The protective substance that lines the stomach is called
1. Saliva
2. Mucous Membrane
3. Pepsin
4. Trypsin

Answers

Answer 1
Answer is 2. Mucous Membrane

Related Questions

The esophagus connects which two structures?
The intestine and the colon
The stomach and the intestine
The intestine and the mouth
The mouth and the stomach

Answers

Last option it is throat/mouth and stomach

Flowering plants reproduce from seeds.


Which role does an apple play in this process?

Answers

Answer: An Apple is a mature ovary, called a fruit

The function of a fruit is to protect developing

seeds!

Explanation:

Match the letter of the rock/mineral picture to the correct name. Each answer is
worth 1 point for a total of 20 points.

Magnetite

Calcite

Sulfur

Sandstone

Obsidian

Granite

Diamond

Conglomerate

Basalt

Mica

Fluorite

Feldspar

Gneiss

Ruby

Pyrite

Chert

Quarts

Limestone

Marble

Shale

Match the letter of the rock/mineral picture to the correct name. Each answer isworth 1 point for a total

Answers

Answer:

l don't know but l think

M is mable

Answer:

A Mica

B Conglomerate

C Shale

D Basalt

E Quartz

F Limestone

G Marble

H Diamond

I Chert

J Granite

K Gneiss

L Sandstone

M Fluorite

N Obsidian

O Sulfur

P Feldspar

Q Ruby

R Calcite

S Pyrite

T Magnetite

[BWS.02]
Scientific knowledge is both long lasting and always

A. Changing
B. Non observable
C. Permanent
D. Untestable

Answers

A changing science is always changing with new evidence
Answer is A changing

Ecologists use a method of studying a particular population of animal within a community called mark and recapture. A researcher captures, marks, and releases 40 red fox into a large community. He then collects 100 different red fox over the next year. If the recapture rate is 10%, what is a reasonable estimate of the red fox population size?

A) 40.

B) 400.

C) 4000.

Answers

The population size is B) 400. The recapture rate is the number of marked individuals recaptured divided by the total number of individuals captured. In this case, the recapture rate is 10%, so 10% of the population is marked.

The mark and recapture method is a technique used to estimate the size of a population. The method involves capturing a sample of individuals from the population, marking them in some way, and then releasing them back into the population. After a period of time, another sample of individuals is captured and the number of marked individuals in the second sample is counted. The size of the population is then estimated using the following equation:

Population size = (Number of marked individuals in the second sample) / (Recapture rate) * (Total number of individuals captured in the second sample)

In this problem, the researcher captures 40 red fox and marks them. He then captures 100 red fox and finds that 10 of them are marked. The recapture rate is therefore 10 / 100 = 0.1.

The population size is then estimated as follows:

```

Population size = (10) / (0.1) * (100) = 400

```

Therefore, the answer is B.

Here are some of the assumptions of the mark and recapture method:

* The marked individuals are randomly distributed throughout the population.

* The marked individuals do not have a higher or lower chance of being captured than unmarked individuals.

* The population size does not change between the time the first sample is captured and the time the second sample is captured.

The mark and recapture method is a relatively simple and inexpensive method to estimate population size. However, it is important to be aware of the assumptions of the method in order to make accurate estimates.



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what does photosynthesis form in a leaf first

Answers

Explanation:

The first stage of photosynthesis is the light dependent reactions. These reactions take place on the thylakoid membrane inside the chloroplast. During this stage light energy is converted to ATP (chemical energy) and NADPH (reducing power).

The light-dependent processes make up the initial phase of photosynthesis. On the thylakoid membrane inside the chloroplast, several processes take occur. In this phase, light energy is transformed to ATP and NADPH, two chemical energies (reducing power).

What is thylakoid membrane inside the chloroplast?

The light processes of photosynthesis are carried out by a system of connected internal membranes called thylakoid membranes in a chloroplast.

Numerous proteins and chlorophyll molecules can be found in each thylakoid membrane. Clusters of chlorophyll molecules are called photosystem.

