In prokaryotes, new mutations accumulate quickly in populations, while in eukaryotes, new mutations accumulate much more slowly. The primary reasons for this are prokaryotes reproduce quickly and have vast populations.
Prokaryotes V/S EukaryotesProkaryotesProkaryotes are organisms consisting of cells that don't have cell nuclei or any organelles that are enclosed in membranes. It follows that prokaryote's DNA is not contained within a nucleus.
The following components could be found in a normal prokaryotic cell:
The membrane enclosing and guarding the cell is known as the cell wall.All of the cell's internal components, excluding the nucleus, are called cytoplasm.Some prokaryotic cells have filaments made of proteins called flagella and pili.A nucleoid is a cell structure that resembles a nucleus and contains genetic material.A plasmid is a little DNA molecule with independent reproduction.EukaryotesEukaryotes are organisms made up of cells with membrane-bound organelles and a nucleus that contains DNA in the form of chromosomes. Eukaryotic organisms can have several cells or just one cell. Eukaryotes make up all animal life. Protists, fungi, and plants are examples of additional eukaryotes.
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What is the prominent red blood cell (rbc) morphologic feature found in lead poisoning (plumbism)?
The basophilic stippling is a prominent red blood cell, morphologic feature found in lead poisoning (plumbism).
The basophilic stippling is a frequent manifestation of hematologic disease in the peripheral blood, and it is also observable in bone marrow aspirates.
The lead poisoning inhibits the ability to produce hemoglobin by interfering with enzymatic steps in the heme synthesis pathway and reduce red blood cells, which results in the increasing risk of anemia.
The interference of lead in the development of RBCs results as the exposure to a very small amount of lead greatly changes the surface of the red blood cells. The permeability of water gets altered which results in shrinking and so they aren't capable of swelling up like other normal cells.
The hematologic system is involved with lead poisoning where one can find anemia as a result of it.
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The roots of many clover plants produce structures that are filled with bacteria. The clover plants provide food and shelter for bacteria, while the bacteria produce a nutrient that is used by plants. As a result, clover plants that have these structures on their roots grow at a faster rate and are healthier than clover plants that do not have structures.What type of relationship exists between the clover plants that have these structures on their roots and the bacteria in the structure?
The type of relationship that occurs between the clover plants and the bacterias is called mutualism.
What is Mutualism?Mutualism is an ecological relationship between individuals of different species, in which both are benefited by the interaction. As it occurs between individuals of different species, it is a so-called interspecific relationship, and, as it benefits all those involved, it is called a harmonic relationship.
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12. Do the optimal conditions for amylase function correspond with the usual conditions of the human body
Yes, the optimal conditions for amylase function correspond with the usual conditions of the human body.
Temperature and pH of amylase:The pH and temperature ranges for Amylase are 7 (neutral) and 37 °C, respectively. Our bodies include the enzyme AMYLASE, which aids in the body's ability to digest food. Saliva and the pancreas contain amylase. Glycogen, starch, and other related polysaccharides are hydrolyzed (broken down) into simpler, more useable forms of sugar by amylase.
Alpha-1,4-glucan 4-glucano-hydrolase, also known as purified human pancreatic alpha-amylase (EC 3.2.1.1), was discovered to be stable throughout a wide pH range (5.0 to 10.5), with 7.0 being the ideal pH for enzymatic activity. For soluble starch, the enzyme's Michaelis constant was discovered to be 2.51 mg per ml under the ideal pH and assay conditions. Sulfate and nitrate were not necessary for the enzyme to function; however, halide ions were.
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Increases partial thromboplastin time, but not prothrombin time?
a. enoxaparin
b. dabigatran
c. rivaroxaban
d. warfarin
Warfarin increases partial thromboplastin time, but not prothrombin time.
The answer is option D.
Warfarin, offered below the logo called Coumadin amongst others, is a medicinal drug that is used as an anticoagulant (blood thinner). it's miles normally used to prevent blood clots which include deep vein thrombosis and pulmonary embolism, and to save you stroke in humans who've atrial fibrillation, valvular heart ailment, or synthetic heart valves.
Much less generally it is used following ST-section elevation myocardial infarction (STEMI) and orthopedic surgical treatment. It's far typically taken by way of mouth, however, may also be used by injection into a vein.
