The type of muscle tissue that contains striations when viewed through a microscope is skeletal muscle tissue.
Skeletal muscle tissue is the muscle tissue that is attached to bones and is responsible for voluntary movement. The striations that are visible in skeletal muscle tissue are due to the organized arrangement of the contractile proteins, actin, and myosin, within the muscle fibers.
These striations give skeletal muscle tissue its characteristic striped or striated appearance when viewed under a microscope. In contrast, smooth muscle tissue and cardiac muscle tissue do not typically exhibit striations when viewed through a microscope.
Skeletal muscle tissue is composed of long, cylindrical cells called muscle fibers. These fibers are multinucleated, meaning they contain multiple nuclei within each cell, and are surrounded by connective tissue that forms tendons, which attach the muscle to the bone.
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Which does not prevent entrance of foreign bodies into the respiratory system?A. Nasal hairsB. Twisted passagewaysC. SalivaD. MucusE. Lysozyme
The section of unfamiliar articles about the respiratory system is not stopped by saliva. the correct answer is (C) Saliva.
There is no Medulla Oblongata in the respiratory framework. The epiglottis (eh-pih-GLAH-tus), a little tissue fold, monitors the larynx. To prevent food particles from entering the lungs when we swallow, it epiglottis safeguards the larynx. The most effective way to get outside air into your lungs is through your nose or NASAL Depression. Some portions of the air-cleaning framework are the hairs that line the inside wall. On the off chance that you as often as possible inhale through your mouth or on the other hand on the off chance that your nasal sections are briefly obstructed, air can likewise enter through your ORAL Depression (mouth). The stomach-related framework is where the lumen should be, not the human respiratory framework.
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how do microbes maintain proper intracellular osmotic pressure
By manufacturing solutes that are consistent with their metabolism and growth, many microorganisms maintain a little higher solute concentration in their protoplasm, keeping their membrane pushed snugly against the cell wall.
From 5 minutes to 1(1/2) hours after the tissue has been removed from the body, the osmotic pressure maintained by liver or kidney tissue as determined by its water equilibrium with solutions of sodium chloride stays unaltered. At high osmotic pressure, solute accumulation strongly promotes bacterial growth, whereas solute release enables cells to withstand osmotic downshocks.
When meat is devoid of water and salt is added, a solute-rich environment is created that causes osmotic pressure to suck water from bacteria, slowing their growth. To accomplish this, salt content must be close to 20%.
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true or false Metamorphic rocks are a result of too much water quality
Answer: metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids
Explanation:
Which of the statements is a simplified equation for cellular respiration? a. glucose + oxygen ⟶ carbon dioxide + water b. lipid + water ⟶ fatty acids + carbon dioxide c. carbon dioxide + water + light ⟶ glucose + oxygen d. glucose + nitrogen ⟶ carbon monoxide + water
A. Sugar + Oxygen + Water + Carbon Dioxide. A metabolic process known as cellular respiration occurs in the mitochondria of an organism's cells when glucose (sugar) is broken down in the absence of oxygen to produce ATP, carbon dioxide, and water.
C6H12O6 + 6O2 6CO2 + 6H20 + power (Glucose + Oxygen produces Carbon Dioxide + Freshwater + Energy) is the equation of cellular respiration. You might have noticed that the formula for photosynthesis is the reverse of the equation of cellular respiration. a chemical reaction that converts carbohydrates into energy using oxygen (sugars). also known as oxidative metabolism, aerobic metabolism, and aerobic respiration. Aerobic respiration is described by the following word equation: sugar + oxygen --> liquid + dioxide ( co2 + power (in the form of ATP). There are about 36 ATP molecules created.
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The number of chromosomes in a haploid cell in humans are
A) 10; B) 23; C) 30; D) 46; E) 92
Answer:
B. 23
Explanation:
In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells
what is law of segregation definition biology?
Alleles, or variations, of genes exist. An organism's appearance is controlled by a dominant allele that conceals a recessive allele.
