There are three introns A molecule of pre-mRNA in a eukaryotic cell has four exons and three introns.
The number and size of introns differ widely. The mammalian DHFR gene comprises 6 exons totaling around 2000 nucleotides, yet the gene is 31,000 bases long. Similarly, alpha-collagen contains 50 exons ranging from 45-249 bases, and the gene is approximately 40,000 bases long.
Exons and introns are present in the earliest messenger RNA products when genes are transcribed. However, introns are deleted during the splicing process, leaving just exons in the final mRNA and utilized to determine which proteins are generated.
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What are 4 sister chromatids called?
Answer:
The answer to this might be tetrad.
Explanation:
The _____ of the respiratory system consists of a series of interconnecting cavities and tubes both outside and within the lungs that filter, warm, and moisten air and conduct air into the lungs.
The conducting zone of the respiratory system is a series of interconnected cavities and tubes outside and inside the lungs that filter, warm, humidify, and direct air to the lungs.
The respiratory system functionally he can be divided into two zones. The conducting zone (nose to bronchioles) provides the conduction pathway for inspired gases and the respiratory zone (alveolar ducts to alveoli) where gas exchange takes place.
The conducting zone consists of all structures that allow airways to enter and exit the lungs.
Nasal cavity, pharynx, trachea, bronchi, and most bronchioli. The conducting zone, which includes everything from the nose to the smallest bronchiole, allows air to enter and exit the lungs. The respiratory zone includes respiratory bronchioles and alveoli, which move breathing gases, oxygen and carbon dioxide, into and out of the blood.
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Where does the light reaction occur in plants?
The light reactions of plants are the photochemical reactions that take place in the thylakoid membrane of chloroplasts and convert light energy into chemical energy in the form of ATP and NADPH.
Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts. The light processes are mostly controlled by photosystems, sizable complexes of proteins and pigments (light-absorbing molecules) that are designed to capture light. The light reactions processes include the plants division of water into oxygen, protons, and electrons, and take place in the chloroplast thylakoid membrane. The light reactions occur in the chloroplast thylakoid membrane and involve the splitting of water into oxygen, plants,protons and electrons.
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Is the claim, "Despite not being a plant, you get your energy from the sun." accurate?
Write a paragraph explaining your reasoning.
Answer:
Yes (kind of), because even though we do not use the sun as directly as say plants, we still rely on the sun on a daily basis, however we don't necessarily get our energy from it, like plants do.
The sun produces light as well as heat, also known as solar energy. This makes it possible for life to exist on Earth, and we can use solar energy to power a wide variety of useful things, however sun/solar energy is not the only way to get electricity.
As we know, plants need sunlight to grow, although humans don't grow by being exposed to sunlight, sunlight helps grow plants which animals, including humans, need for food as well as oxygen they produce.
Most livestock we eat, cows for example, need plants to survive and many people eat meat, and even if you don't you'd eat plants which, once again, need sunlight to grow. Also, without heat from the sun, Earth would freeze.
OVERALL...
It's kind of like a chain, we get our energy from things that get their energy directly from sunlight. A short answer would be yes, but it's not quite as simple as that.
I hope this helps, hopefully you can use it to formulate an answer of some sort.
Which two of these statements are true about mammals?
Answer:
Give me the options in the comment section and I'll edit this answer with the correct two answers.
What happens to the molecules of a compound when it changes from a liquid to a solid?
When the compound changes from a liquid to a solid, the molecules lose their energy, they slow down and thus come together and closer.
Solid is one of the states of matter where the molecules or atoms of a compound stay close together in contact with each other and are not able to perform any movement. The kinetic energy of these molecules is very less and such compounds have a structural integrity.
Energy is defined as the capacity to do work or supply heat to any body. In any compound, the energy is stores in its chemical bonds. The transition of molecules from a less ordered state to a more ordered state results in the release of energy from the compound.