The not unusual facet effect is bleeding. Much less commonplace side outcomes may also encompass areas of tissue harm and pink ft syndrome. Use is not advocated throughout being pregnant. It is encouraged that the effects of warfarin commonly be monitored by checking prothrombin time each one to four weeks.
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ntist is conducting an investigation that involves water, silver, carbon dioxide, and oxyg
group of statements best describe all of the materials he is using in the investigation?
ley are each compounds. Each of the compounds is made of atoms. All of the atoms an
ney are each made of matter. Some are compounds and some are elements. They all c
ney are all elements. Some contain molecules of the same type of atom. Some contain
hey are each made of matter. Some are compounds made of one type of element. Som
The correct option is (d)They are each made of matter. Some are compounds made of one type of element. Some are pure atoms.
Any substance with mass and volume is considered matter because it occupies space. Water is a substance that is created when Hydrogen and Oxygen are combined in a fixed ratio (2 H: O) with a chemical link. The elemental metal silver can be found in nature in its metallic form. Carbon is an element, and carbon dioxide as a compound is created when elements of carbon and oxygen are joined in a specific ratio to form the gas.
They are each made of matter. Some are compounds made of one type of element. Some are pure atoms.
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plan an investigation on how temperature affects seed germination.
Answer:
Moisture, hormone production, and enzyme activity. For seeds to germinate, they need to imbibe water. For this to occur, sufficient moisture must be present. A warmer climate may increase evaporation and decrease moisture, which would negatively affect germination.
In the United States today, life expectancy is: Group of answer choices the number of years that reflect competence in dealing with challenges. longer for men than for women. believed to be influenced by having an extra X chromosome 78.5 years overall
Believed to be influenced by having an extra X chromosome 78.5 years overall.
What is the life expectancy in the US 2020?Life expectancy at birth for the entire U.S. population was 77.8 years in the first half of 2020, down from 78.8 in 2019. (6). Male life expectancy at birth fell by 1.2 years from 76.3 years in 2019 to 75.1 years in the first half of 2020. Life expectancy in the United States decreased during 2020 as a result of the pandemic.
According to the researchers, the drop in U.S. life expectancy between 2019 and 2021 is the largest since 1943, which was the bloodiest year for Americans during World War II. The decrease in U.S. life expectancy was highly racialized, with Hispanic and Black populations experiencing the largest losses in life expectancy between 2019 and 2021.
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What property of carbon makes it able to form large macromolecules?
O Carbon can form five or more bonds with other carbon atoms in chains and rings.
O Carbon can form single, double, and triple bonds with other carbon atoms.
O Carbon can form three triple bonds, two double bonds, or one single bond with other carbon atoms.
O Carbon can form hydrogen bonds between molecules to make larger molecules.
B: Carbon can form single, double, and triple bonds with other carbon atoms.
Including the conversion of pyruvate to acetyl coA, how many NADH, FADH2, ATP, and GTP molecules are produced during the kreb’s cycle?
Similar to the conversion of pyruvate to acetyl-CoA, each pyruvate molecule loses a carbon atom with the release of carbon dioxide. During the decomposition of pyruvate, electrons move to NAD + to produce NADH. It is used by cells to produce ATP.
NADH: Three molecules are produced in the Kleb circuitFADH2: One molecule is produced in the Kleb circuitATP or GTP: From each molecule of pyruvate during the conversion of succinyl-CoA to succinic acid Two molecules of ATP are produced. The presence of the enzyme succinyl-CoA synthetase.Learn more about conversion of pyruvate here:https://brainly.com/question/4198225
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A farm field that has used only inorganic fertilizer for the past 20 years is most likely to have A farm field that has used only inorganic fertilizer for the past 20 years is most likely to have:____.
a. more soil organisms, more soil structure, and increased nutrient holding capacity. b. more soil organisms, less soil structure, and decreased nutrient holding capacity. c. fewer soil organisms, less soil structure, and decreased nutrient holding capacity. d. fewer soil organisms and less soil structure but increased nutrient holding capacity.
Answer:
Fewer soil organisms, less soil structure, and decreased nutrient holding capacity.
After the cerebellum receives proprioceptive information from muscles carrying out a voluntary movement, where does it send corrective feedback?
After the cerebellum receives proprioceptive information from muscles carrying out a voluntary movement, where does it send corrective feedback to primary motor cortex and cerebral nuclei.
