3. The pH of stomach acid is 2, why is this both good, but possibly destructive to our bodies?​

Answers

Answer 1
Stomach acid is a highly acidic liquid your body naturally produces to help you digest and absorb nutrients in food. Your body also produces enzymes and mucus to help protect itself against the acid's strength. High levels of stomach acid can lead to heartburn, acid reflux, and ulcers.

Related Questions

what is the chance that among the three children in generation ii who have the dominant phenotype, one of them is aaaa and two of them are aaaa ? (hint: consider all possible orders of genotypes.) express your answer to two decimal places.

Answers

This question's correct answer is 0.44.

A dominant phenotype is one that manifests itself in one of two ways: the inheritance of two dominant alleles (homozygous dominant) or the inheritance of one dominant and one recessive allele (heterozygous dominant).

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Be able to explain how water moves in the water cycle.

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It begins with liquid water flowing across the land (known as runoff), and into the ground where it’s absorbed by plants. The water evaporates from the plants, or from runoff, and into the atmosphere (known as transpiration). The evaporated water comes together to form clouds, that’s eventually becomes to heavy to hold and it starts to rain (precipitation). If the atmosphere is cold enough, solid snow and ice and form directly from the gas ( known as sublimation). The perceptions of rain, snow, or hail falls back to the earth where it melts (for snow and hail) and becomes rain water again.


2. At which position might the Moon block part of the Sun, making a solar eclipse visible
from Earth?
(1) 7
(2) 2
(3) 9
(4) 4

Answers

Answer:

(1) 7 a

Explanation:

Identify the bacteria that are responsible for turning nitrogen from the atmosphere into usable nitrogen for plants. Streptomyces, Yersinia pestis, Lactobacillus acidophilus, or Rhizobium.

Answers

The bacteria that are responsible for turning nitrogen from the atmosphere into usable nitrogen for plants are commonly called as Rhizobium.

What are Rhizobium bacteria?

Rhizobium bacteria are a particular taxonomic group of bacteria that are well known because they are able to fix important amounts of nitrogen present in leguminous plants. These bacteria can generate nodules capable of fixing nitrogen in the air which is then employed by the plant to synthesize biomolecules.

Therefore, we can conclude that Rhizobium represents bacteria that can use the nitrogen in the air to fix it into leguminous plants.

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cardiorespiratory fitness is important because it multiple choice question. stretches the small muscles of the body. rests the heart and lungs while exercises are performed. allows the blood to carry oxygen and nutrients to the body. blocks the body's glands from producing hormones.

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cardiorespiratory fitness is important because allows the blood to carry oxygen and nutrients to the body.

The intensity of your workout and oxygen use are measured using metabolic equivalents (METs). They gauge energy use when at rest.

Maximum oxygen uptake (VO2 max) and how it is utilised during vigorous exercise are the two factors used to gauge cardiorespiratory endurance. Increased oxygen uptake indicates that your cardiorespiratory system is operating effectively and that you are using more oxygen. VO2 tests are often performed in a lab, hospital, or clinic with the assistance of a clinician or exercise physiologist. With a certified fitness teacher, you can perform submaximal testing.

Your cardiorespiratory endurance is assessed using submaximal exercise tests. Your cardiorespiratory endurance may be enhanced with the help of these exercises. They can be performed anytime, anywhere, and don't require a lot of equipment.

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Listed in the Item Bank are some important labels for sections of the image below. To find out more information about labels, some have more details available when you click on them. Drag and drop each label to the corresponding area it identifies in the image.

Answers

The given image is of fermentation. Fermentation is an anaerobic chemical process that breaks down molecules like glucose.

What is fermentation?

These pathways for fermentation are simply more complex versions of glycolysis. Yeast undergoes more reactions than your muscles do, which results in alcohol being produced instead of lactic acid.

Although it's a frequent process, fermentation isn't the sole way to anaerobically extract energy from fuels (in the absence of oxygen).

Anaerobic cellular respiration relies on the movement of electrons from a fuel molecule through an electron transport chain to power the production of ATP, much like aerobic cellular respiration does.

Therefore, The given image is of fermentation. Fermentation is an anaerobic chemical process that breaks down molecules like glucose.

