The respiratory system includes which of the following? Select all that apply. A. nose. B. lungs. C. alveoli. D. trachea. E. bronchi

Type O blood does not contain either A or B agglutinogens. Antigens are another name for agglutinogens.

Plasma from people with Type O blood contains agglutinins (antibodies) a and b. Any type A blood cells that might enter the circulatory system are assisted by antibody A in being destroyed by the body. Any type B blood cells that might enter the circulation system are helped by antibody b to be destroyed by the body.

As a result, in humans, type O has neither antigen nor agglutinin, type A has both antigens (A and B), type B has both antigens (B and A), and type AB has neither antigen nor agglutinin. also see blood typing.

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The answer that best describes a plasma membrane is A. It controls the passage of water, ions, oxygen, waste, and organic molecules.

A membrane is a thin, flexible layer of material that separates two regions or compartments from each other. In biology, membranes are found in cells and are composed of lipid bilayers, which consist of two layers of phospholipid molecules with hydrophobic tails facing inward and hydrophilic heads facing outward. Membranes act as barriers that regulate the exchange of materials between the inside and outside of cells, allowing for the selective passage of certain molecules and ions while preventing others from passing through. In addition to their role as physical barriers, membranes also contain proteins and other molecules that are involved in a variety of cellular processes, including signal transduction, energy production, and transport of materials across the membrane.

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B. better health, more wealth is NOT a characteristic of a developing country according to the United Nations.

What is developing country?

Developing countries are typically characterized by lower life expectancy, faster population growth, and shorter doubling time. These countries also tend to have lower levels of income and wealth, as well as less developed infrastructure and social systems compared to developed countries.

While developing countries may experience improvements in health and wealth over time, particularly through economic growth and investment in health systems, the United Nations still considers them to have lower levels of health and wealth compared to developed countries.

What is health?

Health refers to a state of complete physical, mental, and social well-being, and not merely the absence of disease or infirmity. It encompasses all aspects of a person's life, including their physical, mental, emotional, and social well-being.

Health is influenced by a variety of factors, including genetics, lifestyle choices, environmental factors, access to healthcare, and social and economic circumstances.

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Answer:

Triglycerides

Explanation:

Triglycerides are the main form of lipids in the body and in foods

The eukaryotic cells' internal areas become more functionally concentrated as a result of the integration of organelles. Hence, eukaryotic cells are significantly more efficient than prokaryotic cells at producing energy and getting rid of waste.

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Each enzyme works best at a specific pH. pH environments below or above this preferred level decrease enzyme activity by causing the enzyme to denature.

Enzymes are proteins that catalyze chemical reactions in the body. They help speed up chemical reactions without being consumed themselves. Each enzyme has a specific three-dimensional shape, which allows it to interact with specific molecules, called substrates. The activity of enzymes is highly dependent on their environment. This includes factors such as temperature, pH, and salt concentration. The optimal pH of enzymes can vary depending on the specific enzyme.

Enzymes work most effectively within a specific pH range. When enzymes are subjected to pH environments outside of their preferred range, they can experience a decrease in activity. This is because the acidity or alkalinity of the environment can cause the enzyme's three-dimensional shape to become altered, leading to denaturation. Denaturation is the process by which a protein loses its structure and function. Therefore, enzymes will have reduced activity if they are not in an environment that suits their specific pH.

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The presence of scybala in a fecal specimen indicates a parasitic infection. Scybala are tiny, hard pieces of fecal matter created by intestinal parasites.

The digestive enzyme's capacity to break down food into simple, absorbable components is decreased in digestive enzyme deficiency. This may happen in some pancreatic, liver, or small intestine disorders that impair the production or delivery of digestive enzymes.

Malabsorption of fats in the gastrointestinal tract might result in the presence of fatty stools, which are described as greasy, oily, and smelly. Fecal fat examination is the testing of fecal samples to evaluate the amount of fat that has been excreted. These parasites feed off nutrients in the body, leading to decreased intestinal mobility, decrease in digestive enzymes, and presence of fecal fat.

