Explanation:
it is to supply enough food, housing and other basics to meet the needs of everyone in the country
Which type of cell has a cell wall?
A. Human skin cell
B. Animal cell
C. Fungi
D. Virus
Answer: Fungi
Explanation:
(Explanation from samiyah83)
Examples of organisms with cell walls are plants, fungi, protists (particularly molds and algae), and most bacteria (a few exceptions are mycoplasma and L-form bacteria) have cell walls. Animals and heterotrophic protists do not have cell walls.
the white matter of the spinal cord contains . group of answer choices myelinated nerve fibers only unmyelinated nerve fibers only myelinated and unmyelinated nerve fibers soma that have both myelinated and unmyelinated nerve fibers
Option A: the white matter of the spinal cord contains myelinated nerve fibers only.
The central nervous system (CNS) comprises the brain and spinal cord. It generally contains two types of tissues: white matter and gray matter. White matter appears pinkish white while the gray matter is a darker hue. White matter is located in the outer regions of the CNS while the gray matter is located closer to the CNS.
The white matter of the central nervous system consists of myelinated nerve fibers. This further means that it contains axons that are covered by a protected covering of myelin. The characteristic color of white matter is acquired from myelin which is generally made up of lipid tissue. Myelin protects the nerve fibers from any injury.
The white matter of the spinal cord is composed of axons that are covered by myelin. The primary function of white matter is to coordinate and signal a to and fro motion between the brain and the spinal cord.
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The cells that rhythmically and spontaneously generate action potentials in the heart are called ___
The cells that rhythmically and spontaneously generate action potentials in the heart are called pacemaker cells
The pacemaker cells are the ones that help in the maintenance of the action potential and that action potential work as an electrical clock that provides the automaticity to coordinate the pacemaker cells it divides the action potential into 4 phases among which in phase 4 the ion channels open that conducts slow, inward ( depolarizing Na+ ) currents and they are called as funny currents which cause the membrane potential to spontaneously depolarize, thereby initiating phase 4 and at the -50mV T type Ca 2 + channels open and further depolarize the cells and in some way, L type Ca+ channel opens when membrane reaches -40mV and this further results in the more Ca+ enter to depolarize the cell further until an action potential threshold is reached.
At phase 0 depolarization is primarily caused by increased Ca+ current through L-type channels that began to open toward the end of phase 4.. In contrast, the T-type channel's Ca+ current slows as these channels close and in phase 3 K+ channels open thereby increasing the outward directed hyperpolarizing K+ winds and decreases the inward of Ca+ and hyperpolarization takes place and then again enter in phase 4 hence the pacemaker cells maintain the action potential by dividing and circulating in 3 different phases.
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comparative study of phrenic and intercostal nerve transfers for elbow flexion after global brachial plexus injury
Comparative study of phrenic and intercostal nerveGlobal brachial plexus injuries (BPIs) give out the result as devastating events frequently resulting in severe functional impairment. The widely used nerve transfer sources for elbow flexion in patients with global BPIs include intercostal and phrenic nerves.
The comparative study of the phrenic and intercostal nerve that transfers after global brachial plexus injury for purpose of elbow flexion is studied and the aim of this study was to do a comparison for elbow flexion after global BPI.
A retrospective review of 33 patients treated with phrenic and intercostal nerve transfer for elbow flexion in posttraumatic global root avulsion BPI was carried out. In the phrenic nerve transfer group, the phrenic nerve was transferred to the anterolateral bundle of the anterior division of the upper trunk (23 patients); in the intercostal nerve transfer group, three intercostal nerves were coapted to the anterolateral bundles of the musculocutaneous nerve.
The efficiency of motor function in the phrenic nerve transfer group was 83%, while it was 70% in the intercostal nerve transfer group.
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In which two ways do cells use the sugar made in photosynthesis?