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Suppose that you ate a chicken sandwich on a wheat roll with lettuce, tomatoes, and onions for lunch. As you ate, you took in food molecules from both plants and animals. Explain why all the energy in the food molecules of this sandwich could be traced back to the sun.
Food provides the body with energy-rich substances such as glucose. When these molecules reach the body's cells, they are broken down in a series of processes to reform carbon dioxide and water, providing energy for the body to use.
The energy in meals is converted into energy that the body's cells may utilise through the process of cellular respiration. The sugars in your meals are initially processed into the simple sugar glucose, a monosaccharide. Remember that glucose is the sugar that the plant produces during photosynthesis.
All of the energy present in food molecules that humans consume may be traced back to the Sun's energy. This is because all food comes from primary producers, who manufacture food via the process of photosynthesis. Photosynthesis is the process through which plants make food.
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Which type of granular leukocyte can engulf up to two dozen bacteria and also produces a respiratory burst that creates harsh chemical agents such as hydrogen peroxide
The type of granular leukocyte that can engulf up to two dozen bacteria and also produces a respiratory burst that creates harsh chemical agents such as hydrogen peroxide is Neutrophil.
Neutrophil:
A type of white blood cell that is an important part of the immune system and helps the body fight infection. Neutrophils are one of the first immune cells to respond when microorganisms such as bacteria and viruses enter the body. The most common type of white blood cell. Neutrophils make up 50% to 75% of all circulating leukocytes in the blood. Neutrophils, along with eosinophils and basophils, form a group of white blood cells known as granulocytes.
High neutrophil counts can be caused by many physiological conditions and diseases. This high neutrophil count is called neutrophilia.
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Read the paragraph from the section "A Library Of Life."
Sadye Paez is a leader on the project. Mapping the genome of tens of thousands of animals
could easily take 10 years, she said. Even so, giving scientists this kind of information could help
to save rare animals. It would give conservationists and biologists a new set of tools, she said.
How is Harris Lewin MOST likely to respond to this paragraph?
(A)
(B)
(C)
(D)
He would disagree that the project could take up to 10 years.
He would disagree that the project will help protect endangered animals.
He would agree that the project is worthwhile despite how long it will take to finish.
He would agree that the project will take too long to save many species.
'He would agree that the project is worthwhile despite how long it will take to finish' is Harris Lewin's most likely response to this paragraph.
What is a genome?
A genome is an organism's complete set of genetic material. It is made up of DNA and contains the instructions for an organism's growth, development, functioning, and reproduction. In humans, the genome consists of 23 pairs of chromosomes, containing a total of 3 billion base pairs of DNA.
He would agree because the information it provides is invaluable. Knowing the genome of tens of thousands of animals could help to save rare animals and give conservationists and biologists a new set of tools to work with. The potential benefit of this project makes it worth the effort and time it will take to complete.
Hence, Option C is correct.
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Write a claim evidence and reasoning on Do trees change the composition of the atmosphere around us?
Answer:
Evidence: Trees absorb carbon dioxide from the atmosphere during the process of photosynthesis, and release oxygen as a byproduct. In this way, trees play a vital role in the global carbon cycle, and can help to mitigate the negative impacts of human activities that contribute to the increase of atmospheric carbon dioxide, such as the burning of fossil fuels.
Reasoning: The evidence provided demonstrates that trees have a direct effect on the composition of the atmosphere through their role in the carbon cycle. By absorbing carbon dioxide and releasing oxygen, trees can help to balance the levels of these gases in the atmosphere, and contribute to the overall health of the planet. The fact that trees have this ability suggests that they have the power to change the composition of the atmosphere around us.
How is ATP formed from electron?
ATP is formed from electrons through the process of oxidative phosphorylation.
Oxidative phosphorylation is the process by which the energy released from the oxidation of nutrients is used to produce ATP. The process occurs in the mitochondria, where electrons from the breakdown of glucose are passed through a series of protein complexes in the inner mitochondrial membrane, called the electron transport chain. As the electrons pass through these complexes, they lose energy, which is used to pump protons across the inner mitochondrial membrane, creating a proton gradient. The energy from this gradient is then used by ATP synthase, an enzyme located in the inner mitochondrial membrane, to add a phosphate group to ADP (adenosine diphosphate), forming ATP. In this way, the energy from the oxidation of glucose is harnessed to produce ATP, the energy currency of the cell.