Plants use chlorophyll pigments to absorb light energy and convert it to electrons, which are subsequently transmitted down a protein chain in the thylakoid membrane.

Therefore, thylakoid membrane inside the chloroplast in  which photosynthesis form in a leaf first.

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how do enzymes help against bacteria and disease​

Answers

Answer:

Unlike traditional antibiotics, which attack bacteria that have already infected some cell, the enzymes do battle with bugs on the surface of mucous membranes. When bacteriophages produce the compound inside bacteria, it punches holes in the organisms' cell walls, leading to their death.

Explanation:

what must change in the ecosystem for trees to appear

Answers

Of course, we already have trees in our ecosystem. If we were to gain more trees, then we need everybody to stop cutting them down for their gain. Nevertheless, we still need to use some trees to have mandatory everyday items. Trees partially need sunlight to grow and gain energy. With global warming gradually increasing, we may already have what we need to see trees continue to thrive. It is also helpful to plant trees ourselves; it is not a big difference, but it still helps.

There is also primary succession, this is the process of how trees grow. See more below.

Hope this basic outline helped, let me know if you need more info.

what must change in the ecosystem for trees to appear

Nurul refused to receive the free immunisations offered by the government for her son because she feels that his son is healthy and does not required immunisation. Do you agree with Nurul? Why?​

Help plis thanks

Nurul refused to receive the free immunisations offered by the government for her son because she feels

Answers

Answer: No , as diseases that occur from micro organisms can still negatively effect a person even if healthy , therefore immunization can help fight the microbes

Explanation:

How could students find out whether a short ramp or a long ramp would require less force to use? Measure the amount of force it takes to move ----

Answers

Answer:

Explanation:

By using an object up two ramps. The objects best have the same height, yet they must have different lengths.

if a trait is found in both lemurs and gorillas, that trait was probably also found in the common ancestor to all primates. T/F

Answers

if a trait is found in both lemurs and gorillas, that trait was probably also found in the common ancestor to all primates is true.

if a trait is found in both lemurs and gorillas, it was probably also found in the common ancestor to all primates. This is because shared traits among different species can indicate a common evolutionary history.The evolutionary history of life on Earth is the story of how living organisms have changed and diversified over time, starting from the origin of life around 3.8 billion years ago. The history of life on Earth is divided into several major eras, each marked by significant geological, environmental, and biological events.

The first era, the Precambrian, began with the formation of the Earth and lasted for almost 4 billion years. During this time, life emerged and evolved, with the first prokaryotic cells appearing around 3.5 billion years ago. Over time, these cells evolved into more complex forms, eventually giving rise to eukaryotic cells with specialized organelles.

The second era, the Paleozoic, began around 542 million years ago and lasted until about 251 million years ago. This era is known for the explosion of biodiversity known as the Cambrian explosion, during which many of the major groups of animals first appeared. The Paleozoic era also saw the evolution of plants and the colonization of land by vertebrates.

The third era, the Mesozoic, began about 251 million years ago and ended around 66 million years ago with the extinction of the dinosaurs. This era is sometimes called the Age of Reptiles, and it saw the evolution of many new groups of animals, including the dinosaurs, birds, and mammals.

The fourth and current era, the Cenozoic, began about 66 million years ago and is still ongoing. This era is sometimes called the Age of Mammals, and it has seen the diversification and radiation of many groups of mammals, including primates and humans.

The evolutionary history of life on Earth is a complex and ongoing process, shaped by a wide range of factors, including changes in the environment, geological events, and biological interactions. Understanding this history can help us to better understand the diversity of life on Earth and our place in the natural world.

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___________ postulated that genetic weaknesses, inadequate diet, infections, and other individual differences facilitate the effect of stress.

Answers

Hans Selye postulated that genetic weaknesses, inadequate diet, infections, and other individual differences facilitate the effect of stress.

Hans Selye was an endocrinologist and the pioneer of the general adaptation syndrome (GAS) theory, which describes how the body responds to stress.

According to Selye, stress is a non-specific response of the body to any demand or challenge placed upon it.