A. To produce more oxygen
B. To store chemical energy
C. To make more complex carbohydrates
D. To store inorganic matter
The two ways cells use the sugar made in photosynthesis are to store chemical energy and to make more complex carbohydrates. Therefore, options B and C are correct.
Glucose produced during photosynthesis is stored as chemical energy in the form of complex molecules like starch or glycogen. These energy-rich molecules act as long-term energy reserves that can be later broken down through cellular respiration to provide ATP.
It is also used as a building block to synthesize more complex carbohydrates like cellulose, which forms the structural component of cell walls in plants.
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the fibrin clot begins to form when fibrinogen is cleaved resulting in a fibrin monomer, fibrinopeptide a, and fibrinopeptide b fragments. the fibrin monmers sponaneously polymerize due to hydrogen bonding, and then are covalently linked into fibrin polymers by which factor?
The factor involved in the process is Factor XIII.
What is clotting of blood?Blood is said to clot when a solid mass appears over the point where the skin has been injured. The appearance of a clot would stop the bleeding over the point that has been affected by the injury.
There are many biological factors that contribute to the clotting of blood. The fibrin clot begins to form when fibrinogen is cleaved resulting in a fibrin monomer, fibrinopeptide a, and fibrinopeptide b fragments. The fibrin monomers spontaneously polymerize due to hydrogen bonding, and then are covalently linked into fibrin polymers by Factor XIII.
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What is the purpose of all interactions among the components of a climate system?(1 point) to assist human activities such as shipping and farming to assist human activities such as shipping and farming to transport different species of animals around the globe to transport different species of animals around the globe to create various weather patterns on earth to create various weather patterns on earth to transfer thermal energy around the world
The main purpose of all interactions among the components of a climate system is to create various weather patterns on earth. So, the correct option is C.
The earth's surface is where several elements of the climate system come together. Modeling (or recreating) the climate system requires an understanding of its many sections or components.
This chapter outlines the fundamental elements of the Earth that make up the climate system, as well as the fundamental scientific concepts and vital procedures required to model each of these elements.
The Atmosphere, Ocean, Ice, and Land are some of these elements. Individual processes are often gathered into a model of one system component, with the climate system being depicted as a collection of building blocks.
To depict the overall climatic system, the components are connected to other components. The ability to construct a representation of the system, such as a climate model, depends on being able to comprehend and then depict the interactions between processes and between components.
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fecal transplant in children with clostridioides difficile gives sustained reduction in antimicrobial resistance and potential pathogen burden
It is true that Fecal microbiota transplantation (FMT) for CDI treatment in children reduces potential pathogen burden and antimicrobial resistance.
Fecal microbiota transplantation (FMT) also known as stool transplant, intestinal microbiota transplantation or bacteriotherapy is performed through a colonoscopy where the microbiota (healthy bacteria) from the carefully screened donor’s feces is transferred to the colon of the recipient.
Children with Clostridioides difficile infection (CDI) treated with fecal microbiota transplantation (FMT) have lower levels of potential pathogens and genes associated with antimicrobial resistance (AMR), as well as altered microbiota makeup and function. However, the acquisition of some AMR genes post-FMT and the low levels of possible pathogens discovered in donors imply that more research into the screening of donors using metagenomics sequencing prior to FMT is necessary.
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How does air in the lungs differ from the fresh air that enters the body during inspiration?
During inspiration, the diaphragm and external intercostal muscles flex, causing the rib cage to enlarge and move outward as well as the thoracic cavity and lung volume. Because the internal pressure is lower than the ambient pressure, air is drawn into the lungs.
Where on the body is the thoracic region?The thoracic spine is present in the upper and middle part of the back. Twelve vertebrae, designated T-1 through T-12, make up the thoracic spine. T-1 through T-5 nerves have an impact on the mid-back, abdominal, and upper chest muscles. The spinal column is numbered, and each number represents a section of the spinal cord's associated nerves.
What results in thoracic pain?Inflammation of the thoracic spine's muscles or soft tissues is the most typical cause of thoracic back pain. There are several causes of this inflammation, including abrupt sprains or strains (as in car accidents or sports injuries). slouching while standing or sitting over time.