When an organism produces gametes, a single randomly chosen gene copy is given to each gamete. The law of segregation is what is known as this. The Principle of Segregation explains how reproductive cells are divided into pairs of gene variants. Gregor Mendel made the first observation of the segregation of alleles, or gene variants, and the traits they are associated with, in 1865. Each diploid individual contains two alleles (copies) for a certain trait, according to the law of segregation. A diploid organism results from each parent randomly passing an allele to their children.
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What are the 4 types of seizures?
There are four main types of seizures: generalized onset seizures, focal onset seizures, unknown onset seizures, and epileptic spasms.
Generalized onset seizures involve both sides of the brain and can cause loss of consciousness, convulsions, or muscle rigidity. These include absence seizures, myoclonic seizures, tonic-clonic seizures, and atonic seizures.
Focal onset seizures, also known as partial seizures, start in one area of the brain and can cause localized symptoms such as twitching, tingling, or changes in sensation, movement, or behavior.
Unknown onset seizures involve electrical discharges in the brain that cannot be classified as either focal or generalized because there is not enough information available.
The type of seizure a person experiences can help determine the underlying cause of the seizures and inform the best treatment approach. It is important to consult a medical professional for proper diagnosis and treatment.
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Consider a diploid cell that contains genes Y, R, and Z on separate chromosomes. If this cell undergoes meiosis, what is a possible genotype of a daughter cell if the parent cell had the genotype YyRRZz?
Answer:
YYRrZz
Explanation:
the. daughter contains all the genes
WILL GIVE BRAINLY
the potsdam sandstone is of cambrian age. what must be the age of the gneiss
Answer:
Paleoproterozoic age
Explanation:
What mechanisms can account for Earth’s increasing temperature?
The mechanisms that can account for Earth’s increasing temperature are:
Greenhouse gasesLand use changesAerosolsSolar radiation. The mechanisms that can account for Earth’s increasing temperature are:The Earth's temperature has been increasing over the past century, and the scientific consensus is that this is largely due to human activities. Here are some of the key mechanisms that contribute to this warming:
Greenhouse gases: The Earth's atmosphere contains several gases, including carbon dioxide (CO2), methane (CH4), and water vapor, that trap heat and help regulate the planet's temperature. However, human activities such as burning fossil fuels, deforestation, and agriculture have led to an increase in greenhouse gas concentrations, particularly CO2. This enhanced greenhouse effect is causing the Earth to warm.Land use changes: Human activities such as deforestation, urbanization, and agriculture can change the reflectivity of the Earth's surface (called the albedo), which in turn affects how much heat is absorbed by the planet. For example, dark, paved surfaces in urban areas absorb more heat than light-colored forests or grasslands.Aerosols: Tiny particles in the atmosphere called aerosols can have a cooling effect on the planet by reflecting sunlight back into space. However, some human activities, such as burning fossil fuels and biomass, can also release aerosols that contribute to warming.Solar radiation: Variations in the amount of energy from the sun that reaches the Earth can also affect the planet's temperature. However, changes in solar radiation cannot explain the observed warming over the past century, as the amount of incoming solar energy has remained relatively constant.Note: The main driver of the current warming trend is the increase in greenhouse gas concentrations, primarily from human activities.
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what areas of grass grow in shallow water; see salt marsh community
what is it called...
The area of grasses growing in shallow water is known as a salt marsh community.
Salt marshes are coastal wetlands that are flooded and drained by tides. They are typically composed of deep mud and peat, and are home to a variety of marine animals, plants, and microorganisms. These communities provide important ecosystem services, such as filtration of pollutants, shoreline protection, and habitat for a variety of species.
A salt marsh community is a type of coastal wetland that is flooded and drained by tides. These communities are typically composed of deep mud and peat, and are home to a variety of marine animals, plants, and microorganisms. Salt marshes provide important ecosystem services, such as filtration of pollutants, shoreline protection, and habitat for a variety of species. They are also important for coastal stability, as the marsh plants can trap sediment and help to dissipate wave energy. Salt marshes also provide food for a variety of wildlife, and can be important habitats for fish and birds.