Selye's theory suggests that certain factors can increase an individual's vulnerability to the negative effects of stress. Genetic weaknesses refer to inherited traits or predispositions that may make someone more susceptible to stress-related illnesses or conditions.

Inadequate diet can weaken the body's resilience and impair its ability to cope with stress. Infections and other health issues can also contribute to the impact of stress by taxing the body's resources and compromising its overall well-being.

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A gardener crosses a plant with white flowers and a plant of the same species that has red flowers. The offspring of these plants have white flowers. Infer how the observations of the gardener are an example of the terms recessive and dominant. Include the term F1 generation in your discussion.

Answers

The observations of the gardener, where the offspring of a cross between a plant with white flowers and a plant with red flowers resulted in white flowers, demonstrate the concepts of recessive and dominant traits in genetics, with white being the recessive trait and red being the dominant trait.

The gardener's observations exemplify the concepts of recessive and dominant traits in genetics. When the gardener crossed a plant with white flowers and a plant with red flowers, they were likely working with a specific plant species that exhibits Mendelian inheritance patterns.

In genetics, each organism has two copies of a gene, referred to as alleles, which determine specific traits. In this case, let's assume that the gene responsible for flower color in the plant species has two versions: one for red flowers (dominant allele) and another for white flowers (recessive allele).

When the gardener crossed the plant with white flowers (recessive allele) and the plant with red flowers (dominant allele), the resulting offspring belong to the F1 generation. In the F1 generation, the dominant trait (red flower color) masks the expression of the recessive trait (white flower color). This means that the dominant allele for red flowers overrides the presence of the recessive allele for white flowers, leading to the observed phenotype of red flowers in the parent plant and the F1 offspring.

The recessive allele for white flowers remains present in the F1 generation, but it is not visible due to the dominance of the red flower allele. However, if the F1 offspring were to self-pollinate or cross with other F1 individuals, the recessive allele could be expressed in future generations, resulting in a phenotypic ratio of 3:1 for red to white flowers in the F2 generation.

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What is reproductive isolation?Why is it necessary for speciation to occur? Explain one way reproductive isolation might occur.

Answers

Reproductive IsolationWhat is reproductive isolation?

Reproductive isolation is a process in which individuals in a population are prevented from reproducing. This isolation can occur in several ways, such as a physical barrier that separated these species into two groups that will reproduce with each other and generate a new species.

Why is it necessary for speciation to occur?

Speciation is an essential evolutionary process for the creation of new species. It is worth remembering that from reproductive isolation, the individuals of a population have been differentiating and evolving and in the end, there will be a different species from the initial one. Therefore, speciation is necessary for the emergence of new species.

Explain one way reproductive isolation might occur.

Reproductive isolation may occur due to a geographic barrier. In this case, a population is separated by a geographic barrier such as a river, a canyon, or a mountain, thus generating subpopulations that will begin to evolve and adapt in different ways. In the end, we will have different subpopulations, but in the beginning, they were part of the same population.

Justin notices a particular type of caterpillar feeds only on cottonwood trees in his neighborhood.In which way has Justin increased his scientific knowledge?

Answers

The answer is He  made observations about nature world.

Explanation:

And it was observed that the specific caterpillar fed only on the aspen. Therefore, the conclusion was drawn based on observations alone and no experiments were conducted on Justin's part.

The  set of methods given describes the observational experiment when Justin notices and acquires the established pattern of the specific caterpillar. The goal was to notice the specific caterpillar to see what it feeds on and whether or not it feeds on another. Therefore, it indicates the nature of the world.

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What would happen if a quaternary consumer were added to this ecosystem?

Answers

Answer:This lesson introduces and explains the ecological concept of a quaternary consumer. It discusses which organisms act as quaternary consumers and. ... If so, you've filled the role of primary consumer by eating lettuce (a producer). ... In which case it should be easy to understand that quaternary consumers are next in line

Explanation:

3. What is one thing that can be done to help improve areas that produce a lot of runoff?

Answers

Answer: hi, im here to help :3

so, you can either use plants, use pesticides and fertilizers less often or the one thing i know is consider a rain barrel.