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The following metabolic pathway involves the action of many enzymes within a cell.
Substrate 1 --> Substrate 2 --> Substrate 3 --> Product
Explain what would happen to the amount of product produced if the enzyme that acts on substrate 2 was not produced in the cell. All other enzymes at each step of the pathway are present.
Answer:
The metabolic pathway you described involves a series of chemical reactions that convert one substrate into the next substrate until the final product is formed. If the enzyme that acts on substrate 2 is not produced within the cell, the reaction that converts substrate 1 into substrate 2 would not occur. This would cause a block in the pathway, as substrate 2 would not be available for the enzyme that converts substrate 2 into substrate 3.
Explanation:
The metabolic pathway you described involves a series of chemical reactions that convert one substrate into the next substrate until the final product is formed. If the enzyme that acts on substrate 2 is not produced within the cell, the reaction that converts substrate 1 into substrate 2 would not occur. This would cause a block in the pathway, as substrate 2 would not be available for the enzyme that converts substrate 2 into substrate 3.
As a result, the amount of product produced would be severely decreased. Because of the missing enzyme, substrate 2 would not be converted into substrate 3, and subsequently, substrate 3 would not be converted into the final product. If this key enzyme is not present, the entire metabolic pathway would be halted at the step involving substrate 2, causing the cells to be unable to produce the final product and creating a bottleneck in the metabolic pathway.
It's important to remember that enzymes are catalysts, they speed up the reactions of the metabolic pathway and ensure the reactions occur at appropriate rates to support life, even a small change in the enzyme activity can affect the entire pathway and alter the final product quantity and quality.
Claim 1: The sediment that formed the Great Plains came from the rock of the Rocky Mountains. Claim 2: The magma that formed the Rocky Mountains came from the rock of the Great Plains. Which claim is wrong Give evidence to refute/disprove the other claim
Claim 1: The debris that shaped the Great Plains originated from the igneous material of the Rocky Mountains. (correct)
Claim 2: The magma that produced the Rocky Mountains originated from the Great Plains' rocks. (incorrect)
Great Plains vs Rocky MountainsThe Great Plains were formed by sediment from the Rocky Mountains being transported and deposited by rivers and other geological processes. The sedimentary rock that makes up the Great Plains includes materials such as sand, silt, and clay that were worn down from the uplifted Rocky Mountains and carried eastward by streams and rivers.
The Rocky Mountains were formed by tectonic activity that caused the Earth's crust to uplift and create the mountain range. The mountains are primarily composed of igneous and metamorphic rock that formed deep within the Earth's crust, rather than from the sedimentary rock of the Great Plains.
There is no evidence that supports claim 2, the magma that formed the Rocky Mountains did not come from the rock of the Great Plains. The magma that formed the Rocky Mountains came from the Earth's mantle, which is beneath the crust and is composed of mostly solid rock. The Great Plains being sedimentary rock, formed from erosion and weathering of pre-existing rock.
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How fast do you administer IV epinephrine in NRP?
It takes as fast as 45–60 seconds to provide the first dose of epinephrine with invasive neonatal resuscitation techniques like intubation or venous access. If the heart rate doesn't rise above 60 beats per minute after the initial dose, epinephrine can be given every 3 to 5 minutes.
Systematic evaluation of human infant and pertinent animal research comparing various epinephrine dosages, delivery methods, and delivery intervals in neonatal resuscitation to the (currently advised) intravenous (IV) administration of doses of 0.01 to 0.03 mg/kg given every 3 to 5 minutes. After being administered, epinephrine immediately starts to work. However, it can take 5–10 minutes for it to take full action.
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Why is a male progeny with a calico coat so rare?