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Answer:

The best two sentences that support the answers to Part A are:

"Any feature of the body with a unique shape, size, texture or pattern potentially can be used to identify someone." (Paragraph 5)

This sentence supports the answer to Part A because it indicates that any unique feature of the body can be used for biometric identification, including features like the pattern of veins in the hand.

"It can be hard to get a good print from people who have worn down the skin on their fingers after years of working with rough materials, such as brick or stone." (Paragraph 32)

This sentence supports the answer to Part A because it explains that people who have worked with rough materials for many years may have worn down their fingerprints, making it more difficult to use fingerprints for biometric identification.

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Translation refers to protein growth, which occurs in the cytoplasm through the interaction between mRNA, rRNA, and tRNA. 1) Amino acids: stop - Glu - stop - Ile. 2) Amino acids: Ile - Lys - Cys - Pro. 3) Amino acids: Leu - Leu - Gly - Ile.

The translation is the stage of protein synthesis in which mRNA, rRNA, and tRNA interact to grow the molecule.

The ribosome is in charge of reading mRNA from its 5' extreme to 3' extreme. Meanwhile, tRNA associates with the ribosome to build the polypeptidic chain. Molecule growing occurs according to the mRNA codon sequence.

A codon is a short sequence of three nucleotides that store the genetic information for the aminoacids' assembly.

Each tRNA has two important sites. One of them couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid.

When the new amino acid binds to the growing peptidic chain, the tRNA molecule leaves the ribosome, leaving a space for the next tRNA.

• The start codon AUG is the most common sequence used by eukaryotic cells and is placed near the 5' extreme of the molecule.

• The stop codons are UAA, UAG, and UGA.

1)

mRNA 1: UGA GAA UGA AUU

amino acids: stop - Glu - stop - Ile

2)

mRNA 2: AUU AAA UGC CCA

amino acids: Ile - Lys - Cys - Pro

3)

mRNA 3: CUA CUG GGU AUA​

amino acids: Leu - Leu - Gly - Ile

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Yes, messenger RNA refers to lengthy strands of RNA nucleotides that are complementary to one strand of DNA. (mRNA).

Transcription, the initial phase in gene expression, results in the creation of mRNA. The promoter is a particular area of the DNA molecule that the RNA polymerase enzyme attaches to during transcription.

The promoter is where the complementary strand of mRNA is created by matching the RNA nucleotides to the DNA nucleotides. As a consequence, a strand of mRNA that is complementary to one of the DNA strands forms.

This strand of mRNA then transports the genetic material from the DNA to the ribosomes, where it is translated into a protein.

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The correct answer is:

High air temperature causes the air particles to rise, creating low air pressure.

Low air temperatures cause air particles to clump together, creating high atmospheric pressure.

Air temperature and air pressure are related because air pressure is directly proportional to temperature. When air is heated, its particles become more energetic and move faster, creating more space between them, which leads to a drop in atmospheric pressure. Conversely, when air is cooled, its particles become less active and move more slowly, bringing them closer together, resulting in higher atmospheric pressure. Therefore, high air temperature produces low air pressure and low air temperature produces high air pressure.

So, the correct answer is: High air temperature causes the air particles to rise, creating low air pressure.

Pressure is the amount of force applied per unit of area. It is a scalar quantity, meaning it has magnitude but no specific direction. In the context of gases, pressure is the force exerted by the particles in the gas against the walls of the container it is in. It can also be applied to liquids and solids. The standard unit of pressure is the pascal (Pa), but other common units include pounds per square inch (psi) and atmospheres (atm).

Here,

High air temperature causes the air particles to rise, creating low air pressure. Conversely, low air temperature causes the air particles to be packed together, creating high air pressure.

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The goal of antimicrobial susceptibility testing is: option (B) states that "to determine which antimicrobial drug is most effective at inhibition of the causative agent".