The matrix of bone tissue is made up of *

adipose tissue
hard minerals (like calcium)
collagen fibers
hard minerals (like calcium) and collagen
fibers

Answers

Answer:

Hard minerals (like calcium) and collagen fibres

the single most important factor influencing potassium ion secretion is . the single most important factor influencing potassium ion secretion is . potassium ion concentration in extracellular fluid

Answers

The single most important factor influencing potassium ion secretion is potassium ion concentration in blood plasma.

Define renal secretion.

The renal tubule, where nutrients and water are reabsorbed into capillaries, receives the filtrate that the glomerulus absorbed. The renal tubule receives both waste and hydrogen ions at the same time from the capillaries. Secretion is the name for this procedure.

Processes for proper distribution of potassium between intracellular and extracellular fluid compartments as well as mechanisms for kidney excretion are all part of the regulation of potassium metabolism. The collecting duct and late distal collecting tubule (DCT) are the main sites where potassium is secreted. Long-term serum potassium level regulation is the aim of secretion.

The rate of secretion varies and can be accelerated or slowed down by a number of factors .The substantial secretion with a normal or high K+ diet ranges between 15-20%. However, very little secretion occurs with a low K+ diet or depletion.

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in the 1940's schultes was looking for curare plants with native groups so he could help people injured in wwii undergo surgery with a more powerful muscle relaxer.

Answers

In the 1940's schultes was looking for curare plants with native groups so he could help people injured in WWII undergo surgery with a more powerful muscle relaxer is a true statement.

What is Curare?

This is referred to as a type of plant which is an alkaloid and is known for its very high toxic content and is used in different parts of the world for different purposes.

It is used by individuals as a paralyzer of the motor nerves thereby making it to be used in anesthesia when different types of surgeries are being done by the individual.

This is therefore why it was also used for people who were injured in WWII who was going to undergo surgery so as to relax the muscles and ensure that there are no complications and it going on smoothly hence true is correct.

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The full question is:

in the 1940's schultes was looking for curare plants with native groups so he could help people injured in wwii undergo surgery with a more powerful muscle relaxer. true/ false

PLSSS HELP IF YOU TURLY KNOW THISS

PLSSS HELP IF YOU TURLY KNOW THISS

Answers

Answer:

B. oxygen

Explanation:

what is betacyanin? why might some plant cells accumulate this compound?

Answers

Betacyanin is a type of plant pigment that gives fruits and vegetables their red, purple, or blue color. Some plant cells accumulate it as a protection against predators and to absorb light for photosynthesis.

Betacyanin is a type of pigment found in certain plants, specifically those in the family Amaranthaceae and Caryophyllaceae. This pigment is responsible for the red or purple color of certain fruits, vegetables, and flowers, such as beets, pric.kly pear cacti, and amaranth flowers.

Plant cells may accumulate betacyanin for a few different reasons. One reason is for protection from UV radiation. Another reason is for attracting pollinators. Finally, betacyanin may also play a role in protecting the plant from herbivores, as the pigment can make the plant taste bitter or unappealing.

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Within the structure of a cell membrane, the phospholipid heads face _____, while the tails face _____.

Answers

Within the structure of a cell membrane, the phospholipid heads face the aqueous environment, while the tails face inward, forming the interior of the membrane.

The cell membrane, also known as the plasma membrane, is composed of a phospholipid bilayer. Phospholipids are amphipathic molecules, meaning they have both hydrophilic (water-loving) and hydrophobic (water-fearing) regions. The hydrophilic heads of phospholipids consist of a phosphate group and a glycerol molecule, which are polar and attracted to water. The hydrophobic tails, on the other hand, are composed of fatty acid chains that are nonpolar and repel water.