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The movement of water in and out of the renal tubules can be increased or decreased. the tubular cells are able to do this, by changing the number of water channels, also called?
The movement of water in and out of the renal tubules can be increased or decreased. the tubular cells are able to do this, by changing the number of water channels, also called Aquaporins.
Nephrons are the structural and functiona unit of kidney. It is divided into different parts like glomerulus, proximal convulated tubule, distal convulated tubule, loop of henle and collecting duct which performs different function of urine formation.
Renal tubule is the part of the nephron that consist of proximal convulated tubule, distal convulated tubule, loop of henle.
Renal tubules have water channels called aquaporins which helps in transporting water into the cell. They can increase or decrease the number of water channel to control the concentration of urine.
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If a culture of liver cells were deprived of amino acids, which category of macromolecule would the liver cells not be able to construct properly?.
The liver cells wouldn't be able to produce the macromolecules in the protein category adequately.
Describe a macromolecule:A macromolecule, such as a protein or nucleic acid, is a very big molecule crucial to biophysical processes. It is made up of many atoms that are covalently bound. The smaller molecules known as monomers are the building blocks of many macromolecules. More atoms make up macromolecules than there are in regular molecules.
What is the function of macromolecules?The job of macromolecules is to sustain structures. act as a repository for fuel to maintain and retrieve genetic data.
What is an example of a macromolecule?Proteins, nucleic acids, and polysaccharides are typical examples of macromolecules.
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Which of the following animals generally has the lowest volume of urine production? a. vampire bat b. salmon in fresh water c. marine bony fish d. freshwater bony fish
The following animals generally has the lowest volume of urine production
c. Marine bony fish
All bony fish have segmented fin rays that are derived from their epidermis and sutures in their neurocranium. Both bony fish and cartilaginous fish have gills for breathing, but the gills of bony fish are protected by a hard, bony plate. Bony fish may also have prominent rays, or spines, in their fins; this characteristic is known as a "operculum".
Bony fish, in contrast to cartilaginous fish, have swim or gas bladders to control their buoyancy. On the other hand, cartilaginous fish require constant swimming to maintain buoyancy.
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A chicken has 78 chromosomes in its somatic cells. How money chromosomes did the chicken inherit from each parent? How many chromosomes are in each of the chicken's gametes? How many chromosomes will be in each somatic cell of the chicken's offspring?
If a chicken has 78 chromosomes in its somatic cells, then it has inherited half the number of chromosomes from each parent i.e 39 from each parent. There are 39 chromosomes in each of the chicken's gamete. There will be 78 chromosomes in each somatic cell of the chicken's offspring.
The gamete cells divide by the process of meiosis whereas the somatic cells divide by the process of mitosis.
During the process of meiosis, the number of chromosomes is reduced to half. Hence, the gamete cells contain half the number of chromosomes as the somatic cells. If fertilization occurs, the other half of the number of chromosomes is inherited from the other parent. Hence, a chicken will inherit half the number of chromosomes from each parent.
Somatic cells in the body divide by the process of mitosis. The process of mitosis produces genetically identical copies. Hence, the chromosome number will remain the same i.e 78 in the somatic cell of the chicken's offspring.
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The cell membrane is _______ (or selectively permeable), meaning it controls the passage of molecules in and out of the cell. p/orn
Answer: The answer is semipermeable
Explanation:
After a cow is given antibiotics to treat an infection, a vet gives the animal a drink of "gut culture" containing various prokaryotes. Why is this necessary?
The prokaryotes in the cow's intestines that break down cellulose would most likely be killed by antibiotic therapy.
This is further explained below.
What is an Antibiotic?Generally, Antibiotics are drugs used to treat bacterial illnesses in both people and animals.
They do this by either killing the germs or by making it harder for them to develop and reproduce. Germs are bacteria.