For a male cat to have the calico pattern, the cat must have three sex chromosomes. Two X's and one Y's. This phenomenon can occur in both humans and animals, and in both cases is known as Klinefelter's syndrome.
The calico fur pattern is predominantly white, with other her two colored spots. Also, since a cat's coat color is linked to her X chromosome in her cells, calico cats rarely become male. Male cells acquire only one X chromosome. That is, males usually only have one color. Out of 3,000 calico cats born, only one is male. These cats are so rare that they are often referred to as feline "unicorns."
There is no locus for orange on the Y chromosome, so a normal XY male of his cannot have both orange and non-orange genes, usually resulting in tortoiseshell or calico .
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What are Mendel's 4 hypotheses and what does each mean?
(1) Principle of Paired Factors is the first of Mendel's four postulates and principles of heredity. (2) The Law of Segregation or Law of the Purity of Gametes (Mendel's First Law of Inheritance), (3) The Dominance Principle, and (4) The Law of Independent Assortment
In his law of segregation, he put forth the concept of paired components being separated during the creation of gametes. According to Mendelian law, every pair of unit components would separately assort into brand-new gametes.
Only one version of a trait will emerge in the offspring of two parents who have different, opposing characteristics, according to Mendel's law of dominance. The dominant trait will be the only phenotypic trait that the hybrid offspring exhibits. The dominance law is the fundamental rule of inheritance.
Because a gamete only contains one of the two alleles dominant or recessive and not both, the law of segregation is also known as the law of pure gametes.
The development of reproductive cells causes various genes to separately separate from one another, according to the Principle of Independent Assortment. During his research on the genetics of pea plants in 1865, Gregor Mendel made the first observation of an independent assortment of genes and their related phenotypes.
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Please place answers under questions so I know which is which. Thank you! :)
What products are made in light-dependent reactions (photosynthesis)?
What products are made in light-independent reactions (photosynthesis)?
Products: ADP, ATP, NADPH, NADP+, Oxygen, Sugars
The products of the light-dependent reactions are= ATP, NADPH, and O2, and the products of light-independent reactions are= Sugars, ADP, and NADP+.
Photosynthesis has two parts: one is light-dependent and another one is a light-independent reaction (also known as-Calvin cycle). The process is vice versa, where few inputs of the light-dependent reaction are used to make the outputs for the light-independent reaction, and few inputs of the light-independent reaction are used to make the outputs for the light-dependent reaction.
The goal of a light-dependent reaction is to convert light energy into chemical energy. And the location of light-independent reaction is at Chloroplasts—stroma.
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3. Gwen has blue eyes. She got one allele from her blue-eyed mother and another allele from her brown-eyed father. What is Gwen's phenotype?
brown eyes
blue eyes
green eyes
blue and brown eyes
Answer: Her phenotype is Option 2: Blue Eyes.
Dictionary Definition of Phenotype: The set of observable characteristics or traits of an organism.
Explanation: The genes that make her eyes blue came from dominant alleles.
Answer:
brown eyes
Explanation:
The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive.
Approximately how many plant made pharmaceuticals are currently under different stages of discovery?
a.
100
b.
200
c.
300
d.
400
How do we know a particular lineage of prokaryote exists in a natural habitat without first isolating and growing it in laboratory culture
The use of DNA-based techniques is one way to ascertain whether a certain lineage of prokaryote occurs in a natural habitat without first isolating and cultivating it in laboratory culture.
These methods allow researchers to identify species of prokaryotes without having to isolate and grow them in culture. The most common DNA-based method is called PCR (polymerase chain reaction) which is used to amplify and detect the presence of specific DNA sequences in a sample. By designing primers specific to a particular prokaryote, researchers can determine if the organism is present in a given sample, even if it is present in very small amounts.
Other methods such as denaturing gradient gel electrophoresis (DGGE) and 16s rRNA gene sequencing can also be used to identify different species of prokaryotes in a sample. These methods allow researchers to determine if a particular lineage of prokaryote exists in a natural habitat without having to isolate and grow it in laboratory culture.
