The esophagus, a tube that carries food to the stomach, is constantly being scraped as food travels through it. Why does the esophagus not deteriorate through a person’s lifetime? Cells can anabolize the food prior to entering the esophagus. Cells are constantly dividing and replacing old or damaged cells. Cells promote a fluid to build up along the esophagus to reduce friction. Cells build a type of protein called enzymes that act as an armor.

Answers

Answer 1

Cells are constantly dividing and replacing old or damaged cells.

Answer 2
The esophagus does not deteriorate throughout a persons life due to cellular reproduction. When the cells are scraped off by the food, mitosis, or cellular division occurs resulting in two daughter cells from one which will eventually replace the missing cells.

Related Questions

Which of the following statements describes ways cellulose and starch are similar to and different from each other?

Answers

Starch and cellulose

Live Fund are selling their holdings at $5,000 per
share. How much would Live Fund receive if they sold
half their holdings in Marks Brothers?
$2.48 million
$4.68 million
$6.8 million
O $42.6 million
$46.8 million

Answers

Answer:

$46,8 million like it. please

$46.8 million your welcome I need to make it 20 letters long.

which of the following segments of the growth curve would starvation proteins be at their highest detectable levels?​

Answers

No drawing ? If you can send it i might can solve it!
Attach a picture and I will help you!

Having a hard time with this question.

Answers

Its the first one, the second one and the fourth one! I hope this helps
1, 2, and 3 answer

By the mice migrating to an area where their physical features change it is an example of adaptation. The future offsprings of the mice will carry that new trait and their off spring will carry it. The mice went through natural selection which will be different survival methods and different characteristics.

A wet-mount slide of red onion cells is studied using a compound light microscope.

Answers

I think it is called the anemone
Its called the anemone


8. All the abiotic and biotic factors that interact with each other is called
a. A habitat
b. An ecosystem
C.A Niche
d. Commensalism​

Answers

Answer:a niche

Explanation:

I’m pretty sure that it’s an ecosystem

Describe wavelength, amplitude, and frequency in relationship to vision and hearing

Answers

Explanation:

Visual and auditory stimuli both occur in the form of waves. Although the two stimuli are very different in terms of composition, wave forms share similar characteristics that are especially important to our visual and auditory perceptions. Waveforms of different types surround us at all times, however we only have receptors which are sensitive to specific types of wavelengths. In this section, we describe the physical properties of the waves as well as the perceptual experiences associated with them.

AMPLITUDE AND WAVELENGTH

Two physical characteristics of a wave are amplitude and wavelength (figure below). The amplitude of a wave is the height of a wave as measured from the highest point on the wave (peak or crest) to the lowest point on the wave (trough). Wavelength refers to the length of a wave from one peak to the next.

 

The amplitude or height of a wave is measured from the peak to the trough. The wavelength is measured from peak to peak.

 

   Wavelength is directly related to the frequency of a given wave form. Frequency refers to the number of waves that pass a given point in a given time period and is often expressed in terms of hertz (Hz), or cycles per second. Longer wavelengths will have lower frequencies, and shorter wavelengths will have higher frequencies 

Wavelength and frequency are inversely related so that longer waves have lower frequencies, and shorter waves have higher frequencies. In the visual system, a light wave's wavelength is generally associated with color, and its amplitude is associated with brightness.

three students are discussing scientific inferences erica says that inferences can change with a single experiment selvin says science is fixed and rigid miguel says the inference can change over time based on new data and findings which student has the most accurate explanation​

Answers

Inferences are predictions.
Erica is wrong because a single experiment is not enough to prove something.
Selvin is wrong because science is not fixed.
Miguel is correct because predictions can on be proven after multiple experiments.
the answer is Inferences are predictions.
Erica is wrong because a single experiment is not enough to prove something.
Selvin is wrong because science is not fixed.
Miguel is correct because predictions can on be proven after multiple experiments.

Which directional terms best describe the location of the sternum in relation to the vertebral column? in the axial region of the body, inferior to the vertebral column in the appendicular region of the body, anterior to the vertebral column in the appendicular region of the body, superior to the vertebral column in the axial region of the body, anterior to the vertebral column

Answers

Answer:

Anterior

Explanation:

In anatomical terminology there are several words to indicate the position or part of the body that is being mentioned in a more specific and precise way, a group of these terms are called directional terms, they focus on the position of a specific part, one of the words in this group is "anterior" it basically means "in front of". The sternum is in front of the vertebral column.

The sternum, also known as the breastbone, is located in the middle of the thoracic (chest) region of the axial body. The correct answer is: In the axial region of the body, anterior to the vertebral column.