In an aqueous environment, such as the extracellular and intracellular fluids surrounding the cell, the hydrophilic heads of phospholipids arrange themselves on the outer and inner surfaces of the membrane, facing the watery environment. The hydrophobic tails cluster together in the center of the membrane, creating a hydrophobic barrier that prevents the free movement of polar molecules and ions.

This arrangement of the phospholipid bilayer is often referred to as the fluid mosaic model, as it allows the membrane to exhibit fluidity and flexibility. The phospholipids can move laterally within their own monolayer, resulting in a dynamic and adaptable membrane structure.

The orientation of the phospholipid heads and tails is crucial for the cell membrane's function as a selectively permeable barrier. It allows the membrane to control the passage of substances in and out of the cell, as polar molecules and ions cannot easily cross the hydrophobic core of the membrane, while nonpolar molecules can diffuse through it.

In summary, the phospholipid heads of the cell membrane face the aqueous environment, while the tails face inward, forming the hydrophobic interior of the membrane. This arrangement is vital for maintaining the integrity and function of the cell membrane.

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The theater sold 562 tickets to the concert at a price of $6 each. Use the distributive property to find the product of 6 × 562. 6(562) = 6(500) + (60)(2) = 3,120

Answers

Answer:

1,897,087=1,900,207.2=3,120 (the equasion you gave when distributed)

Answer to the question(Money made): ($)3,372

Explanation:

solved it out by multiplying

Answer:

Answer to the question(Money made): ($)3,372

Explanation:

(T/F) for bodies left on the surface of the ground, bone rot begins to occur after around twelve years.

Answers

Answer: F

Explanation:

It occurs way sooner, at least 60 minutes after a person or animal dies.

transplant immunity causes which of the following reactions? transplant immunity causes which of the following reactions? elongation rejection rejuvenation avoidance acceptance

Answers

Transplant immunity causes rejection. When a transplant is performed, the immune system of the recipient recognizes the transplanted tissue as foreign and attempts to destroy it.

This response is called rejection, and it is an immune response against the transplanted tissue. There are two types of rejection: hyperacute rejection, which occurs almost immediately after transplantation and is due to pre-existing antibodies against the donor tissue, and acute rejection, which occurs within the first few months after transplantation and is a cell-mediated immune response against the donor tissue. Chronic rejection is a slow, progressive form of rejection that can occur over months or years after transplantation.

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what of the following are functions of lipids? choose three correct answers

Answers

You didn't give any of the options so i'm gonna assume

forming waxy leaf coverings

storing energy in fat cells

forming cell membranes

write a 1 paragraph explanation on how the Big Bang is the start of the universe.

Answers

Answer:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with an infinitely hot, infinitely dense singularity, then inflated — first at unimaginable speed, and then at a more measurable rate — over the next 13.8 billion years to the cosmos that we know today.

Because current instruments don't allow astronomers to literally peer back at the universe's birth, much of what we understand about the Big Bang Theory comes from mathematical formulas and models. Astronomers can, however, see the "echo" of the expansion through a phenomenon known as the cosmic microwave background.

While the majority of the astronomical community accepts the theory, there are some theorists who have alternative explanations besides the Big Bang — such as eternal inflation or an oscillating universe..

Explanation:

Well, hope it helps you..

But, Your Welcome in advance..

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A condition marked by the excessive secretion of insulin is known as _________________________.

Answers

A condition marked by the excessive secretion of insulin is known as hyperinsulinism.

What is insulin?

Insulin is an essential hormone secreted in the pancreas by the islets of Langerhans and whose main function is that it regulates the amount of glucose in the blood.

The release of insulin into the blood is always in response to the presence of large amounts of glucose in blood. The release of insulin into the blood results in the metabolism of glucose to produce energy.

However, in some abnormal conditions, there is excessive secretion of insulin by the pancreas resulting excessive breakdown of glucose, and thus hypoglycemia. This condition is known as hyperinsulinism.

In conclusion, the insulin is an essential hormone which plays an important role in glucose metabolism.

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the _________ nerve carries parasympathetic fibers to the sa node. a. vagus b. hypoglossal c. facial d. accessory

Answers

The vagus nerve carries parasympathetic fibers to the SA node. The correct answer is option a.