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a 25 year-old patient presents complaining of a sore throat and swollen glands in the back of her neck. upon exam, erythema and white purulent exudates are noted in the tonsillar region. results of streptococcal antigen tests were negative and the patient’s monospot test is pending. cbc with differential normal blood values with the exception of 60% lymphocytes on the differential, 30% of which are "atypical."which is the most likely cause of the patient’s condition?

Answers

Answer:

The reason why they have a sore throat is because they most likely have mono

Explanation:

If your throat is sore and based on the information listed the only possible reason would be is that they have mono

Which of the following statements is true of the food web pictured?

Answers

Answer:

the algae is a primary consumer

How could we safely capture & grow bacteria in the classroom? What precautions do we need to take so we don’t get an infection from our experiment?

Answers

Bacteria can be grow best in warm, moist and protein rich environment. The following precautions we need to take while growing of bacteria:-

use glovesuse lab coatuse safety goggleslong hair should tieafter experiment use sanitizer

Bacteria are small single-celled organisms. Bacteria are found nearly anywhere on earth and are vital to the planet's ecosystems. some species can stay beneath intense situations of temperature and strain. The human frame is complete of bacteria, and in reality is expected to contain more bacterial cells than human cells.

The ancestors of bacteria were unicellular microorganisms that were the primary forms of lifestyles to seem in the world, about four billion years in the past. For about three billion years, maximum organisms have been microscopic, and bacteria and archaea were the dominant forms of life.

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the requirements of biosynthesis are carbon and other essential elements, as well as which of the following? choose one: a. reducing agents and energy for catabolic enzymes b. oxidizing agents and energy for catabolic enzymes c. oxidizing agents and energy for anabolic enzymes d. reducing agents and energy for anabolic enzymes

Answers

The requirements of biosynthesis are carbon and other essential elements as well as (d) "reducing agents and energy for anabolic enzymes."

The question asks for the conditions necessary for biosynthesis. Biosynthesis describes the processes that result in the production of complex polymers from simple monomers.

It indicates that anabolic reactions are being discussed. (Catabolic reactions are those that cause polymers to disintegrate into monomers.) Complex polymers are created by anabolic reactions, which are defined as those processes.

Polymer synthesis is a reduction process. For instance, carbon dioxide is converted to generate glucose during photosynthesis. It implies that reducing agents that convert monomers into polymers are necessary.

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you are studying a chromosome in a new animal species. the presence of what element would make you most confident that a region is facultative heterochromatin and not constitutive heterochromatin?

Answers

Option b The presence of H3K27me element would make you most confident that a region is facultative heterochromatin and not constitutive heterochromatin.

Eukaryotic genomes contain heterochromatin, which serves a variety of purposes including limiting DNA replication and repair and silencing of gene expression. Heterochromatin separates from euchromatin spatially within the nucleus and is preferentially positioned around the nucleolus and nuclear periphery. In contrast to euchromatin, which is less condensed, richer in genes, and more readily transcribed, heterochromatin is highly condensed, gene-poor, and transcriptionally silent (Huisinga et al. 2006). Differentiating euchromatin from heterochromatin are nucleosome changes. The active transcription of DNA into mRNA products occurs in the presence of euchromatin. Gene regulatory proteins and RNA polymerase complexes can attach to the DNA sequence thanks to the unfolded structure, which can then start the transcription process. The distal arms of chromosomes include euchromatin, which is present in a decondensed form. Typically, it is spread out all across the nucleus.

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The process of reading a dna strand and making a complementary dna copy of that strand is called.

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The process of reading a DNA strand and making a complementary DNA copy of that strand is called Replication.

What is the name of the process of copying DNA?

DNA must be duplicated when a cell splits into daughter cells because it houses the genetic code for an organism. Replication is the process of copying DNA. One double-stranded DNA molecule can produce two identical DNA helices through the process of replication.

What is the initial stage of DNA replication?

Step 1: Formation of Replication Forks The double-stranded molecule of DNA needs to be "unzipped" into two single strands before it can be copied. Adenine (A), thymine (T), cytosine (C), and guanine (G) are the four bases of DNA that pair up between the two strands.