The cerebellum, also known as the corticocerebellum, has a close connection to the regulation of movement timing, rate, range, length, direction, and strength. The cerebellum receives information from the command neurons and also obtains feedback (afferent) from the proprioceptive terminals of the muscles, tendons and joints regarding what the actual movements produce .
All these information are combined and the correction signals are given to the motor cortex. The motor nuclei of the cranial nerves and spinal cord exert the lowest level of motor control. Through the closed feedback loop, this occurs.
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Identify the process seen in the picture and write a short note on it.
The process seen in the image is hay harvesting, which is widely used as fodder.
What is hay for?Hay is a viable alternative to be used as fodder (for animals to feed in the troughs) if there is not enough pasture or the climate is unfavorable for grazing. It is also used for animals that must be kept in the stable or barn (eg when the females are pregnant).
With this information, we can conclude that Hay is a mixture of mown and dried plants that can be used as fodder.
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Why does the invasive brown treesnake have a negative effect on the biodiversity of guam?
If brown tree snake or Boiga irregularis was introduced to Guam it can caused the mass extinction of most of the island's native bird and native lizard species. with the decrease in native pollinators their will be a huge decline in plant species in guam.
The brown tree snake is considered as ecological threat on the island of Guam, where it has swallow up nearly all the native birds since its accidental introduction more than 70 years ago. These brown tree snake was introduced to Guam in the mid of 1940's and has caused the functional extinction of all native forest birds and lizard species. To save the Guam's remaining birds, researchers placed nests on top of smooth poles so that no snake could climb.
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What purpose does defining the area of investigation in excavation of skeletal remains serve?
The Forensic Biologist's primary job and responsibility is to provide information leading to the identity of the person, the cause of death, and the time since death.
purpose of defining the area of investigation in excavation of skeletal remains serve for :
Age Determination: It is possible to estimate a person's age based on their bones. If the entire skull is available, the scientist's task becomes easier because tooth eruption and fusion of skull sutures are important characteristics on which an opinion on the age can be given with a high degree of certainty.Determination of Cause and Manner of Death: In order to provide an opinion on the cause and manner of death, the forensic biologist closely examines each bone, its pieces, and fragments to look for signs of injuries that could have resulted in death. In many homicide cases, an examination of the skull reveals a variety of fracture patterns, including bullet holes, which helps to determine the cause of death.What is the importance of exhumation in criminal investigation?Exhumation is essential in criminal investigations. It aids in the identification of the perpetrators in many mysterious murder cases. To seal the skeletal remains in order to send them first for post-mortem examination and then to the Forensic Science Laboratory for additional examinations.
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Schleiden concluded all plants are made of cells and Schwann concluded the same thing about animals. Together, how did they contribute to cell theory?
They proved that cells are neither created nor destroyed.
They published several ideas on cell generation.
O They created the theories on the division of cells.
O They claimed that cells were the basic unit of all living organisms.
They created the theories on the division of cells.
What about cells in plant and animal?The smallest unit of life, cells serve as the foundation for all living things. Each part of a cell has a specific purpose. Both differences and similarities exist between plant and animal cells. The mitochondria, cell membrane, cytoplasm, and nucleus are all present in both plant and animal cells.The fundamental unit of life in species belonging to the kingdom Plantae is the cell. They are eukaryotic cells, which have specialized components called organelles and a real nucleus that performs several duties.Animal cells are typical eukaryotic cells since they have a membrane-bound nucleus and organelles and are encased in a plasma membrane.
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Answer:
D
Explanation:
I got it right on my quiz also if you look at what Schleiden and Schwann wrote they even said that “All living things are made up of one or more cells.” Which basically explains option D.
What are four possible phenotypes in this dihybrid punnett square?
People who are allergic to bee stings are actually having a response to the antibodies produced by their immune system when they are stung. This is called anaphylaxis. Most people who end up having a bee sting allergy did not have anaphylaxis the first time they were stung. It is only upon the second sting, or subsequent stings that they have an allergic response. Explain this phenomenon. a. After encountering the allergen, B cells create B-cell receptors on their surface that can bind to it more quicklly upon subsequent exposures to the allergen b. More antibodies (IgE binding to mast cells and resulting in their degranulation) on second exposure results in more infiammation causing anaphylaxis c. Less antibodies (IgE binding to mast cells and resulting in their degranulation) on second exposure results in less inflammation causing anaphylaxis d. The innate immune system uses its memory cells to produce more inflammation after the second bee sting resulting in anaphylaxis
The innate immune system uses its memory cells to produce more inflammation after the second bee sting resulting in anaphylaxis.