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Cellulose could provide a widely available and cheap form of glucose, but humans cannot digest it. Why not
Cellulose could provide a widely available and cheap form of glucose, but humans cannot digest it due to the lack of the cellulase enzyme.
Cellulose is one of the most abundant organic compounds on Earth, making up the cell walls of plants. It is composed of glucose molecules linked together in a linear chain. This chain is very difficult for humans to digest, as our digestive system lacks the necessary enzymes to break down the bonds between the glucose molecules.
Cellulose is a complex carbohydrate, meaning it is composed of long chains of glucose molecules that are connected in a more intricate way than simple carbohydrates such as sucrose or fructose. This makes it more difficult for our digestive system to break down. Humans lack the enzyme called cellulase, which is necessary to break down the bonds between the glucose molecules in cellulose. Without this enzyme, our digestive system cannot access the glucose molecules in cellulose and therefore cannot use it as a source of energy.
Cellulose is not completely indigestible, however. Bacteria and some animals, such as cows and horses, are able to digest cellulose due to their possession of the cellulase enzyme. These animals are able to break down the bonds between the glucose molecules in cellulose and use the glucose as a source of energy.
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What are the non-living component of an ecoytemPick the non-living component of an ecoytem from the provided choice. Producer
Conumer
Herbivore
Air
? The non-living component of an ecoytem are factor
1. The non-living component of an ecosystem is the air.
Thus, the correct answer is D.
2. The factor of non-living component of an ecosystem is an abiotic factor.
In ecology, biotic аnd аbiotic fаctors mаke up аn ecosystem. Biotic fаctors аre the living pаrts of the ecosystem, such аs plаnts, аnimаls, аnd bаcteriа. Аbiotic fаctors аre the nonliving pаrts of the environment, such аs аir, minerаls, temperаture, аnd sunlight.
The non-living, physicаl feаtures of the environment аre cаlled аbiotic fаctors. The prefix а meаns “not.” The term аbiotic meаns “not living.” Аbiotic fаctors include аir, wаter, soil, sunlight, temperаture, аnd climаte. The аbiotic fаctors in аn environment often determine which kinds of orgаnisms cаn live there.
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How does a green leaf appear in red light use what you know about reflection and absorption of light?
Green light reflection off of it and reaches our sight, we refer to it as a "green" leaf. Other light wavelengths are absorbed by that of the leaf and cease there.
A green leaf appears red in red light because it reflection red wavelengths of light and absorbs all other wavelengths. This is due to the presence of pigments in the leaf, such as chlorophyll, which selectively absorb certain wavelengths absorption of light for photosynthesis. The chlorophyll absorbs most of the other color light spectrum except for red light, which is reflection, making the leaf appear red. There won't be any light coming from the leaf if there isn't any absorption green light to reflect off of it. When we gaze at anything that is completely dark, we refer to it as "black." Only because of its surrounds and backdrop do we know reflection it is there.
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How are weather and climate the same? How are they different? ¿En qué se parecen el tiempo y el clima? ¿En qué se diferencian?
Answer:
They are the same because they both talk about atmospheric conditions like precipitation, temperature, amount of sun, etc. They are different because weather talks about short-term changes in the atmosphere while climate describes weather over a long period of time in a certain area. Different regions can have different climates and or weathers.
What foods were rationed and why?
Basic foodstuffs such as sugar, meat, fats, bacon and cheese were directly rationed by an allowance of coupons. Housewives had to register with particular retailers.
The restricted distribution of limited resources, products, or services, or a fictitious demand restriction, is rationing. One's allotted share of the resources being distributed on a specific day or at a specific time is controlled by rationing. Rationing can take many different forms, but price rationing is the most common.
Rationing is frequently used to maintain prices below the market clearing price, which is established by supply and demand in a free market. Rationing can therefore work in addition to price regulations. The different nations that rationed gasoline during the 1973 oil crisis are an example of rationing in the face of rising prices.