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which sequence represents structures organized from most complex to least complex

Answers

The correct sequence that represents structures organized from the most complex to the least complex is oak tree-leaf- guard cell- chloroplast.

A tissue is made of groups of the same kind of cells with a common structure and function.  An organ is a structure that contains at least two different types of tissue functioning together. These are called level of organization .

In plants the cells have cell wall which is the more complex , hence it is considered as most complex structure .The body of a multicellular organism, such as a tree or a cat, exhibits organization at several levels that includes tissues, organs, and organ systems .

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place the following list of steps into the correct sequence for creating a genetically modified organism. a) the gene is transferred to the target organism. b) the bacteria containing the recombinant dna are allowed to reproduce. c) the gene of interest is inserted into a plasmid. d) a plasmid is isolated from a strain of bacteria. e) the plasmid containing the recombinant dna is inserted into bacteria. f) the gene of interest is isolated from the cell of an organism.

Answers

DFCEBA : A plasmid is isolated from a strain of bacteria, the gene of interest is isolated from the cell of an organism,the gene of interest is inserted into a plasmid, the plasmid containing the recombinant dna is inserted into bacteria.

Bacteria and certain other microscopic species contain plasmids, which are tiny circular DNA molecules. Physically distinct from chromosomal DNA, plasmids multiply on their own. They typically include a small number of genes, some of which are transferred from cell to cell and are linked to antibiotic resistance. Recombinant DNA techniques are used by scientists to splice the genes they want to research into a plasmid. The inserted gene is duplicated along with the plasmid as it duplicates itself. Molecular biotechnology has benefited greatly from the development of plasmids. They serve as vectors, or delivery systems, for introducing foreign DNA into bacteria. Beginning in the 1970s, DNA from other creatures was initially "cut and pasted" into particular locations within plasmids.

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Describe the nucleus of an atom

Answers

Answer:

The nucleus of an atom contains the atom's protons and neutrons. It is the higher concentrated region of the atom that contributes to most of its weight. It has a positive charge because the protons are positively charged and the neutron is uncharged.

hope it helps.

In an experiment, a scientist decides to study the effect of exercise on cholesterol levels in people. He studies two set of people—those who exercise every day for an hour and those who don’t exercise at all. In this case, the statement that people who exercise for an hour may have lower cholesterol levels is
. To test this statement, the scientist would measure cholesterol levels in exercisers and non-exercisers. The cholesterol levels would be
.

Answers

The statement that people who exercise for an hour may have lower cholesterol levels is a hypothesis. The cholesterol level would be the dependent variable.

What are hypotheses?

In science, hypotheses are tentative statements made regarding natural phenomena. These statements are untested. They can be tested using relevant experiments.

Thus, hypotheses are usually made before relevant experiments are conducted.

Thus, in the illustration, the statement that people who exercise for an hour may have lower cholesterol levels is considered a hypothesis.

Also, in experiments, there are different types of variables:

Independent variablesDependent variables

Independent variables are supplied by researchers and can be manipulated to produce different outcomes.

Dependent variables are a measure of the effects of the independent variables.

Thus, in the illustration, the level of exercise is the independent variable. The variable that the exercise was hypothesized to affect is the cholesterol level. Meaning that cholesterol level is the dependent variable.

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Why do you think we know very little about the mantle

Answers

We know very little about the mantle because-

For humans, creating a picture of the mantle is very challenging. It is difficult to send a robotic or human mission to the mantle (Earth's core) to observe and gather additional evidence in order to further our understanding of its existence because of the mantle's extreme temperature.

What is Mantle?

A mantle is a layer inside a planetary body bordered below by a core and above by a crust. Typically the thickest and most massive layer of a planetary body, mantles are composed of rock or ice. Planetary bodies that have undergone differentiation by density are known to have mantles. Mantles are found on all planetary moons, all terrestrial planets (including Earth), and a number of asteroids. Silicate rock makes up the Earth's mantle, which lies between the crust and the outer core. Its 4.01 x 1024 kg mass is 67% that of the Earth. It makes up about 84% of the Earth's volume and has a thickness of 2,900 km (1,800 mi). Although it is mostly solid, in geological time it behaves like a viscous fluid.

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Which best describes where the scientists who have contributed to our scientific knowledge were located
The answer is
D. They were from all parts of the world

Answers

So what do you need help with?

