Stratified epithelia are any tissues that appear in layers and establish linings as well as coverings.
The epithelium is a type of body tissue that surrounds all of the internal and external surfaces of your body, tracks body cavities and hollow body organs, and serves as the main tissue in glands. Epithelial tissue serves a variety of functions in your body, such as protection, secretion, and absorption.
Epithelial tissue is made up of stratified epithelial cells. Cells can be of different shape and structured in a single layer or multiple layers depending on their position in one's body or their functions.
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Please help due soon.
Answer:
eutrophication (last second)
johannes müller discovered that regardless of the nature of stimulation, visual nerves carry only visual information, auditory nerves carry only auditory information, etc. this discovery is known as the
Johannes Müller found that, irrespective of the type of stimulus, visual nerves only carry visual input, auditory nerves only carry auditory information, and so on. The rule of specific nerve is named after this discovery.
According to the law of specific nerve energies, an individual's mind can only access objects in the natural surroundings through the nerves. A philosophical belief has permeated psychology that individuals do not recognize the real world. Essentially, all individuals are blind to the actual world and may only have indirect experiences with it.
The difference in sensory experience is attributable to the various regions of the brain that those nerves stimulate. This is why, whether a person is poked in the eye or there are real light flashes, the eye can encounter flashes of light. The distinct sensations follow the same path to the same spot in the brain.
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List and define all 4 of the Earths system
please help i need to submit it soon
of the taxa listed on the phylogeny, which is more distantly related (least related) to the lungfish? bats ceolacanths birds caecilians
Coelacanths can be considered as the animals (fish) that form the taxa more distantly related and/or least related to the lungfish in a phylogeny that includes bats, coelacanths birds and caecilians.
What are coelacanths?Coelacanths are fish belonging to both current and already extinct species, which are characterized by having intracranial joints, and one conduit which functions like a backbone for these fish species.
In conclusion, Coelacanths can be considered as the animals (fish) that form the taxa more distantly related and/or least related to the lungfish in a phylogeny that includes bats, coelacanths birds and caecilians.
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biochemical safety of ablative yttrium-90 radioembolization for hepatocellular carcinoma as a function of percent liver treated
Biochemical safety of ablative yttrium-90 radioembolization for hepatocellular carcinoma as a function of percent liver treated "hepatocellular carcinoma".
Trans arterial radioembolization can serve as an ablative therapy for early-stage hepatocellular carcinoma (HCC). If the volumetric variability of liver segments, this studied then it aims to characterize the safety of ablative radioembolization by determining percent liver treated (%LT) thresholds associated with biochemical toxicity.
A radioactive element seems to be yttrium-90. In order to treat cancer, radiation treatment employs it.
Patients with ALBI 2 and CP-B liver function are less likely to have an increase in their respective grade/class when treating <14.5% of the liver using glass microspheres whereas ALBI 1 and CP-A patients showed no definitive %LT threshold for biochemical toxicity within the range of this study.
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The diagram shows the apparatus used to investigate osmosis.The volumes of solutions A, B, C, and D were the same at the start of the investigation. After one hour, the solutions moved up the glass tubes. Which solution was the most concentrated at the start of the investigation?
Osmosis occurs when water diffuses from the hypotonic solution (more diluted) to the hypertonic solution (less diluted) until the solute concentration is equal on both sides of the membrane. Ans: Solution D.
What is osmosis?When placing two solutions that differ in concentration separated only by a semipermeable membrane, we will see that only water molecules can pass through the membrane, not the solute molecules.
Water moves in favor of its concentration gradient, this is, it tends to go from the hypotonic solution (most diluted) to the hypertonic solution (less diluted), and keeps doing so until concentrations are equal in the cell interior and exterior.
This is an example of passive transport and it is called Osmosis.
In the exposed example, there were four tubes with equal volumes of solutions.
After an hour, volume at each tube was measured and compared,
Solution D was the one that showed the highest level in the glass tube. This result suggests that more water diffused to this tube compared to the other tubes.On the other hand, Solution A is the one that shows the lowest level in the glass tube. This result suggests that little amount of water diffused into this tube.
According to this comparison, we can assume that solution D was the most concentrated at the start of the experiment. A greater amount of water was needed to equal the solute concentrations at both sides of the membrane.