This is because antimicrobial susceptibility testing tests the ability of an antimicrobial drug to inhibit or kill a particular type of bacteria or microorganism. It helps determine which drug will work the best to treat an infection.

This is important because it can help doctors choose the most effective drug for the particular infection. It also helps determine the least likely drug to cause allergic reactions, toxicity, or other adverse effects in the patient.

Ultimately, the goal of antimicrobial susceptibility testing is to determine which antimicrobial drug the patient is most sensitive to, so that the most effective treatment can be used.

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A receptor that binds to one of these signaling molecules would be found in the plasma membrane of a cell.

The receptor molecule is the membrane-bound protein that binds to signaling molecules. The receptor is usually a transmembrane protein that spans the lipid bilayer of the plasma membrane.

Signalling molecules, also known as ligands, are molecules that bind to specific receptors on the surface of a target cell, resulting in a biochemical reaction in the cell.

In this way, signaling molecules play a vital role in cell communication and the regulation of physiological processes.

The binding of a signaling molecule to a receptor on the surface of a target cell causes a biochemical reaction within the cell. This reaction could be to trigger the release of a second messenger, activate or deactivate an enzyme, or cause a structural change in the receptor.

Signaling molecules are synthesized by one cell and then released into the extracellular fluid, where they bind to specific receptors on the surface of target cells, initiating a signaling cascade.

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Many forests and grasslands depend on periodic wildfires to maintain their ecosystems, this best demonstrates the ecosystem service of "natural disturbance."

Natural disturbance is a vital ecosystem service that maintains natural biodiversity, ensures ecosystem productivity, and enhances ecosystem services. Many ecosystems, including forests, grasslands, and wetlands, rely on natural disturbances to maintain their diversity and productivity.Periodic wildfires are a natural and essential disturbance that helps to maintain healthy ecosystems.

Wildfires produce new habitat, increase resources, and reduce competition, leading to a diversified, dynamic ecosystem that can withstand further environmental changes or stresses. The carbon cycle, nutrient cycling, and hydrological cycle are other important ecosystem services provided by natural disturbances, which play a critical role in regulating the environment and maintaining ecosystem stability.

Consequently, natural disturbances, such as wildfires, floods, storms, and droughts, are essential for maintaining the health and resilience of natural ecosystems. Therefore, the best way to ensure ecosystem sustainability is to maintain a balance between human activities and natural disturbances.

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Option A is the correct answer. The mechanism for the development of resistance in the B. anthracis organism through the use of antibiotics can be best outlined through the mutation in B. anthracis which leads to an altered target that makes the organism resistant to the antibiotic.

Antibiotic resistance refers to the ability of microorganisms such as bacteria, viruses, fungi, or parasites to resist the effects of antibiotics that once could successfully cure the infections caused by them. Resistance to antibiotics is a critical public health concern worldwide because it can significantly increase the risk of morbidity, mortality, and healthcare expenses.

Therefore, understanding the mechanism of antibiotic resistance and ways to avoid or treat it has become a matter of global importance.

In this case, when the researcher creates an antibiotic that binds to a protein present only in B. anthracis, it causes the cell to lyse from the outside. However, after a few years of using this antibiotic, some organisms start to develop resistance to the antibiotic, which means the antibiotic is no longer effective.

This resistance mechanism is attributed to a mutation in B. anthracis, which leads to an altered target that makes the organism resistant to the antibiotic.

Thus, option A  (mutation in B. anthracis → altered target → resistant bacterium) is the correct answer.

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e) auditory tube joins the middle ear to the nasopharynx. The pharyngotympanic or eustachian tubes are other names for the auditory tube. This structure joins the middle ear to the lateral nasopharynx wall.

While swallowing, yawning, or when the air pressure varies, this tube works to balance the pressure between the two cavities.