For certain breeds of cattle, a bull with solid red fur and a cow with solid white fur will make a roan calf that has both red and white hairs in its coat. What is this genetic inheritance pattern?.

Answers

The genetic inheritance pattern is Codominance.

What is Codominance?

Co-dominance can be said to be a genetic scenario whereby the alleles of a gene are neither dominant nor recessive over one another, hence, they are both simultaneously expressed in the hybrid phenotype. It is one of thee non-mendelian inheritance.

In this case, involving a gene coding for fur colour in the cattle. One of the alleles code for red hair while the other allele for white hairs. Both alleles can be said to be co-dominant because no one is dominant over the other, hence, they produce an hybrid phenotype called Roan where both red and hair phenotypes are seen/expressed.

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through green community practices the members can propose which projects

Answers

The members can propose:

Sustainable Purchasing.Electronic Management.Transportation.pollinator protection.Waste Diversion.Pollution prevention.

A good way to start is to save water drive less walking use less energy buy recycled products eat locally grown vegetables and go green to combat air pollution. These include joining organizations generating less waste and planting more trees.

You are one of twenty-four companies accredited by the United Nations to provide advisory services on climate change. The main goals of the green initiative include offsetting greenhouse gas emissions from human activities and reforestation projects in riparian areas in need of restoration. They act as catalysts for expanding social and economic opportunities and improving quality of life.

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which one of the following correctly matches the organelle with its function

A. cell wall produces energy for the cell
B. nucleus: control center of the cell
C. cell membrane gives rigid structure that supports the other organelles
D. chloroplasts: colorless, jelly-like substance that supports the other organelles




HELP NOW GIVING BRAINLESS ​

Answers

nucleus control center of the cell

In addition to being used to
construct exoskeletons, chitin is
found in the cell walls of
A. animals
B. plants
C. fungi

Answers

Fungi. Chitin is found only in eukaryotic organisms, usually as a shell or cuticle component of crustaceans, insects, molluscs, and nematodes, and as an essential cell wall component of fungi.

The new strain of covid is spreading at the rate of 12% a week. Currently, there are 100,000 people infected with the virus. How long will it take before the virus has infected 800,000 people?.

Answers

The time that it would take the disease to spread is exponential function.

What is the infection rate?

We know that a disease spreads rapidly and that it is possible to make use of a mathematical model to tell the rate at which the infection would spread across board. We have that;

Number of infected people Po =  100,000

Number of people infected after time t = 800,000

Time taken = t

Infection rate = 12%

We then have that;

P(t) = P(o)e^rt

800,000 =  100,000e^0.12t

800,000/100,000 = e^0.12t

8 = e^0.12t

ln 8 = 0.12t

t = ln 8/0.12

t = 17 days

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Why does the upper cells of nail become keratinized?

Answers

Answer:

Explanation:

Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body. Keratin plays an important role in nail health. It protects nails from damage by making them strong and resilient.

What type of photoreceptor enables pricilla to maneuver and see basic shapes in her room in the middle of the night?.

Answers

Pricilla uses Rods to move around and recognize simple shapes in her room in the middle of the night.

How do photoreceptors work?

which convert light into signals that are sent to the brain. Photoreceptors give us both color vision and night vision. The two different types of photoreceptor cells are rods and cones. Numerous eye problems may affect photoreceptor cells.

The initial stage of vision is carried out by specialized neurons known as rod and cone photoreceptors. In the back of the retina, close to the retinal pigment epithelium (RPE), which is a cell layer necessary for photoreceptor survival, are these light-sensitive cells.

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need help filling this graph

Answers

The graph representing number of deer's vs deer population is plotted and discussed below.

What is graph plotting?

A graph plotting is a process of plotting the coordinates given that represent a relation between two quantities and gives an idea of how one quantity varies with respect to other.

Given are the coordinates of Deer population from 1905 to 1939.

We can plot the given coordinates on the graph very easily. Along the x - axis, we will plot the deer population and along the y - axis we will plot number of deer's. The plotted graph is attached with the answer. For a given coordinate say (x, y), the x - coordinate is plotted on x - axis and the y - coordinate is plotted on y - axis.