The answer is Solution D was the most concentrated at the start of the investigation.
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As a researcher, you were asked to grow a cell in a medium containing radioactive nucleotides, which then get incorporated into dna. Upon later examination, the radioactivity appeared to be concentrated in the.
As a researcher, you were asked to grow a cell in a medium containing radioactive nucleotides, which then get incorporated into DNA. Upon later examination, the radioactivity appeared to be concentrated in the Nucleus.
What exactly is a nucleus?
A nucleus is a double-membraned eukaryotic cell organelle that houses genetic material. A diagram of the nucleus highlighting the various components. Furthermore, only eukaryotes have a nucleus, while prokaryotes have a nucleoid.
What are nucleotides?Nucleotides are biochemicals found in mothers' milk that consist of one molecule of phosphoric acid, one molecule of sugar (ribose or dextrose), and one molecule of a purine or pyrimidine. Enzymatically produced nucleotides total five. Nucleotides have been added to some infant formulas to simulate mother's milk.
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insecticide resistance if the frequency of a gene for insecticide resistance is (a constant), then its frequency in the next generation is given by the expression
If an insecticide-resistant gene's frequency is constant, the expression for the gene's frequency in the following generation is given by
[tex]f = \frac{p * (1 + s)}{1 + sp}[/tex]
where s represents the reproductive advantage this gene has in the presence of the pesticide compared to the wild type.
Insecticide resistance: what is it?
Organophosphates, carbamates, pyrethroids, neonicotinoids, and other types of insecticides that have a similar chemical makeup and method of action are classified into groups of insecticides (MOA). The precise mechanism by which an insecticide kills an insect or prevents its growth is known as MOA.
A pest population's susceptibility to a certain insecticide or set of insecticides changes heritably over time, which is referred to as insecticide resistance. The term "pesticide-resistant" refers to insects that consistently resist being sufficiently controlled by the registered rate of an insecticide. In areas with high levels of pesticide resistance, applying insecticides at many times the usual rate may not have any impact on bug populations.
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the golden carp had lived in that harbor all her life and watched with concern as the human port town grew thick and dense like riverweed. what does the phrase grew thick and dense like riverweed suggest about the port town?
The phrase grew thick and dense like riverweed suggest that the port town had its population increasing and is therefore denoted as option A.
What is Population?This is defined as the total number of people which are present in an area at a given point in time and are based on several factors such as availability of food, job opportunities etc.
We were told that the human port town grew thick and dense like riverweed. The words 'thick' and 'dense' were used which signifies an increase in the amount of something which in this case is referred to as the population which is therefore the reason why a population increase was chosen as the most appropriate choice.
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The options are:
The town population is increasing.The town is foggy and difficult to see.The riverweed has spread to the town.The townspeople have built many new buildings.frebel, h., richter, k. and oxenius, a., how chronic viral infections impact on antigen-specific t-cell responses. eur. j. immunol. 2010.
The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.
What are T cells?T cell is also called as T lymphocyte, it is also a important part of immune system. T cell originate in the bone marrow and mature into the thymus.
There are three types of T cells:
T helper cellT killer cellsT cytotoxic cells.Helper T cells secrete chemical messengers called cytokines. Regulatory T cells helps to control immune reactions. They are released into blood streams.
Therefore, The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.
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What roles do membrane proteins play in transporting only certain substances into a cell.
Some allow very specific molecules to pass, even against their concentration gradient. Others work as a one way control. Others let many things go through role do membrane proteins play in transporting only certain substances into a cell.
A molecule is two or more atoms held together by chemical bonds that form the smallest unit of matter that holds its composition and properties. Molecules shape the idea of chemistry. Molecules are marked with element symbols and atomic number subscripts. Atoms are the fundamental devices of elements. They consist of an atomic nucleus and surrounding electrons.
If an atom has an incomplete electron cell, it is said to have valence electrons. When two or more atoms come together to share their outer shell valence electrons, they form a chemical (covalent) bond and enter a lower energy state. When atoms combine, energy is released in an exothermic reaction. When a covalent bond is broken and the molecule splits, an energy input is required, thus making it endothermic.
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How do you think the density of two pieces of gold, one small and one large, would compare?