They are everywhere in our bodies, both inside and outside, and in the surroundings.
In conclusion, The cellulose-digesting prokaryotes in the cow's intestines would probably be killed by antibiotic therapy.
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Compare the concentrations listed in the table for methadone and phenobarbital. Which concentration is higher? By how much?
Combining methadone with drugs that depress the central nervous system, such as phenobarbital, can have severe adverse effects, including breathing difficulties, unconsciousness, and even death.
What is methadone?Methadone is a drug that the Food and Drug Administration (FDA) has licensed for both pain management and medication-assisted therapy (MAT) for opioid use disorder (OUD). Methadone is a safe and reliable drug when used as directed.
Methadone assists people in achieving and maintaining recovery as well as reclaiming active and fulfilling lives. A complete treatment program that combines counseling and other behavioral health therapies in order to provide patients with a whole-person approach also incorporates methadone as one of its components.
Therefore, combining methadone with drugs that depress the central nervous system, such as phenobarbital, can have severe adverse effects, including breathing difficulties, unconsciousness, and even death.
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Which is an abiotic factor? a a polar bear on an ice floe b a forest of deciduous trees c fungi and moss on a rotting log d an ocean current of cold water
The abiotic factor is (d) an ocean current of cold water.
Abiotic factor are those that do not perform the basic processes of life. These processes are: respiration, excretion, digestion, movement and reproduction. Although these factors do not perform any life processes, yet they are essential for the environment and the living organisms to sustain. The examples are: water, sunlight, soil, rocks, etc.
Ocean currents are the movement of ocean water. This movement is regulated by several factors like gravity, direction of wind, density of water, climate, etc. The ocean water can have movement in two directions: vertical and horizontal.
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How is habitat disturbance absolutely necessary for the long-term survival of the woodpecker?
The habitat destruction leads to urbanization and increase in richness of woodpecker species.
In urban settings, woodpeckers are relatively frequently recorded. Their habitat preferences and the habitat quality of the territories found in an urban matrix are not, however, thoroughly investigated. Urbanization may lead to the depletion of dead wood resources, which are essential for the existence of woodpeckers. Dead wood resources, which generally took the form of dead tree limbs, were a key factor in the richness of a society.
Municipal greenery offers very few dead wood supplies, hence woodpeckers stayed away from this type of habitat. Studies revealed a correlation between species abundance and the availability of dead wood and canopy covering. According to certain research, less tended urban green spaces are essential for the presence of woodpeckers, and management of urban greenery is a significant factor that affects woodpecker assemblage.
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Which of the following is not a major activity of the stomach? a. mechanical digestion b. HCl production c. nutrient absorption d. enzyme secretion
c. nutrient absorption is not a major activity of the stomach
What is the stomach's main function?Acid and digestive enzymes are produced by the stomach. The stomach is lined with , which are ridges of muscular tissue. Periodically contracting, the stomach muscles churn the food to speed up digestion. Food can go from the stomach to the small intestine when the pyloric sphincter, a muscle valve, relaxes.
Propulsion—peristaltic smooth muscle contractions that move food from the fundus to the constricted pylorus—is how mechanical digestion happens in the stomach.
As the muscular layers in the stomach lining flex, a mixing and churning action is created, which is mechanical digestion.
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How is the lunar-linked rhythm of fiddler crab courtship similar in mechanism and function to the seasonal timing of plant flowering? (See Concept 39.3.)
In both cases, the detection of periodic variation in the environment results in a reproductive cycle timed to environmental conditions that optimize the opportunity for success.
What is lunar-linked rhythm ?Seashore plants and animals are subjected to a rhythmic change by the lunar tidal rhythm, which is the regular ebb and flow of oceans and very large inland bodies of water. Typically, two high and two low tides occur each day (about 24.8 hours).