The axial region refers to the central part of the body, which includes the head, neck, and trunk. In this case, we are specifically referring to the trunk region where the sternum is located. Anterior means towards the front or the ventral side of the body. In anatomical terms, the front side of the body is considered the anterior side.

Sternum is positioned anteriorly, meaning it is in front of or facing the front of the body. In relation to the vertebral column, which is part of the axial skeleton and runs along the posterior (back) side of the body, the sternum is anterior.

Therefore, the correct answer is: In the axial region of the body, anterior to the vertebral column.

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VERY VERY EASY QUESTION. WILL MARK BRAINLIEST

A marine biologist explains that salmon populations change over time because of differential reproduction. What is "differential reproduction"?

Some organisms in a population lay eggs, while others produce sperm.

Some organisms in a population produce more male offspring than others.

Some organisms in a population produce more offspring than others.

Some organisms in a population reproduce in rivers, while others stay in the ocean.

Answers

Differential reproduction means that some organisms in a population produce more offspring than others.

Differential reproduction refers to the difference between individuals in a population and how many offspring they are able to leave.The best adapted organisms to a given environment will leave more offspring than those who are not well adapted. Differential reproduction depends on the natural

Answer:

D

Explanation:

How would Earth most likely change if the amount of greenhouse gasses continued to increase?
A Glacier size would increase.
B Air pollution would decrease.
C Global temperatures would increase.
D) Ocean levels would decrease.

Answers

Answer:

C. Global temperatures would increase

Explanation:

greenhouse gases affect temperature, so, it would be C.

Have a great day

answer : c
explanation cause i know it’s c

Easy Question. Will mark brainliest.

Considering the impacts and benefits of bioprospecting, which of the following describes the most likely impact?

It could be harmful to the ecosystem.

It may make additional types of medical treatments available.

It is more expensive than creating synthetic compounds.

It provides additional variety of known chemical compounds.

Answers

Answer:

It could be harmful to the ecosystem.

Explanation:

like genetic modification,it might spoil the balance of ecosystem or create a harmful substance that we can't deal with.that's my insight.

The answer is it could be harmful to the ecosystem

*PLEASE ANSWER TY* Which gas makes up the majority of air pollutants? a.) sulfuric acid b.) sodium hydroxide c.) carbon monoxide

Answers

Answer:

carbon monoxide

Explanation:

sulfuric acid is litterally acid

sodium hydroxide..... common now

Carbon monoxide (c.) is the gas that makes up the majority of air pollutants.

What is carbon mono oxide?

Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is produced by the incomplete combustion of carbon-containing fuels, such as gasoline, natural gas, coal, and wood. It is a highly toxic gas and can be harmful to both humans and animals.

When inhaled, carbon monoxide enters the bloodstream and binds to hemoglobin, the molecule responsible for carrying oxygen to body tissues. This binding affinity is much stronger than that of oxygen, resulting in reduced oxygen delivery to organs and tissues. As a result, exposure to high levels of carbon monoxide can lead to symptoms such as headache, dizziness, nausea, confusion, and in severe cases, loss of consciousness and death.

Carbon monoxide is a significant air pollutant, often found in areas with heavy traffic, industrial emissions, and improper ventilation. It is important to have proper ventilation systems and to use carbon monoxide detectors to minimize the risk of exposure to this dangerous gas.

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6. A relationship between 2 species, 1 species benefits and the host is harmed.
a. symbiosis
b. mutualism
commensalism
d parasitism

Answers

Answer:

symbiosis

Explanation:

Symbiosis is a close relationship between two species in which at least one species benefits.Parasitism is an example of symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.

Answer:

your answer is d) paratism

Explanation:

All of the following are effector responses that increase body temperature

Answers

Answer:A : vasodilation of dermal blood vessels

Explanation:

The correct awnser is A

There are chemical reactions that take place within a cell?

Answers

Answer: yes there are

Explanation:

Cytoplasm – Where chemical reactions occur. Inside the cytoplasm are enzymes which speed up these reactions

Hope this helps!

Which of the following is true of red blood cells? A. They live for only 120 days. B. They have multiple Nuclei. C. They live for only about 20 days. D. Once created in bone marrow, they circulate for our lifetime.

Answers

correct answer is (D. Once created in bone marrow, they circulate for our lifetime)

A. They live for only 120 days is correct. They are created in the bone marrow and destroyed in the spleen "red blood cells graveyard"

B. They have multiple Nuclei. Red blood cells don't have a nucleus but some can present structures called Jolly's bodies that are small pieces of the nucleus that they lost in the differentiation process

C. They only live for only about 20 days. No, red blood cells live for about 120 days

D. Once created in bone marrow, they circulate for our lifetime. Again, they have a limited lifetime

In order for a dead organisms remains to become fossilized certain conditions must be met. summarize three of these conditions.