Answer & explanation:
Density is a fixed thing. The density of a molecule will not change, no matter how much of that molecule there is. A small and a large piece of gold will have the same density, but different weight, because the larger something is the more effect gravity will have.
4. Newly modified proteins from the rough endoplasmic reticulum must be sent to the Golgi
appartus, where they are further sorted and sent to their proper destinations in the cell. How does
the rough ER send such proteins to the Golgi? How does this process "know" how to find the
Golgi membranes in the cell? Describe the process that is used.
What did William Penn hope that the Pennsylvania colony would offer to the
colonists?
A. A place to find gold
B. Better land for farming
C. Strict religious rules
D. Religious freedom and equality
The hope that William Penn had for the Pennsylvania colony was that there would be . Religious freedom and equality.
What was the hope of William Penn?The man called William Penn when the colony was created had several hopes for it. He had hoped that the colony would help people to have the religious freedom that they needed and that all of the people would be free and have equal opportunities with themselves while the colonists would have good dealings with the Indians that lived there as well.
The colony was known for several facts these were from the fact that it had low debts, it had the freedoms of religion and the people had peaceful coexistence with themselves and the Indian Americans.
Hence we would say that The hope that William Penn had for the Pennsylvania colony was that there would be . Religious freedom and equality.
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Answer:
The answer is
Explanation:
Got it right on
The area of the brain involved in production of speech is __________. a. broca’s area b. wernicke’s area c. the occipital lobe d. the parietal lobe please select the best answer from the choices provided a b c d
Answer: c
Explanation:
list three questions that microbiologist might ask about what he or she is studying
Answer:
Just go with something kind of simple like...
ex: "What caused this virus to mutate or come to be?" or "Where could I find this fungi and what are the perfect environmental conditions for it to grow in?"
Explanation:
"Microbiologists study microorganisms such as bacteria, viruses, algae, fungi, and some types of parasites. Work Environment: Microbiologists work in laboratories and offices, where they conduct scientific experiments and analyze the results."
Describe the system
you will model and
how you will model it.
Why did you choose
this type of model?
Answer:
fashion model
Explanation:
because a person who loves fashion will always make sure that he or she's always be a model
the acquired pellicle forms on: group of answer choices restorations. exposed tooth surfaces. dental calculus. dental crowns. all of these are correct.
The acquired pellicle forms on all of the above mentioned that is on restorations, exposed tooth surfaces dental calculus and dental crowns.
A protein film known as the dental pellicle, also known as an acquired pellicle, develops on the surface of enamel, dentin, artificial crowns, and bridges as a result of the selective binding of salivary glycoproteins that stop the continuous deposition of salivary calcium phosphate. It develops quickly after brushing a tooth or after chewing. After consuming carbs, it shields teeth from the acids that oral microbes produce.
Plaque is a biofilm that forms over the enamel of the pellicle and is made up of numerous types of bacteria and their byproducts. If the plaque is not removed, the surrounding environment will become acidic after several days to weeks of plaque production.
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explain why capillary blood glucose tests, capillary cholesterol tests, and wic hematocrit testing be conducted under a clia certificate of waiver
Waived tests are those tests that are must be determined by the CDC or the FDA to be so simple that there is very little risk of error so that is capillary blood glucose tests, the capillary cholesterol tests, and the wic hematocrit testing be conducted as under a clia certificate of waiver
The Clinical Laboratory Improvements Amendments (CLIA) Program are regulates labs testing in human specimens and to ensures that they provide the accurate, reliable, and the timely patient test results no matter which where the test is being done. CLIA is Certificates of the Waivers are required for other laboratory and testing done in the schools. If staff is within the school, that are not associated with the local and public health department or the clinic, are performing testing (such as the health aide checking the blood glucose levels) then a CLIA certificate is needed by the school.
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What structural property of dna gave watson and crick the idea that dna replication was likely to proceed via a semiconservative mechanism?.
The structural property of DNA that gave Watson and crick the idea that DNA replication was likely to proceed via a semiconservative mechanism is the The complementary nature of base pairing between the two strands.
The semi-conservative approach seems to be most likely based on the structure of DNA, in which each strand of DNA acts as a template to create a new, complimentary strand. because of this semi conservative base pairing the new strand is formed due to complimentary bases present on each strand.