What are anaphylaxis and its effect on immunity?
For the majority of people, a bee sting only causes momentary pain and discomfort, but for those who are allergic to the venom, the results can be disastrous: they go into anaphylactic shock, which includes a drop in blood pressure, itchy hives, and breathing difficulties, and may even result in death if not treated right away. Subjects who are first exposed to a foreign substance, such as a disease or a poisonous chemical like venom, experience innate immune reactions.
Such innate immune responses don't need to be developed into antibodies or be immunized beforehand. As opposed to this, during an adaptive immune response, the immune system produces antibodies that identify the pathogen or toxin that is causing the infection; this process enables the development of vaccines to prevent infectious diseases. In most cases, adaptive immunity is a quicker, more focused, and more potent kind of defense than innate immunity.
So, the correct answer is option D.
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The correct option is (d) The innate immune system uses its memory cells to produce more inflammation after the second bee sting resulting in anaphylaxis.
Most people only experience brief pain and discomfort after being stung by a bee, but for those who are allergic to the venom, the consequences can be disastrous: they experience anaphylactic shock, which includes a drop in blood pressure, itchy hives, and breathing difficulties, and may even result in death if not treated right away.
Innate immune reactions happen when a subject is initially exposed to a foreign substance, such as a disease or a toxic chemical like venom.Such innate immune responses don't need to be primed or evolved into antibodies.
In contrast, during an adaptive immune response, the immune system creates antibodies that recognize the virus or toxin causing the infection; this process makes it possible to create vaccinations to fend off infectious diseases. Typically, adaptive immunity outperforms innate immunity in terms of speed, effectiveness, and focus.
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The capital city of arizona is phoenix. what kind of phrase are the bolded words? infinitive phrase noun phrase adjective phrase adverb phrase
The bolded word "of Arizona" is regarded as a noun phrase.
What is a noun phrase?A nouns phrase refers to a string of words that contain a noun but does not make a complete meaning. In this case, the noun is found to function in the sentence as a prepositional object.
We know that there are eight parts of speech in the English language and the noun is part of the eight parts of speech which add meaning to a sentence that we make.
Thus, the bolded word "of Arizona" is regarded as a noun phrase.
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You were hired by the South Carolina Department of Health and Environmental Control( DHEC) to pick the best location for a major South Carolina fishing tournament along one of its rivers. Since you cannot visit each of the locations In order to make your selection you request river quality data. Based on the data received, which river would you select to host the fishing tournament? In your response be sure to address dissolved oxygen, pH, specific conductance, temperature, and turbidity.
Grading Criteria:
Student identified the best river to hold the tournament. ( 1 point)
Student mentions dissolved oxygen in response. ( 1 point)
Student mentions ph in response. ( 1 point)
Student mentions specific conductance. ( 1 point)
Student mentions temperature. ( 1 point)
Student mentions turbidity in response. ( 1 point)
Some of the criteria that are important to select a good quality river for a fishing tournament are:
dissolved oxygen, pH, specific conductance, temperature, turbidity.The above factors are important because the amount of oxygen (dissolved oxygen) in a river has lower dissolved oxygen than fast running bodies of water and this would show the presence of fish.
What is Water Quality?This refers to the biological, chemical, and physical characteristics of a body of water that shows the condition of the water.
Hence, to ensure that a fishing competition is able to hold in a river based on the request by the South Carolina Department of Health and Environmental Control( DHEC), the above-listed factors should be of good quality so people can catch fish and keep the ecological balance.
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Two matching chromosomes having the same basic structure and same sequence of genes are called a ______ pair.
Two matching chromosomes having the same basic structure and same sequences of genes are called a Homologous chromosomes ,which is made by same pairs , centro-mere position, and staining pattern, for gene with same corresponding loci.
The same gene present at the same genes at the same loci positions .A homologous chromosomes are the set of one maternal and one paternal chromosome that pair up with each other during cell fertilization.
Its pair are similar to one another and have the same size and shape.Also they carry the same type of genetic information's. If four pair of chromosomes are present called a tetra or bivalent chromosomes.