Answers

The organism generally must have hard parts such as shell, bone, teeth, or wood tissue; the remains must escape destruction after death; and the remains must be buried rapidly to stop decomposition. This does make the fossil record biased because animals with soft bodies are less likely to form fossils. It also means that particular environments will not help fossils form because the remains must be buried rapidly and escape the detection of scavengers.
4. Describe three different methods of fossilization.
Organisms can be buried and preserved in substances such as frozen soil, volcanic ash, sediment, ice, oil, and amber. This process preserves even the soft parts. Hard parts such as shells, teeth, bones, and wood can also be more easily preserved because they resist weathering. Hard parts can also become altered due to carbonization (leaves only a thin film of carbonaceous material), petrifaction (gets replaced by minerals in water turning it to stone), and replacement (hard parts dissolve and get replaced by calcite, silica, dolomite, and iron compounds)

The vast majority of deceased organisms vanish without a trace, so fossilization is a rare process.

What are the conditions that favor fossilization:

Hardbody parts (bones, teeth, shells) will fossilize; soft body parts will not but may leave traces (e.g. imprints)

Remains preserved (protection against scavenging, erosion, and environmental damage)

There is a lot of pressure to get the remains mineralized (i.e. turn hard body parts into fossilized rocks)

Anoxic (low oxygen) conditions are used to protect against oxygen damage and to prevent saprotroph decomposition.

Thus, we can conclude that hardbody parts remain preserved, and high pressure and anoxic conditions are required during fossilized.

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Project: Analyzing Genetic Variation WRITE YOUR FOUR PARAGRAPH RESEARCH PAPER in the space provided below. Restate your claim. Describe the first evidence that supports your claim—in a paragraph and using your own words. Describe the second evidence that supports your claim—in a paragraph and using your own words. Provide a summary paragraph that restates your claim, and explains how your research defends your claim (a conclusion).

Answers

Answer:

1st

Explanation:

Answers first you’re welcome

are mutations good or bad

Answers

Answer: Mutations can be good or bad.  

Explanation:

Both. Mutations can be good because it can help the species evolve to make survival easier. But they can also be bad because they can cause the opposite to happen.

Why are saprotrophs so important to a marine food web?

Answers

Answer:

They break down dead organisms and recycle nutrients. They directly help to maintain the population sizes of different predators. They primarily eliminate toxins from the water that can harm phytoplankton.

Explanation:

Hope it helps I found it on brainly

Answer:

They break down dead organisms and recycle nutrients.  

Explanation:

Saprophytes are the living organisms that feed upon dead organisms such as plants, animals, and their decaying products. They contribute to the food web because they help in clearing up the biological waste from the environment and make the resources after degradation available to the plants as soil nutrients. Therefore, helps in nutrient recycling in an ecosystem.

Easy Question. Will mark brainliest.

Which of the following strategies are used in biotechnology to solve a problem?

I. Genetic engineering

II. Biomimicry

III. Biochemical engineering



I only

II only

I and II only

I, II, and III

Answers

Answer:1 only

Explanation:genetically modified organisms are used

The correct answer is I and II only

Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. How does the design of your experiment control for outside factors that may affect the results?

Answers

Answer:

yes the fertile soil will grow faster and taller

Explanation:

the fertile soil will grow faster because  it has what the plant needs

The fertilizer will make it grow faster and always taller so yes indeed:)

Hyponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary contractions of muscles, are among the symptoms of hyponatremia. Why do they occur?
A.
Sodium is needed to generate an action potential.
B.
Sodium makes up most of the myelin sheath.
C.
Sodium is the signaling molecule that transmits impulses across a synapse.
D.
Sodium controls voluntary movement, and potassium controls involuntary movement.
Reset Next

Answers

Answer:

Option A. Sodium is needed to generate an action potential.

Explanation:

Action potentials are generated by the special types of the voltage-gated channels which are embedded in the plasma membrane of the cell.

These channels are shut when the membrane potential is near zero and the voltage-gated channels open only when the membrane potential is more than the threshold voltage.

When the channels are open then they allow the flow of sodium ions which ultimately changes the electrochemical gradient which rises the membrane potential. This rise in membrane potential generates the action potential.

The correct answer would be A

What does a restriction enzyme create that allows a gene to bond to a plasmid?

Answers

Restriction enzymes are DNA-cutting enzymes. ... DNA ligase is a DNA-joining enzyme. If two pieces of DNA have matching ends, ligase can link them to form a single, unbroken molecule of DNA. In DNA cloning, restriction enzymes and DNA ligase are used to insert genes and other pieces of DNA into plasmids.

Which angles are right?

Answers

Answer:

KLJ & EFH

Explanation:

Right angles have a 90° angle

Answer:

A, B, C

Explanation:

A right angle is an angle that is 90 degrees.