Therefore, the graph representing number of deer's vs deer population is plotted and discussed above.

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Assume that two characters are controlled by genes we will generically label as A and B. In one instance A and B will be on different chromosomes and in another instance they will be located close to each other on the same chromosome (linked). Using this information, fill in the following table.

Answers

Independent genes are inherited according to the law of independent assortment, while Linked genes are inherirted together. Linked genes: 1) 3:1. 2) No. 3) AB, ab. Independent genes: 1) 9:3:3:1 2) Yes. 3) AB, Ab, aB, ab.

What are independent assortment, linked genes and independent genes?

Independent assortment is a law that states that the alleles from two or more different genes distribute independently from each other in gametes.

A gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes.

These genes segregate independently after crossing over because they are located far away from each other.

Some other genes, however, are too close to each other and do not segregate independently. These are the linked genes, and they do not exhibit an independent distribution, and they inherit together more frequently.  

In the exposed example,

Diallelic Gene ADiallelic Gene B

We will assume these genes express complete dominance.

Linked genes

1)

Parentals) AaBb  x  AaBb

Gametes) AB ab      AB  ab

Punnett square)         AB     ab

                      AB    AABB  AaBb

                       ab    AaBb  aabb

F1) 1/4 AABB + 2/4 AaBb  : 1/4 aabb

2/4 of the progeny is exprected to express the dominant traits, while 1/4 is expected to express the recessive traits.

Phenotypic ratio ⇒ 3:1

2)

No, the law of independent assortment does not apply

3)

Since the parents of these individuals are both true breeding, the gametes are AB and ab.

Independent genes

1)

Parentals)        AaBb        x         AaBb

Gametes) AB Ab aB  ab        AB Ab aB  ab

Punnett square)         AB        Ab          aB        ab

                      AB    AABB     AABb    AaBB    AaBb

                      Ab    AABb     AAbb     AaBb    Aabb

                      aB    AaBB      AaBb     aaBB    aaBb

                      ab    AaBb       Aabb     aaBb    aabb  

F1)

9/16 individuals are expected to express the two dominant traits, A-B-

3/16 individuals are expected to express one of the dominant traits, A-bb

3/16 individuals are expeected to express the other dominant trait, aaB-

1/16 individuals are expected to express the recessive trait, aabb

Phenotypic ratio ⇒ 9:3:3:1

2)

Yes, the law of independent assortment does not apply

3)

Since the parents of these individuals are both true breeding, the gametes are AB, Ab, aB, and ab.

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in giraffes, long necks (n), long legs (l), dark spots (d), and the ability to digest maize (m) are all dominant traits. what possible genotype could a long-necked, short-legged, light-spotted, maize-digesting giraffe have? nnllddmm nnllddmm nnllddmm nnllddmm

Answers

NnllddMM is the correct answer. A genotype is a classification of the type of variant found at a specific location (i.e., a locus) in the genome.

In a broad sense, the term "genotype" refers to an organism's genetic makeup; in other words, it describes an organism's entire set of genes. In a narrower sense, the term can refer to the alleles, or variant forms of a gene, that an organism carries. A genetic test is an obvious way to determine our genotype. Companies like 23andMe can do this fairly cheaply these days. To make this work, scientists must first identify the genetic difference that causes a trait.

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As ocean waves approach shore, their velocity decreases. How does a decrease in velocity affect the frequency and wavelength of the waves
entering the shallow water?

Answers

Velocity is the rate at which something moves in a specific direction. as the speed of a car driving north on a highway or the pace at which a rocket takes off. Because the velocity vector is scalar, its absolute value magnitude will always equal the motion's speed.

Sea waves slow down as they get closer to land. The following equations explain how a wave's velocity, wavelength, and frequency are related:

v= f x λ

the frequency f

equals wavelength

f = 1/λ ..............(1) (1)

In this way, as the wave expands in speed, the wavelength and frequency also rise depending on the circumstance (1). When the velocity drops, the frequency and wavelength both start to get smaller.

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Compare Why is a quarter a better electric conductor than a rubber
eraser?

Answers

Answer:

a quarter is a metal while an eraser is a rubber.

Explanation:

it is simply a difference between conductor and insulators.

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