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in clotting, prothrombin activator catalyzes prothrombin into thrombin, which in turn converts fibrinogen into fibrin.truefalse
That statement is true. Prothrombin activator catalyzes prothrombin into thrombin, which then converts fibrinogen into fibrin to form a blood clot.
What is prothrombin?Prothrombin is a protein that plays a crucial role in blood clotting, also known as coagulation. It is produced in the liver and released into the bloodstream in an inactive form. When an injury occurs and blood vessels are damaged, a series of chemical reactions occur that lead to the activation of prothrombin. This process involves the formation of an enzyme complex called prothrombin activator, which cleaves prothrombin to produce the active enzyme thrombin.
The process of blood clotting involves a series of steps, one of which is the conversion of prothrombin into thrombin. Prothrombin is an inactive precursor protein that is activated by an enzyme complex called prothrombin activator. Once prothrombin is activated, it catalyzes the conversion of fibrinogen into fibrin, which is the main component of blood clots.
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what happens if there are errors in the process of protein synthesis?
If there are errors in the process of protein synthesis, the proteins produced may not be functional and may not be able to perform their intended role in the cell.
This can lead to a variety of problems, such as metabolic dysfunction, cellular stress, or even cell death. In some cases, the errors may even be passed on to future generations of cells, leading to long-term problems.Protein synthesis is the process by which cells make proteins. Transcription and translation take place simultaneously. During transcription, the information stored in DNA is copied into a molecule called messenger RNA (mRNA). During translation, the information in the mRNA is used to assemble amino acids into proteins. Protein synthesis is essential for cells to grow and divide, and for the body to produce the proteins it needs.
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How are humans affected by biomagnification? Use evidence from this activity to explain why this is a concern.
are each of the 6 classes of nutrients needed in equal quantities?
We require a balanced diet, which implies that each of the six nutrients—vitamins, minerals, carbohydrates, fats, proteins, and water—must be present in equal amounts in our food.
Vitamins, minerals, protein, lipids, water, and carbs are the six basic nutrients. For proper body operation, people must ingest these elements through food sources. A person's growth, health, and ability to reproduce depend on essential nutrients.
1) Vitamins - A person can obtain all the vitamins they require from food if they consume a diet high in fruits, vegetables, and lean proteins. To prevent or lessen a deficiency, those who consume less fruits and vegetables and those with digestive issues may need to take a vitamin supplement.
2) Minerals - The second class of micronutrients is minerals. A number of
2) Minerals - The second class of micronutrients is minerals. Major and trace minerals are divided into two categories. For optimum health, the body need a balance of minerals from both categories.
3) Proteins - A macronutrient essential for the efficient operation of all body cells is protein.
When necessary, proteins serve as a fuel source for cells and tissues, assuring the growth and development of muscles, bones, hair, and skin as well as the production of antibodies, hormones, and other vital compounds.
4) Fats Foods with a lot of fat are frequently linked to poor health. Nonetheless, certain fats are necessary for a person to maintain maximum health.
The body needs fats for a variety of processes and for energy. Yet, it is crucial to eat. Limit or avoid saturated and trans fats and opt for monounsaturated and polyunsaturated fats instead.
5) Sugary substances
The body needs carbohydrates to function. These are sugars or carbohydrates that provide our bodies the energy they require when they do.
6) Water - Water is a necessity for all living things to survive.
We require water to prepare food, drink, bathe, and other things.
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in the 1940's, scientists had concluded that the genetic material was most likely either ___ or ____a. Protein or DNAb. Protein or RNA
Answer:
X or Y
Explanation:
they are made up of genetic materials
Why is the classification of organisms important?
Answer:
provides useful information about its evolutionary history and which other organisms are related to it.
Explanation:
Organisms are usually grouped together based on their unique characteristics. The classification of an organism often provides useful information about its evolutionary history and which other organisms are related to it.