Process of Semi conservative DNA replication:
The double helix splits into two single strands when the enzyme DNA helicase dissociates the hydrogen bonds holding the two polynucleotide DNA strands together.Then, every initial single strand serves as a model for a new strand. Through complementary base pairing, free-floating DNA nucleotides connect to the exposed bases on each original template strand.The enzyme DNA polymerase connects the nucleotides of the new strands. The sugar-phosphate backbone is created by this. The bases on the original and new strands create hydrogen bonds, and the strands twist to form the double helix.Semi-conservative replication is the process of replicating DNA by using one strand from the original DNA molecule and one new strand in each new DNA molecule.To learn more about DNA replication visit the link:
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3)lisa is working on a science project. her task is to answer the question: "does rogooti (which is a commercial hair product) affect the speed of hair growth". herfamily is willing to volunteer for the experiment. a)describe how lisa would perform this experiment. identify the control group, and the independentand dependentvariablesin your description.
In an experiment, the independent variable influences the dependent one. Independent variable: Hair product rogooti. Dependent variable: Speed of hair growth
What are the dependent and independent variables?
Before conducting an experiment, you need to define variables. Usually, there are several variables involved, and many of them can influence the results, so you need to discriminate the variables you are interested in from the ones you are not.
There is a variable that you, as a researcher, change to observe how these modifications affect the results. This is one of the variables you are interested in and is the INDEPENDET variable.
There is another variable that turns out to be affected by the change you provoked in the independent variable. You are also interested in this one because you want to know how it responds to these changes. This is the DEPENDENT variable because it will respond to any change in the independent one.
Finally, all the remaining variables that you are not really interested in, but might influence the results, need to be controlled so they do not affect your experiment. These variables are kept constant and equal in all the involved experimental and control groups. These are the CONTROLLED variables.
What are the control and the experimental group?You also need to define the groups you will be working with.
There is a group to which you will expose to the independent variable, this is, to the treatment. These individuals will be affected by the change you make in the independent variable. This is the EXPERIMENTAL group.
There is another group that should always be present. This group does not receive the treatment. It is significant because it can reflect any other variable affecting the experiment that you missed to consider. This is the CONTROL group.
In the exposed example,
We will assume Lisa's familymembers are her parents, a brother, and a sister.
Experiment duration: one month
She needs to test if this product affects the speed of hair growth so she will choose two groups: a control group and an experimental group.
The control group ⇒ father and sister ⇒ Usual product.The experimental group ⇒ mother and brother ⇒ Rogooti.
Every Monday at 8:00 for four weeks, Lisa will record the lengths of all the family members' hair.
Once the month is complete, she will analyze the results by comparing the recorded measures. This is how she will get to know if there was a difference between the control and the experimental group, and hence, if rogooti increases or not the speed of hair growth.
If the product works, the experimental group will show more centimeters of new hair in comparison with the control group.
Independent variable: Rogooti productDependent variable: Speed of hair growth
If it works, the new product will influence or affect the speed at which the hair grows.
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The field that involves the study of cells and how they interact with other cells is termed.
The field that involves the study of cells and how they interact with other cells is termed Cell biology.
What kind of interactions occur between cells?Signals are sent and received by cells to communicate. Both environmental and cell-based signals are possible sources of information. These signals must cross the cell membrane in order to activate a response. On occasion, the signal itself can pass through the membrane.
Cell biology is the study of cell structure and function, and it revolves around the concept that the cell is fundamental unit of life.
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these bacteria, archaea, and eukaryotic microbes are found in our skin, nose , mouth , gut, and genital/urinary tract. what do we call this?
The correct answer is Human Microbiome Project where bacteria, archaea, and eukaryotic microbes are found in our skin, nose , mouth , gut, and genital/urinary tract .
The Human Microbiome Project's goal is to characterise the human microbiome and investigate its role in human health and disease. The human microbiome is defined as the collection of microbes that inhabit the human body, including bacteria, viruses, and single-cell eukaryotes. The HMP's goals are to: (1) use new, high-throughput technologies to characterise the human microbiome more fully by studying samples from multiple body sites from at least 250 "normal" volunteers; and (2) see if there are any links between changes in the microbiome and health. The human microbiota is made up of the 10-100 trillion symbiotic microbial cells that each person carries, primarily bacteria in the gut; the human microbiome is made up of the genes that these cells carry.