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What type of molecule is represented by the model below?
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IIIIIIII
с-с-с-с-с-с-с-с-с-с-Н
Н-С-0
| | | | | ІІ | |
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н нннннннн
-с-с-с-с-с-с-с-с-с-Н
нсо
1 т т т т т т т 1
н ннннн Hнн
н ннннн
о
-с-с-с
Os
Hнн
н-с-О
| | | | |
н нннн
11

н
O Carbohydrate
Steroid
O Fat
Nucleic acid

Answers

Answer:

Carboydrate

Explanation:

I'm confused with what's going on in the words, but I see a lot of C, H, O, and more. So I'm guessing it's talking about carbohydrates. Don't get mad though it's just the words didn't make sense to me.

A

Part D

Explain why your model improves upon the student's original model. How would your model help someone who was

learning about photosynthesis for the first time?

B

I U

x

X

Font Sizes

A- A.

Answers

Answer:

See below

Explanation:

This new model perhaps better explains the elements required in order for photosynthesis to take place. Sunlight, water, carbon dioxide are essential for the plant so it can produce it own food. Someone who is not previously familiar with the process of photosynthesis needs to start from these basics and then further build on this knowledge.

Answer:

This model shows all the major molecules involved in the Calvin cycle and how they change at each stage of the process. This added detail would clarify that the Calvin cycle is a series of complex steps. The student’s original model didn’t show this breakdown at all, and it shows only the final products. This model also shows the number of each molecule created, which the original model doesn’t do.

Explanation:

PLATO Edmentum

Explain why the root vore is used in the appropriate vocabulary terms

Answers

Answer:

I'm not sure what a root vote is sorry

Explanation:

Hmmm....from what I know the root vore is used in the word devour!

How are the alleles for sex-linked traits inherited

Answers

i think the answers c
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The mid term exam had a normal distribution with mean 70 and standard deviation 10. To get a C you have to be in the middle 40% of the class. Which two grades will define the middle 40%. A planet in another solar system orbits a star with a mass of 5.0 x 1030 kg. At one point in its orbit, it is 150 x 106 km from the star and is moving at 55 km/s. What is the semimajor axis of the planet's orbit I) Construct a triangle PQR such that |PQ|=8cm,{RPQ=90{PQR=30.Measure |RQ| A sequence of DNA ( 3' CCTCCGATGA 5' ) is used as a TEMPLATE strand for dideoxy sequencing. The products are made and the products are run in 4 different lanes (labelled "A", "G", "C", and "T") of an electrophoretic gel. Which lane will contain the product that ran furthest down the gel plz plz, answer it hurry. Calculate the perimeter of this trapezoid Check all that apply. If tan theta = 15/8 then: The following table shows the results of a vote for Lola's dance team's color. Color Number of votes Blue 9 Green 4 Red 8 Yellow 3 Pink 5 Find the mean number of votes. When two or more medicines are taken at the same time, they can work together in one of three ways: additive, synergistic, or antagonistic interaction. What is synergistic interaction? A. when two medicines work together in a positive way without causing any harm B. when the effect of one medicine is reduced or cancelled by another one C. when one medicine boosts the effect of the other one in two grammatically correct sentences explain intonation Read the following paragraph:There are many kinds of people in the world, all valuable intheir own ways. We feel it is a privilege to spread our wayof life, which is an example to all others. We find oursubjects respect our culture and what we have to teachthem. The gift of being able to share our society's giftswith them is our burden, and our joy.Which attitude is most strongly implied by the paragraph?A. FeministO B. ImperialistC. Sympathetic D. SocialistPREVIOUS The length of a side of a square is \sqrt(x^(2)-4) If the area of the square is 12, find x. A. 16 B. 4 C. 12 D. \sqrt(148) Help urgently please The combatant command responsible for conducting civil support operations (including consequence management operations) in accordance with US laws within the established area of operations is Please HelpShow Work This substituent deactivates the benzene ring towards electrophilic substitution but directs the incoming group chiefly to the ortho and para positions. A) -F B) -OCH2CH3 C) -CF3 D) -NHCOCH3 E) -NO2 HELP! Please answer i) HELP ASAP!!! Alex bought a notebook containing 96 pages, and numbered them from 1 through 192. Bob tore out 25 pages of Alexs notebook, and added the 50 numbers he found on the pages. Could Bob have gotten 2012 as the sum? Show your logic steps on how you draw your conclusion. PLEASE HELP ME!!! I will give the BRAINLIEST for whoever answers it CORRECTLY! HELP ASAP!!!Advise a man who had unprotected sex to be tested with a lowed by a confirmatory Westernblot test. secondaryTrueFalse