The vestibulocochlear organs are found in the inner ear, which is regarded as the hearing centre of the ear. The membranous labyrinth and the bone labyrinth are the two main inner ear structures. The cochlea, vestibule, and three semi-circular canals are formed by the bony labyrinth, which is a network of cavities within the temporal bone. Perilymph fills these structures.

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Proteins need to be denatured using an anionic detergent such as SDS before gel electrophoresis because:

a) most proteins have a uniform positive charge,

b) the overall charge of a protein depends on the amino acid composition of the protein and can vary greatly, and

c) most proteins have complex three dimensional structures that can impact their movement through the gel.

Denaturing proteins with an anionic detergent like SDS neutralizes the charge of the proteins, allowing them to move evenly through the gel in a consistent pattern during the electrophoresis process.

Without the anionic detergent, the proteins would not move evenly and the results of the gel electrophoresis would not be accurate.

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There are four strains of Corynebacterium diphtheriae:

Corynebacterium diphtheriae is a pathogenic gram-positive bacterium that causes diphtheria in humans. It is rod-shaped, non-motile, non-sporing, and non-capsulated. There are four strains of Corynebacterium diphtheriae, each characterized by the type of toxin produced:

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""Smashing into the car" is a phrase. It does not express a complete thought and cannot stand alone as a sentence.

It typically includes a subject, which is the person, place, thing, or idea the sentence is about, and a predicate, which is the action or description that is being performed or stated about the subject. A sentence can be simple, containing just one independent clause, or it can be complex, containing multiple clauses joined together. Sentences can be used to make statements, ask questions, give commands, or express strong emotions.

As a verb, "smashing" means to break or crush something violently into small pieces.

As an adjective, "smashing" means excellent, impressive, or attractive.

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The invasive Burmese python was responsible for about 99% drop in the opossum populations in the Everglades by 2012. Native to Southeast Asia, this large snake population was released into the Everglades by human populations, and it has since then wreaked havoc on the local wildlife of the ecosystem. Thus, the correct option will be python.

Opossums are the small to medium-sized marsupials which are found primarily in the North and South American regions. They are known for their distinct appearances, as well as their ability to play dead, which has led to the use of the term "playing possum" to describe someone pretending to be dead.

The python in the Everglades: The Burmese python is a species of python that is native to Southeast Asia. It was brought to Florida in the 1980s as a pet but has since become an invasive species in the Everglades. The pythons pose a serious threat to the ecosystem in the region. They are capable of killing and eating a variety of animals, including small mammals like opossums, which led to a 99% decline in their populations by 2012.

Therefore, the correct option will be python.

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Pain that starts colicky and then localizes to the right upper quadrant with anorexia and nausea may be a sign of cholecystitis.

The gastrointestinal disease that may cause pain that starts colicky and then localizes to the right upper quadrant with anorexia and nausea is cholecystitis. Cholecystitis is a disease that affects the gallbladder. The gallbladder is a tiny organ beneath the liver that stores the bile that is needed to digest fatty meals.

When the gallbladder becomes infected or inflamed, this is known as cholecystitis. The symptoms of cholecystitis can include Constant pain in the upper right quadrant of the abdomen that can radiate to the shoulder blades, especially after eating fatty meals. Nausea, Vomiting, Fever, Yellowing of the skin and whites of the eyes (jaundice).

Cholecystitis can be either acute or chronic. In acute cholecystitis, the symptoms appear suddenly and are severe. The symptoms of chronic cholecystitis are less severe and occur more frequently over a more extended period. The treatment for cholecystitis is usually surgery to remove the gallbladder, known as a cholecystectomy.

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Option a) Empirical rule graph b) About 99.7% of men will have blood pressure between 83 mm and 167 mm. c) 0.3  percentage of men will have a systolic blood pressure outside the range 111 mm to 153 mm.