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When a large percentage of the population have detached homes with yards in highly urban areas, the presence of sprawl is nearly inevitable. True False
False, One of the global difficulties confronting spatial development planning in recent years has been urban sprawl, defined as low-density, uncontrolled, limitless, and intermittent physical expansion into suburban areas.
Controlling two major elements, "population growth" and "per capita land consumption," is central to most of the work on urban sprawl. This study is to propose a comprehensive framework for dealing with this phenomenon emphasizing the case study of Shiraz Metropolitan Area (SMA) in Iran through identifying the drivers stimulating these two factors.
Spatial analytics, mathematical and statistical approaches such as Holder analysis, path analysis, and other statistical analyses were used in the analyses.
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What happens when we increase the number of cells?
When we increase the number of cells, we are increasing the total number of individual organisms in a larger system. This can have a wide range of effects, depending on the type of organism and the environment that it is in.
In the case of a single-celled organism, such as a bacterium or a protozoan, an increase in cell numbers will likely result in an increase in population size. As the population size grows, the organism’s ability to access resources, such as food and shelter, may become limited. The organism may also become more prone to competition with other species in the same environment, which could result in a decrease in overall fitness of the population. The organism may also become more vulnerable to disease and predation, as the overall population becomes more concentrated.
In the case of a multicellular organism, such as a plant or an animal, an increase in cell numbers can have a variety of effects. This can include increased strength and size, as well as the ability to perform complex functions. For example, an increase in the number of cells in a muscle can lead to increased muscle strength and size, allowing for greater physical activity. Likewise, an increase in the number of neurons in the brain can lead to improved cognitive abilities, allowing for more complex problem solving and decision making.
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5 Compare The images below show two processes by which clouds form when an air mass is lifted. In what ways are these two processes similar? In what ways are these two processes different?
The two processes Frontal Lifting and Orographic lifting are similar but different processes that occur int he Earth's Hydrologic Cycle.
When air is raised over an obstruction such as a mountain, this is known as orographic lifting. As the air mass is elevated, it cools and moisture inside the air mass condenses, perhaps becoming precipitation. Frontal lifting happens when warm and cold air masses collide.
What is Hydrologic Cycle?The water cycle is a biogeochemical cycle that depicts the continuous movement of water on, above, and below the Earth's surface. It is also known as the hydrologic cycle or the hydrological cycle.
The hydrologic cycle is critical because it is the means by which water reaches plants, animals, and us! Aside from providing water for people, animals, and plants, it also transports nutrients, diseases, and sediment into and out of aquatic habitats.
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what does “How does her experience connect to the theme “A Matter of Life-or-Death”? What lesson about human nature does her experience teach you? “ means
Extremely important, often because someone may die or suffer great harm if people do not act immediately.
How does her experience connect to the theme ?What actually important in life are friendships, relationships, time, memories, and experiences. It is those people and things that can never be replaced, no matter how hard you try. Another crucial part of life is purpose, since without it, you would feel empty and bereft of everything.
Human nature is a notion that refers to the underlying inclinations and qualities that humans are considered to have naturally, such as ways of thinking, feeling, and behaving. The word is frequently used to refer to the essence of humanity or what it “means” to be human. The natural world and its processes may teach us a lot about the flexibility, inventiveness, and resilience that already exists inside us and is only waiting to be unleashed.
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Select the correct labels for the parts of this atom. ( Part a: Part b: Part c:
ions
proton
neutron
electron
nucleus
The parts of atoms include:
a - protonb - electronc - neutronHow do atoms work?An atom is made up of a central nucleus and one or more negatively charged electrons. The nucleus is positively charged and contains one or more protons and neutrons, which are relatively heavy particles. Atoms are the fundamental constituents of matter.
Protons are made up of two up quarks and one down quark. Neutrons are made up of one up quark and two down quarks. The "strong nuclear force," one of the four fundamental forces, holds the nucleus together.
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