What is believed to be true of levels of analysis according to probabilistic epigenesis?a. Genetics can influence biology and psychology, but biology and psychology cannot influence genetics.b. Biology and psychology can influence genetics, but genetics cannot influence biology and psychology.c. Genetics can influence biology and psychology and biology and psychology can influence genetics.d. Genetics can influence biology but not psychology.
The correct answer is option C, "Genetics can influence biology and psychology and biology and psychology can influence genetics."
According to probabilistic epigenesis, the development of an organism is influenced by a complex interplay between genetic and environmental factors, and it is believed that genetics can influence biology and psychology, while biology and psychology can also influence genetics. Therefore, the correct answer is option C, "Genetics can influence biology and psychology and biology and psychology can influence genetics."
Probabilistic epigenesis emphasizes the idea that development is a probabilistic process, in which genes and environment interact in complex ways to produce a particular outcome. This means that genetic factors can set the stage for certain biological and psychological processes, but these processes can also be influenced by environmental factors, such as nutrition, stress, and social interactions.
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Answer:
The correct answer is option C
Explanation:
I got it right
Scientists unearth a Wooly Mammoth from the Siberian Ice Sheath and discover that a eukaryotic "amoeba-like cell is still alive. Which component of the cell membrane might contribute to maintaining the fluidity of plasma membranes under freezing conditions? a) high levels of unsaturated phospholipid tails within the lipid bilayer b) high levels of long phospholipid tails within the lipid bilayer c) high levels of saturated phospholipid tails within the lipid bilayer d) peripheral proteins e) absence of cholesterol
At low temperatures, be that as it may, cholesterol makes the errant contrast: By slowing down contacts between unsaturated fat chains, cholesterol keeps layers from freezing and holds up with film smoothness. The correct answer is (A).
At low temperatures, be that as it may, cholesterol makes the contrary difference: By slowing down collaborations between unsaturated fat chains, cholesterol keeps layers from freezing and keeps up with film smoothness.
The cholesterol particles are haphazardly appropriated across the phospholipid bilayer, helping the bilayer stay liquid in various ecological circumstances.
cholesterol particles - cholesterol influences layer smoothness, however, its impact relies upon the temperature. The encompassing temperature - higher temperatures will more often than not increment layer smoothness.
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Tue/False? over 95% of organisms are vertebrates found phylum chordata.
Answer:
True!
Explanation:
Invertebrates make up at least 95 percent of all animal species. Vertebrates are animals that have a backbone. All vertebrates belong to the phylum Chordata. They include fish, amphibians, reptiles, birds, and mammals.
Hope this helps. Not sure if you were taking about animals.
Which of the following events would best be described as a case of sympatric speciation?
a. An individual plant undergoes meiotic failure, producing diploid pollen and ovules; these self-fertilize, germinate, and grow into several fully fertile tetraploid plants.
b. A population of lizards is subdivided by a natural barrier and subsequently diverges to form two species that cannot interbreed.
c. A new, isolated population of fruit flies is founded by a small group of colonists, who then diverge from the ancestral source population.
d. Speciation cannot take place in sympatry, only in allopatry, where geography poses a barrier to gene flow.
Option A: An individual plant undergoes meiotic failure, producing diploid pollen and ovules; these self-fertilize, germinate, and grow into several fully fertile tetraploid plants, is best described as a case of sympatric speciation.
The most frequent way for this speciation occurrence to happen is by polyploidy, in which a child or group of children will be born with twice as many chromosomes as is typical. These offspring may have four copies of each chromosome (polyploidy), whereas a typical person has two copies of each chromosome (tetraploidy). Reproductive isolation results from a tetraploid's inability to mate with a diploid.
Sympatric speciation is a type of speciation that takes place when two populations of the same species coexist in the same geographical area but develop in distinct ways to the point where they can no longer interbreed and are thus classified as separate species.
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Which of these is the double membrane that encloses the nucleus?A. This is the nuclear envelope.B. The nucleus contains most of a cell's DNA.C. The Golgi apparatus modifies, stores, and packages products of the ER.D. Microfilaments are a component of the cytoskeleton.