A graph to represent the systolic blood pressure of adult males with a mean of 125 mm and standard deviation of 14 mm will have a horizontal axis labelled with "Systolic Blood Pressure (mm)" and the vertical lines for the mean, the first 3 standard deviations below the mean, and the first 3 standard deviations above the mean labelled with numerical values. The 8 regions between the vertical lines will be labeled accordingly: μ-3σ, μ-2σ, μ-σ, μ, μ+σ, μ+2σ, μ+3σ, and μ+4σ.

Systolic blood pressure of adult males is approximately normally distributed with mean μ = 125 and standard deviation σ = 14.

We can find the data points for the horizontal axis by using the empirical rule. The empirical rule states that for a normal distribution:

About 68% of the data is within 1 standard deviation of the mean μ. ( μ ± σ)

About 95% of the data is within 2 standard deviations of the mean μ. ( μ ± 2σ)

About 99.7% of the data is within 3 standard deviations of the mean μ. ( μ ± 3σ)

Using these data points, we can create the following empirical rule graph:

Horizontal axis label: Systolic Blood Pressure (mm)

Vertical lines (labeled with standard deviations and the mean):

μ - 3σ = 83,

μ - 2σ = 97,

μ - σ = 111,

μ = 125,

μ + σ = 139,

μ + 2σ = 153,

μ + 3σ = 167

Label for areas of the 8 regions:

Region 1: 68% of data;

Region 2: 95% of data;

Region 3: 99.7% of data;

Region 4: 0.15% of data;

Region 5: 2.5% of data;

Region 6: 16% of data;

Region 7: 2.5% of data;

Region 8: 0.15% of data

b) About 99.7% of men will have blood pressure between 83 mm and 167 mm. This is because 99.7% of data lies within 3 standard deviations of the mean μ.

c) We can use the empirical rule graph for finding the percentage of men that will have systolic blood pressure outside the range of 111 mm to 153 mm. This range includes the data in Region 5, Region 6, and Region 7.

Thus, the percentage of men that will have systolic blood pressure outside this range is given by:

Percentage = Region 4 + Region 8

                   = 0.15% + 0.15% = 0.3%

Thus, about 0.3% of men will have systolic blood pressure outside the range of 111 mm to 153 mm.

About 99.7% of men will have blood pressure between 60 mm and 190 mm. The percentage of men outside the range of 111 mm to 153 mm will be about 0.3%.

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The fitness of genotype a1a1 when the frequencies of allele 1 and allele 2 are 0.7 and 0.3, respectively and it has a selection coefficient of 0.2 is 0.76.

An allele frequency refers to the frequency at which a specific allele appears in a population. The frequency of an allele refers to the rate at which an allele appears in the gene pool of a population. The gene pool of a population is the sum of all the genetic data within the individuals in the population.

It includes all the alleles, chromosomes, genes, and variations of genes that make up the population. In this case, the frequency of allele 1 is 0.7 and the frequency of allele 2 is 0.3. Genotype fitness is the fitness of a particular genotype in a population. It can be calculated using the following formula: w = 1 – s × (q2). Where,

In this population, the frequency of allele 1 is 0.7, so the frequency of the homozygous recessive genotype (a1a1) can be calculated as follows:q2 = p2 * (1 – 2p) + q2where p is the frequency of the dominant allele, which in this case is 0.7.

Therefore,q2 = (0.7)2 × (1 – 2 × 0.7) + (0.3)2q2 = 0.49 × (1 – 1.4) + 0.09. q2 = 0.21. The fitness of the a1a1 genotype can now be calculated as follows: w = 1 – s × (q2)Where s is the selection coefficient of the a1a1 genotype, which is 0.2. So,w = 1 – 0.2 × (0.21). w = 0.76. Therefore, the fitness of the a1a1 genotype is 0.76.

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The roots grown downward in the direction of gravity, which is positive gravitropism, and the shoot grows upward away from gravity, which is negative gravitropism. The reason plants know which way to grow in response to gravity is due to amyloplasts in the plants.