Circadian rhythms provide a crucial function by preparing your body for impending environmental changes including, for instance, the best times to be active, sleep, and eat. The sun's light/dark cycle is the most powerful external stimulus.Learn more about Circadian rhythm here:
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question which hormones does the body release under stress? estradiol and luteinizing hormone estradiol and luteinizing hormone estrogen and progesterone estrogen and progesterone epinephrine and norepinephrine epinephrine and norepinephrine insulin and prolactin insulin and prolactin
epinephrine and norepinephrine hormones the body release under stress
What hormone produced by the adrenal gland is involved in the stress response?The adrenal medulla, the innermost region of the adrenal gland, regulates the chemicals that trigger the flight or fight response. The adrenal medulla secretes two primary hormones: epinephrine (adrenaline) and norepinephrine (noradrenaline), which have comparable roles.
Cortisol is known as the stress hormone because it is implicated in stress responses. It raises blood sugar, raises blood pressure, and lowers immunological responses.
Cortisol influences various parts of your body, primarily regulating your body's response to stress.
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Answer: epinephrine and norepinephrine hormones the body release under stress
Explanation: When brain go brrr, its makes these chemicals so brain can stop going brrr.
Snap dragon flower color displays incomplete dominance. Which is the likely phenotypic ratio of the f2 progeny resulting from a monohybrid cross of true-breeding parents with white and red flowers?.
The correct answer is 1 red : 2 pink : 1 white
A monohybrid cross is made up of two organisms that have distinct variants at the same genetic locus. In a monohybrid cross, the character(s) under investigation are controlled by two or more mutations at a single gene locus. Each parent is selected to be homozygous or true breeding for a particular characteristic in order to perform such a cross (locus). When a cross meets the requirements to be classified as a monohybrid cross, it is typically identified by a distinctive distribution of second-generation (F2) offspring, also known as the monohybrid ratio. A monohybrid cross is a cross between two homozygous individuals, which produces the opposite phenotype for a particular genetic characteristic.
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Which best describes the role of communication in scientific investigations?
O Communication can help identify good scientific questions to further investigate.
O Communication is not necessary once the data are collected because the scientists can d
themselves.
O Communication should not be used in planning the experimental design because the scien
ideas.
O Communication is important because the scientists need to convince other researchers not to challenge their results
Answer:
Communication can help identify good scientific questions to further investigate.
Explanation:
Regular distribution is observed for many organisms due to _______. a. the need to maximize exposure to sunlight b. the need to avoid predators c. interactions between individuals d. the plentiful availability of water please select the best answer from the choices provided a b c d
Answer:
The answer is C.
Explanation:
hope this helps!!
The unicellular glands that directly and specifically secrete mucus are also called ________ cells.
The unicellular glands that directly and specifically secrete mucus are also called goblet cells.
In order words, goblet cells are refers to unicellular glands which directly and specifically secrete mucus.
These goblet unicellular gland cell are of economic importance as they help in the production and maintenance of the protective mucus blanket by producing molecular glycoproteins called mucins.
Unicellular glandsThese are gland which functions only as a single gland and are characteristized by just single cells only.
So therefore, the unicellular glands that directly and specifically secrete mucus are also called goblet cells and are of great economic importance simply because they help in the production and maintenance of the protective mucus blanket by producing molecular glycoproteins called mucins.
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When you breathe, oxygen moves from your lungs into your blood and then into tissues. To do this, oxygen moves across membranes by ______ and from ______ concentration of oxygen.
When you breathe, oxygen moves from your lungs into your blood and then into tissues. To do this, oxygen moves across membranes by diffusion and from higher to lower concentration of Oxygen.
What occurs after oxygen leaves the lungs and enters the blood?The air sacs' flimsy lining allows oxygen from the inhaled air to cross across and enter the blood vessels. Diffusion refers to this. The bloodstream then transports the oxygen in the blood throughout the body, allowing it to reach every cell. The bloodstream releases carbon dioxide as oxygen enters it.
Diffusion is the process of movement of molecules higher to lower concentrations.
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paleolithic cooking vessels such as the jomon vessel were decorated by pressing slender ribs of onto the body of the pot in a diamond pattern?