Answer:
A. Envelope
e.......................
which gland plays an important part in regulating the body's metabolism?
The thyroid gland is an important gland of the body which regulates the metabolism of the body.
The thyroid is basically a small, butterfly-shaped gland which is found to be located at the front of our neck right under your skin. Its a crucial part of our endocrine system and is responsible for controlling a number of our body’s important functions which it does by producing as well as releasing certain hormones.
The thyroid’s main function is to be able to control the rate of our metabolism, which is basically the process of how our body happens to transform the food we consume into energy which is required by all the cells in our body.
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rem sleep deprivation generally causes what kinds of side effects? group of answer choices. A. Intense,prolonged periods of stage 3 and 4 sleep. B. Interfence wwith memory tasks. C. Decreased sleep onset episodes. D. Sleep apnea and night terrors. E. Heightened manifest dream conten
Intense, Prolonged periods of stage 3 and 4 sleep: REM sleep deprivation can lead to an increase in deep sleep, also known as stage 3 and 4 sleep, which are usually followed by lighter sleep stages.
A. This can cause longer and more intense periods of deep sleep, and can lead to a feeling of tiredness during the day.
B. Interference with memory tasks: REM sleep deprivation has been linked to impairments in memory formation and recall. Studies have found that REM sleep deprivation impairs the ability to remember information, and can lead to difficulty concentrating and completing tasks.
C. Decreased sleep onset episodes: REM sleep deprivation can lead to a prolonged sleep latency period, which is the amount of time it takes to fall asleep. This can lead to decreased sleep onset episodes and an increased difficulty in getting a good night’s sleep.
D. Sleep apnea and night terrors: REM sleep deprivation can increase the risk of developing sleep apnea and night terrors, which can cause extreme fatigue, irritability, and mood swings.
E. Heightened manifest dream content: REM sleep deprivation can increase the amount of manifest dream content, which are dreams that are remembered when one wakes up.
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what is the part of a cell that controls cell function.
Answer: The nucleus
Explanation: The nucleus is like the remote control center of the cell. It acts as the cell's brain by telling it what to do, how to grow, and when to reproduce. The nucleus is home to the cell's genes. A membrane, a thin layer that allows chemicals to pass in and out to the rest of the cell, surrounds the nucleus.
What word describes a trait that helps an organism survive in its environment?
answer choices
natural selection
mutation
camouflage
adaptation
Word describes a trait that helps an organism survive in its environment is D. Adaptation.
In general , Adaptations of certain characteristics and traits help an organism to survive and reproduce in its environment. Adaptations can in various forms it may be behavioral, physiological, or structural.
They get originated from the process of natural selection, that is mechanism that help organisms to better adapted in their environment and survive, reproduce easily than those who are less adapted. On the other hand mutation is a genetic change . Camouflage is known as the behavioral adaptation .
Hence, D is the correct option
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Which description applies to post-translational gene regulation? a) a gene cluster controlled by a single promoter that transcribes to a single mRNA strand b) protein modifications such as addition of a functional group, or structural changes such as folding c) processing of exons in mRNA that results in a single gene coding for multiple proteins d) mRNA modifications such as additions of a 5' cap and 3' poly-A tail and removal of introns e) heritable changes in gene expression that occur without altering the DNA sequence
Post-translational gene regulation means protein modifications such as addition of a functional group, or structural changes such as folding. The correct option is Option B.
Post translational gene regulation refers to the control of genes for the expression of protein synthesis at various levels. It may either be reversible events such as post translational modification or may be irreversible events such as proteolysis. These regulations are generally reversible,such as one enzyme adds the modifying group while the another enzyme can remove it. For example, phosphorylation of proteins by enzymes are done by enzymes known as protein kinases, while protein phosphatases remove such phosphate groups. Several other post-transcriptional regulatory mechanisms are known to dictate biofilm development and assembly and these include RNA-binding proteins, small non-coding RNAs, toxin-antitoxin systems, riboswitches, and RNases.