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improved intravitreal aav-mediated inner retinalgene transduction after surgical internal limitingmembrane peeling in cynomolgus monkeys
Because it is easily accessible and has a mild immune response, the retina makes a good target for gene therapy.
In a mouse model, the inner retina was highly effectively transduced by an intravitreally injected adeno-associated virus (AAV) vector.The vitreous and internal limiting membrane (ILM) operated as obstacles to transduction in large animals, reducing the efficacy of retinal transduction. Before administering AAV vectors, we performed vitrectomy (VIT) and ILM peeling on cynomolgus monkeys to get around these obstacles. The findings suggest that surgical ILM peeling prior to AAV vector delivery would be beneficial for retinal disease treatment and safe for effective transduction of the nonhuman primate retina.Learn more about the adeno-associated virus (AAV) with the help of the given link:
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si units are the modern form of the
Answer:
Metric system
Explanation:
"The International System of Units (SI) is system of units of measurements that is widely used all over the world. This modern form of the Metric system is based around the number 10 for convenience. A set unit of prefixes have been established and are known as the SI prefixes or the metric prefixes (or units)."
During which weeks in the moon’s cycle does the moon appear to be getting smaller? (1 point)
A. week 3 and week 4
B. week 1 and week 4
C. week 1 and week 2
B. week 2 and week 3 pls help I need this
guys why is it important to know the three different type of rocks?? ( i need help please i have a 45 in this grade :(
Rocks are classified into the three different types for easy identification.
What are rocks?Rocks are rigid structures in geology which are made up of various minerals such mica, halite, and calcites.
There are various types of rocks which include the following:
Igneous rocks: These are the rocks that are formed when molten magma cools from a volcanic eruption. The commin types of igneous rocks include:felsic, intermediate, mafic, and ultramafic.Sedimentary rocks: These are the types of rocks formed from deposition of mineral or organic materials. The common types of sedimentary rocks include: breccia, conglomerate, sandstone, siltstone, and shale.Metamorphic rocks: These are the type of rocks formed when sedimentary or igneous rocks are being subjected to high pressure or high heat. The common types of metamorphic rocks include phyllite, schist, gneiss, quartzite and marble.The above classification is very important especially to geologists for easy identification of rock that are under study which can easily be differentiated through their various composition and texture.
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list and describe the three variables of freshwater habitats that are different from variables that affect land habitats.
The habitat which affects the land habitats is temperature, water and moisture, and light.
What are land habitats?Different factors affect temperature, water, and moisture. Air, water and temperature, and many other factors affect the climatic conditions and affect the habitat as well.
Habitat is a dwelling place of animal. Birth rate, death rate and immigration are also some of the factors which affect the habitat.
Biotic factors, abiotic factors also affect the land habitat. Soil culture, soil shape and other factors also affects the land habitat.
Therefore, The habitat which affects the land habitats is temperature, water and moisture, and light.
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populations change over time by the process of select answer , which proceeds by the major mechanism of select answer
populations change over time by the process of Evolution , which proceeds by the major mechanism of natural selection
Evolution is phenomena of population in which the heritable characteristics of the organisms are changed over time through successive generation.
Evolution occurs because the environment is continuously changing and the organisms have to adapt themselves in the condition for survival.
One of the major process by which evolution occurs is natural selection. It is process in which the individual who are more adapted to the environment will be only selected by the nature and will be able to produce offsprings.
Other than natural selection, evolution can occur by genetic drift, mutation, etc.
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4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as blank, blank, and blank.
hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as Oak, teak and iroko.
Woods of the trees can be divided into hardwood and softwood depending on the hardness and compactness of the wood.
hardwoods are the trees that have hard and compact wood like oak, cherry, maple, teak, iroko, etc.
They are more durable, need low maintenance, more costlier as compared to the softwood. They have low sap contain and good resistance against fire.
The seed of hardwoods are covered with a coating which develops into fruits or shells. They are slow growers and mostly belong to angiosperm class.
Softwood are trees with soft wood mostly belonging to gymnosperm group.
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