battle of chickamauga D. Battle of Fort Pulaski A rectangle is 3 units wide and 4 units long. How long is its diagonal For what value of x will 9, 16 and x have the same mean (average) as that of 26 and 12? When a Canadian moose was spotted in southern Florida, scientists begin to speculate about why the great brute had wandered so far from its native habitat. Which word is most helpful in identifying the source as a scientific textbook? MooseHabitatWanderedCanadian What component of the FITT Principle might include Isotonic exercise that strengthens the biceps? Time Type Intensity Frequency Steam Workshop Downloader