Post-translational modifications (PTMs) such as glycosylation and phosphorylation help in the function of haemostatic proteins and help in curing various diseases. Such secondary level changes to haemostatic proteins have wide ranging effects on their ability to interact with other proteins.
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The α-helix and the β-pleated sheet are part of which protein structure?a. primaryb. secondaryc. tertiaryd. quaternary
The α-helix and the β-pleated sheet are part of the secondary protein structure.
what are the types of protein structure ?There are four levels of protein structure:
Primary structure: The linear sequence of amino acids that make up the protein chain.Secondary structure: The local three-dimensional structure that forms as a result of hydrogen bonding between amino acids. The most common types are alpha-helices and beta-sheets.Tertiary structure: The overall three-dimensional structure of the protein, which is determined by interactions between amino acid side chains.Quaternary structure: The arrangement of multiple protein subunits (polypeptide chains) into a larger, functional protein complex.To learn more about protein structure follow the given link: https://brainly.com/question/30093933
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a heart-shaped curve traced around a point on the circumference of a circle rolling completely around an equal fixed circle is called
The heart-shaped curve traced around a point on the circumference of a circle rolling completely around an equal fixed circle is called a "cardioid".
The term "cardioid" comes from the Greek word "kardia", meaning heart, and "eidos", meaning form or shape. The cardioid is a type of mathematical curve known as a "lemniscate of Bernoulli", which is a figure-eight-shaped curve formed by the intersection of two circles. The cardioid is a common shape in mathematics, and has applications in fields such as physics, engineering, and computer graphics. It is also a popular shape in art and design, and can be found in many decorative objects, such as jewelry and ornaments.The cardioid is a curve that is formed by tracing a point on the circumference of a circle as it rolls around another circle of the same size. The resulting curve is shaped like a heart, with a cusp at the top and a rounded bottom. The curve is called a "cardioid" because of its resemblance to the shape of a heart.The cardioid is a type of lemniscate, which is a figure-eight-shaped curve formed by the intersection of two circles. In the case of the cardioid, one of the circles is fixed in place, while the other rolls around it. As the rolling circle rotates, the point on its circumference traces out the cardioid curve.The cardioid is a common shape in mathematics, and has many interesting properties. For example, the area of the cardioid is three times the area of the circle it is based on, and the length of the curve is four times the radius of the circle. The cardioid also has applications in physics, engineering, and computer graphics.In physics, the cardioid shape can be used to describe the motion of a particle under the influence of a central force, such as gravity or electromagnetism. The cardioid shape is also used in the design of antennas and reflectors, which can focus or direct electromagnetic waves.
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Which of the following show convection as the way to transfer heat. (There is more that one answer)
a wave hitting the shore
touching a hot stove
the asthenosphere
water that is boiling
In convection, heat transfer occurs due to the movement of gas and liquid molecules. Here the heat transfer is because of convection in all the given cases.
How can sunlight detect heat transfer by radiation?Flow is a term that refers to the movement of heated water or air. Heat is transferred by electromagnetic waves or radiation. The electromagnetic waves that travel from the sun to the earth radiate mostly infrared light (not so much visible light), and they warm your body when you're near the sun.
Why is convection used as an example when boiling water?Heat transfer from the convection burner causes the water heated at the bottom of the pot to boil. Hot water rises and is fed by cold water, creating a circular motion.
How does conduction carry heat?Heat conduction occurs when two objects with different surface temperatures come into contact. At the point of contact, energy is transferred directly from the material of the warmer component to the material of the cooler component. Conduction is the method of heat transfer and an example of this is the metal pot used to boil water on a stove.
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Combining a hot surface and boiling water will cause convection to transfer heat. The transfer of energy between two bodies through currents of flowing gas or fluid is known as convective heat transfer.
Why is convection used as a boiling water example?The water heated just at bottom of the pot boils as a result of heat transfer from of the convection burner. A circular motion is created when hot water rises and therefore is fed by cold water.
How does heat move through conduction?When two particles with various surface temperatures are in touch, heat conduction happens. Energy is transmitted directly from the warmer component's material to the cooler component's material just at point of contact.
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