The vagus nerve, also known as the tenth cranial nerve or cranial nerve X, carries parasympathetic fibers to various organs in the body, including the heart. It plays a significant role in regulating the autonomic functions of the body.

The sinoatrial (SA) node, located in the upper part of the right atrium of the heart, is responsible for initiating the electrical signals that regulate the heart's rhythm. The parasympathetic fibers of the vagus nerve innervate the SA node and exert control over its activity.

When parasympathetic stimulation is activated through the vagus nerve, it causes the release of the neurotransmitter acetylcholine. Acetylcholine binds to specific receptors in the SA node, leading to a decrease in the firing rate of the node and subsequently reducing the heart rate. This process is known as vagal or parasympathetic bradycardia.

So, the correct answer is option a. vagus.

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If I asked you to stand on a parapet, where would you go?a.a low wall along the edge of a roof or balconyc.stand on a group of puppetsb.a manteld.a plank Find an equation for the line parellel to 4y + 12x = 28 and goes through the point (-6, -8) . Write your answer in the form y = mx + b. Y = what is a symbol in the book the outsiders and what dose it mean Lola has 4 1 2 cups of rice. she uses 3 4 of the rice to make sushi rolls for dinner. she uses the rest of the rice to make rice pudding for dessert. how much rice does lola use for the rice pudding? The map shows human development levels worldwide Which region is least developed?eastern Europenorthern Asiacentral Africasouthern Africa What are the 4 properties of the atom? The purpose of the legislative branch is to1) enforce all federal laws2) ensure the safety of all Americans and command the U.S. army3) make federal laws and represent the people of America and their wants and needs4) interpret whether a law is constitutional or unconstitutional Read these lines from "The Song of Wandering Aengus." And pluck till time and times are done, The silver apples of the moon, The golden apples of the sun. How does Aengus's desire to pluck the apples affect the meaning in the poem? A.It represents Aengus's desire to capture the beauty he saw when he was young. B. It suggests the youthful passion Aengus feels about his renewed life. C. It reflects Aengus's disappointment in wandering for so many years. D. It reflects the frustration Aengus feels about being idle. QUICK HELP PLSSSS Find the probabilities of the events described and arrange them in order from the event with the lowest probability of occurrence to the event with the highest probability of occurrence. "Mother to Son" and "DEAR MAMA"Paired ReadingLa3. Rread each of the texts. Look closely at the vernacular. Discuss not only how thevernacular is similar or different, but also the impression it makes on the speaker. What doesthe vernacular say about each of the speakers. Cite evidence from the texts to support your response Read Romans 12-14 and 15:1-13. In no less than two paragraphs, describe what these chapters say about how Christians ought to live and explain how you are living a life of obedience to God in accordance with these passages. Industries that exists in the Rocky Mountains that relate to their natural resource. plzzzzzzz huuuuurrrrrrrrrryyyyyyyyy you roll a 6 sided die what is p(greater than 4) we let u = and dv = so du = and v = x^9ln(-7x)dxevaluate ln 3 (x) dx 1. Suppose you map a seismically active fault that strikes 030 and dips 60 SE. Slicken lines on the exposed fault surface indicate that the motion on the fault is pure dip slip, but you are unable to determine from field evidence whether it is a normal fault or a reverse fault. An earthquake on the fault is recorded at seismic station "A." The first motion is compressional, the azimuth from the epicenter to the station is 175 , and the angle of incidence is 35 . Determine whether the motion on the fault is normal or reverse.2. Iist the criteria for faulting? Discuss the various geological features used as shear sense indicators in order of reliability in areas where piercing points are absent to determine slip vector. Write a single instruction that will move the value in register 12 to register 14. (The answer should be lowercase.) will mark brainliest please yall There are 75 students. 20% of the students are in a club. How many students are in a club? this is the primary social mechanism for answering the basic questions about what is produced how it is produced and for whom it is produced The square below represents one whole. What percentage is represented by the shaded area?