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In the forest, you observe a monkey using its tail to hold its body as it moves through the trees. This monkey must be a
Cebus and the atelines are the groups of monkey that use its tail to hold its body as it moves through the trees.
Which type of monkey use its tail for movement?Two groups of monkey that use its tail to hold its body as it moves through the trees are the Cebus and the atelines. These monkeys have a long tail which is used as hand for movement.
So we can conclude that Cebus and the atelines are the groups of monkey that use its tail to hold its body as it moves through the trees.
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The land edge that is affected by marine processes is known generally as the?
The land edge that is affected by marine processes is known generally as the coast
A sea's shore is the area of land there. The coastline is the area of a shoreline where land and water converge. Coastlines are shaped in part by currents, tides, and waves. The ground is eroded or worn away when waves crash upon the shore.Despite making up only around 8% of the land on Earth, coastlines contain about 26% of all biological diversity. This wonderful environment, which is home to many different species of natural communities, is home to seabirds, clams, crabs, starfish, anemones, fish, kelp, and marine mammals, among many other creatures. Though it can also be a tough and challenging environment, since it is frequently altered by erosion and tides as well as pounded by waves and sea spray. Typically, there are three types of coasts: rocky, sandy, and muddy.
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What is sexual and asexual reproduction
Answer: asexual reproduction is when an organism can reproduce without the need of another unlike sexual reproduction
Explanation: sexual reproduction happens when two organisms reproduce together giving the offspring 50% of each organisms DNA--
asexual reproductions is more like the organism replicating itself because the offspring has 100% of its DNA making it the exact same
In sexual reproduction an organism that reproduces sexually incorporates the genetic material from both of its parents and is genetically distinct. Asexual reproduction creates genetically identical kids by having one parent replicate itself.
what is reproduction?The biological process of reproduction is how new individual organisms, or children, are created from their parents.
Reproduction Methods:
Animals can reproduce in two different ways;
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Insufficient iodine will result in the anterior pituitary producing an excess of ______. Multiple choice question.
Insufficient iodine will result in the anterior pituitary producing an excess of TSH (thyroid stimulating hormone).
Hyperthyroidism: Your thyroid gland will become overactive if a pituitary tumor (adenoma) results in the extremely unusual overproduction of thyroid stimulating hormone (TSH). Your metabolism, cardiac rhythm, and anxiety may all be affected by this disorder, often known as an overactive thyroid.Effect of an excess of thyroid hormone-
When your thyroid gland generates too much of the hormone thyroxine, you get hyperthyroidism (overactive thyroid). Your body's metabolism may speed up as a result of hyperthyroidism, resulting in unexpected weight loss and a swift or erratic heartbeat.What do T3 and T4 do?
T3 and T4 work together to regulate how your body uses energy. These hormones also play an important role in controlling your weight, body temperature, muscle strength, and nervous system.Learn more about TSH (thyroid stimulating hormone) brainly.com/question/15968236
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(a) Define a microscope.
(b) List three uses of a compound microscope.
(c) Tabulate 5 differences between optical microscope and electron
microscope
(a) Briefly account on how microscope was discovered.
(b) State two uses of magnifying lenses
(c) Distinguish between the types of magnifying lenses
Answer:
A microscope is an laboratory instruments that can be used to observe small objects,even cells.
The primary function of the nephron loop is to generate a medullary ecf osmotic gradient that allows for what?.
The primary function of the nephron loop is to generate a medullary ecf osmotic gradient that allows reabsorption of water and sodium chloride from the filtrate.
What is a nephron loop?
Nephron loop is also known as Henle loop. The descending limb and ascending limb of the nephron loop are U-shaped tubes with different permeabilities. Normally, the collecting duct and distal convoluted tubule are impervious to water, but hormone stimulation during homeostasis changes this.nephron is present in U-shape and extends through the medulla of the kidneyFunctions of nephron loop:
Its major function is to reabsorb sodium chloride and water from the filtrate. By conserving water, the organism can produce urine that is extremely concentrated.To learn more about nephron loop visit:
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The primary function of the nephron loop is to generate a medullary ecf osmotic gradient that allows reabsorption of water and sodium chloride from the filtrate.
What is a nephron loop?
Nephron loop is also known as Henle loop.