Animals, fungi, and certain bacteria are typically or always heterotrophs.

The following that are typically or always heterotrophs are organisms that rely on other organisms for energy and nutrients. They are unable to produce their own food and must consume organic material produced by other living organisms. Examples of heterotrophs include animals, fungi, and some bacteria. Animals are typically heterotrophs, relying on plants or other animals for food. Fungi are also heterotrophs and obtain their energy from decaying organic matter. Certain species of bacteria, such as those in the genus Vibrio, also rely on organic matter for their energy needs. Photosynthetic organisms, such as plants and some bacteria, are typically autotrophs, meaning they can synthesize their own organic compounds using energy from sunlight or inorganic substances.

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The constant action of waves, tides, and wind can erode the coastline and create cliffs, rocky shores, and beaches. This erosion is more intense in areas where the ocean meets the land, and it can affect both natural and man-made structures.

Tides are the rise and fall of sea levels caused by the gravitational pull of the Moon and the Sun on the Earth's oceans. The gravitational force of the Moon is the primary cause of tides, while the gravitational force of the Sun also plays a role. The strength of the gravitational pull depends on the distance between the Moon and the Earth, which varies as the Moon orbits the Earth. As a result, tides are not constant, but rather change throughout the day and over the course of a month.

Tides are important for a number of reasons. They create important habitats for marine life, shape coastlines, and play a role in navigation and shipping. Tidal power, which involves harnessing the energy of the tides to generate electricity, is also being explored as a potential source of renewable energy.

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Answer: organismal level

Explanation:

The most complex level of organization is the organismal level, where all eleven organ systems function in the human organism, the whole living person.

The correct order of the layers of the cutaneous membrane is Epidermis, dermis, hypodermis.

Cutaneous membrane is made up of three layers. They are the epidermis, dermis, and subcutaneous tissue, also known as the hypodermis. These layers are listed in order from the surface to the deepest layer.

Epidermis: It is the outermost layer of the skin. This layer includes the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. The epidermis serves to safeguard the body against bacterial, viral, and other foreign substances and also to prevent water from leaving the body.

Dermis: The dermis is the second layer of the skin that lies beneath the epidermis. The dermis layer contains hair follicles, blood vessels, lymph vessels, nerves, and sweat glands. It also contains collagen fibers and elastic fibers that are responsible for skin elasticity and strength.

Hypodermis: Subcutaneous tissue, also known as hypodermis, is the deepest layer of skin. It contains adipose tissue, blood vessels, and nerves. This layer assists in maintaining body temperature and energy storage.

Therefore, the correct order of the layers of the cutaneous membrane is Epidermis, dermis, hypodermis.

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In addition, Hoover persuaded Congress to establish Federal Home Loan Banks to assist individuals in preventing the loss of their homes.

The 31st president of the United States, Herbert Hoover, took office on March 4, 1929, and served until March 4, 1933. Following a convincing victory over Democrat Al Smith of New York in the 1928 presidential election, Hoover, a Republican assumed office.

Hoover raised $17 million, or $265.19 million in 2021, through the establishment of over one hundred tent cities and a fleet of over 600 vessels. By 1928, Hoover had begun to overshadow President Coolidge himself, in large part due to his leadership during the flood crisis.

The Emergency Relief Construction Act, which Hoover signed into law in July 1932, allowed the RFC to lend the states $300 million for relief programs and $1.5 billion for public works projects.

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The best explanation of the processes illustrated in Figure 1 is that the introns are removed from the pre-rRNA, and the mature rRNA molecules are joined and then translated to produce the protein portion of the ribosome.

In other words, sections of the pre-rRNA are removed and the mature rRNA molecules are available to combine with proteins to form the ribosomal subunits, which then get translated to create the proteins that make up the ribosomal subunits.

The introns are also known as intervening sequences since they are not observed in mature RNA. rRNA or the ribosomal RNA plays an important structural as well as catalytic role during the process of translation.

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