Jomon ceramic vases are the oldest in the world and their printed decoration, reminiscent of a rope, is the origin of the word jomon, which means 'cord pattern'. not diamond pattern.
What is Jomon ceramic vases?Most Jomon pottery has rounded bases and the vases are typically small. This shows that the pots would typically be used for cooking food, perhaps suitable for a campfire. Later pieces of Jomon pottery are more elaborate, especially during the Middle Jomon period, where the edges of pots became much more intricate and decorated.
With this information, we can conclude that The name Jomon itself means “standard rope”. This refers to the impressions on the ceramic surface that were created by pressing strings into the clay before it was heated to approximately 600-900 degrees Celsius.
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huntington's disease is caused by a dominant allele (h) at an autosomal gene. the disease causes neurodegeneration, and people that have it often die at a young age. you are studying a population and find that the frequency of genotype hh is 0.09. what change might you expect to see in this population over time?
The Huntington's disease is caused by autosomal dominant mutation in HTT gene.
Frequency of genotype HH = 0.09 as H is mutant allele, hence in the population gene frequency change over time.
Huntington's disease is a progressive brain sickness due to a faulty gene. This disease reasons adjustments within the vital region of the brain, which have an effect on motion, mood and wondering talents. An inherited situation wherein nerve cells within the brain wreck down over the years. It normally starts off evolved in a person's 30s or 40s. Commonly, Huntington's disorder consequences in innovative motion, thinking, and psychiatric signs. No therapy exists, however capsules, bodily remedy, and talk remedy can help manipulate some signs.
The price of disorder progression and duration varies. The time from the first symptoms to loss of life is regularly about 10 to 30 years. Juvenile Huntington's disease generally outcomes in death inside 10 years after symptoms increase.
There may be presently no therapy for Huntington's disease or any manner to stop it getting worse. but remedy and assist can help reduce some of the issues it causes, such as: temper swings and involuntary movements. Occupational therapy to help make ordinary obligations less complicated.
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Three-chambered hearts with incomplete septa were once viewed as being less adapted to circulatory function than mammalian hearts. What advantage of such hearts did this viewpoint overlook?
Because some oxygen-depleted blood from the systematic circuit that was returned to the right ventricle would have mixed with the oxygen-rich blood in the left ventricle, the O2 level would be unusually low.
Why do certain animals' hearts have three chambers?Amphibians and reptiles have three chambers in their hearts for the following reasons: Their lower metabolic rates result in a lower oxygen need per litre of blood. A frog's heart, for example, contains three chambers: one ventricle and two atria.
What are the advantages of a three-chamber heart?A three-chambered heart is preferable to a two-chambered heart because it can exert greater pressure on the blood arteries to guarantee that oxygenated blood flows into the body and deoxygenated blood is sent to the lungs.
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PLease please please help i really need this
In humans the kidneys control the amount of water, salts and other solutes leaving the body by sieving blood through their millions of twisted tubules. When a person drinks too much water in a short period of time, the kidneys cannot flush it out fast enough and the blood becomes waterlogged. Drawn to regions where the concentration of salt and other dissolved substances is higher, excess water leaves the blood and ultimately enters the cells, which swell like balloons to accommodate it.”
How could the process of osmosis explain this phenomenon? Support your answer with evidence from the text above.
Type your answer in the space below
Water molecules moves from the diluted blood to cells where there are more dissolved solutes across the cell membranes through the process of osmosis.
What is osmosis?
Osmosis is the process by which water moves across a semi-permeable membrane from regions of low solute concentration to regions of low solute concentration.
The movement of water molecules is down their concentration gradient as the fewer number of solute molecules in one region of results n water molecules moving across the semi-permeable membrane to where there are fewer water molecules.
When an individual takes in water more than the kidney can remove from blood at a given time, the water molecules moves from blood to cells where there are more dissolved solutes across the cell membranes through the process of osmosis.
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