The descending limb and ascending limb of the nephron loop are U-shaped tubes with different permeabilities.
Normally, the collecting duct and distal convoluted tubule are impervious to water, but hormone stimulation during homeostasis changes this.
nephron is present in U-shape and extends through the medulla of the kidney
Functions of nephron loop:
Its major function is to reabsorb sodium chloride and water from the filtrate.
By conserving water, the organism can produce urine that is extremely concentrated.
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As they pass through small blood vessels, erythrocytes may pack together, single-file, like a roll of coins; this formation is called ______.
a rouleau (rouleaux)
What is a rouleau?
Red blood cells (RBCs) can stack up or aggregate into rouleaux (singular: rouleau), which are formed by the distinct discoid shape of vertebrate cells. The discoid RBCs' flat surface offers them a lot of surface area to cling to and make contact with, creating a rouleau. Because of them, the ESR (erythrocyte sedimentation rate) increases when the plasma protein concentration is high. This serves as an all-purpose indicator of sickness.
Infections, multiple myeloma, Waldenström's macroglobulinemia, inflammatory and connective tissue disorders, and malignancies are among the illnesses that can result in rouleaux production. As one of the causes of microvascular occlusion in diabetic retinopathy, it also occurs in diabetes mellitus.
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Children in northern regions experience months of inadequate sunlight exposure on the skin. to prevent possible abnormal bone development, what essential organic nutrient is necessary in the diet?
Children in northern regions experience months of inadequate sunlight exposure on the skin. to prevent possible abnormal bone development, cholecalciferol is an essential organic nutrient is necessary in the diet.
In some foods and as a dietary supplement, cholecalciferol, sometimes referred to as vitamin D3 and cholecalciferol, is a form of vitamin D that is produced by the skin when it is exposed to sunlight.People who reside in subpolar and polar regions need more vitamin D. Long winter nights cause less sun exposure, which explains why.Inuit bodies have adapted to the cold, a diet high in meat, and a low UVB environment where vitamin D production in the skin is difficult.The majority of people who live in northern latitudes require vitamin D during the winter to maintain adequate amounts of circulating 25(OH)D3 for maintaining good body function and preventing illnesses.learn more about cholecalciferol here: https://brainly.com/question/4551554
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4. Which of the following poses a major problem in understanding and fixing the issues with the San Joaquin Valley?
a. lack of scientific tools and data
b. lack of community support
c. lack of time from officials
A major problem to understand and correct the problems with the San Joaquin Valley lack of tools and scientific data on valley fever.
A. lack of scientific tools and dataWhat is valley fever?The small town of Avenal, in the San Joaquin Valley, is most affected by an incurable disease known as 'valley fever'. Cases of an incurable disease called "valley fever", are multiplying at an alarming and surprising rate in the southwestern United States.
With this information, we can conclude that San Joaquin Valley, is best known for an incurable disease known as 'valley fever', where there is no scientific data that can explain.
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Please help me with these questions!! I'll give crown when it will be available!!
The total weight of the space shuttle decreases in the first 20 seconds due to the rapid combustion of the fuel.
In the first 20 seconds;
The upward force on the shuttle is 27 million NewtonsTotal weight of shuttle and fuel is 16.5 million NewtonsThe resultant force on the shuttle = (27 - 16.5) million Newtons = 10.5 million NewtonsThe shuttle cannot take off before the first 10 seconds because the weight of the shuttle and fuel is far greater than the upward force on the shuttle.Why are the hydrogen and oxygen fuels of space shuttles in liquid form?The fuel used in space shuttles is liquid hydrogen and oxygen.
The fuels are in liquid form in order to slow the combustion rate as well as to reduce the volume occupied by the fuels.
Oxygen is needed in tanks of space shuttles because oxygen is not abundant in space.
The total weight of the space shuttle decreases in the first 20 seconds due to the rapid combustion of the fuel.
In the first 20 seconds;
The upward force on the shuttle is 27 million NewtonsTotal weight of shuttle and fuel is 16.5 million NewtonsThe resultant force on the shuttle = (27 - 16.5) million Newtons = 10.5 million NewtonsThe shuttle cannot take off before the first 10 seconds because the weight of the shuttle and fuel is far greater than the upward force on the shuttle.In conclusion, the combustion of the fuel of the shuttle produces the upward force to lift the shuttle.
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