Higher-order folding involves association of the DNA with a nuclear scaffold, which contains large amounts of Histone H1 and Topoisomerase II.
What is Histone?Histones are highly basic proteins abundant in lysine and arginine residues that provides structural support for a chromosome. They are found in eukaryotic cell nuclei. They act as spools around which DNA winds, which gives the chromosome a more compact shape, to create structural units called nucleosomes. Nucleosomes in turn are wrapped as 30-nanometer fibers that form tightly packed chromatin. There are five types of histones namely H2A, H2B, H3, H4 and H1 linker histone. Within a nucleosome, they exist as two dimers of (H2A-H2B) and a complex of (H32-H42) eventually forming an octamer.
What is Topoisomerases?Topoisomerases are nuclear enzymes which play essential roles in DNA replication, transcription, chromosome segregation, and recombination.
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The scar tissue generated in the brain by _______ cells acts to impede the regrowth of nerve cells.
Answer:
astrocytes
Explanation:
astrocytes
According to the american association of physical anthropologists (aapa) code of ethics, anthropologists are primarily responsible to:_______
According to the american association of physical anthropologists (AAPA) code of ethics, anthropologists are primarily responsible to the people, species, and materials they study.
What is American association of physical anthropologists (AAPA)?Physical anthropologists are members of the anthropology community as well as numerous other groups, each of which has its own moral standards. Physical anthropologists have responsibilities to their academic field, society at large, and the environment. Physical anthropologists have the means to create and uphold an ethical framework while they go about their job thanks to the ideas and rules in this Code. The American Anthropological Association (AAA) established and adopted a code on which this Code is based. The AAA has given the AAPA authority to use and alter the AAA Code as necessary.Learn more about the Physical anthropologists with the help of the given link:
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How do postzygotic isolating mechanisms prevent successful interspecies hybridization?
The postzygotic isolating mechanisms prevent successful interspecies hybridization because although fertilization may be considered as successful, the resulting hybrid offspring is unable to develop or reproduce.
What are postzygotic isolating mechanisms?The postzygotic isolating mechanisms are different evolutionary mechanisms that prevent the emergence of hybrid species by acting after fertilization and therefore they act on the offspring to avoid further reproduction of these individuals.
In conclusion, the postzygotic isolating mechanisms prevent successful interspecies hybridization because although fertilization may be considered as successful, the resulting hybrid offspring is unable to develop or reproduce.
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What is the position of the body when it is in the ""normal anatomical position?"".
When the body is in the ""normal anatomical position" it refers to as hominid anatomy.
The body is referred to as being in what is known as the typical anatomical position when discussing hominid anatomy. The typical anatomical stance for a human is standing with their feet together and pointing forward, without any long bones being crossed from the observer's point of view. Human anatomy and physiology can be explained in a straightforward and consistent manner using standard anatomical positions. Many anatomical terminology are used to describe the relative placement of different appendages in relation to the standardized position while analyzing an individual's anatomy.Learn more about the anatomy with the help of the given link:
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What are the differences in the way lipids are found or function in plants and animals?
Lipids are stored as triacylglycerols and waxes on both animals and plants
What is lipids ?Lipid can be described as an organic compound that is not soluble in water. lipid is an essential component that is needed for proper functionality in both plants and animals.
In plants, lipids help provide lots of energy that is needed for different metabolic processes that goes on in the plant. Lipids also help fight off pathogens in plants
In animals, lipids also serve as an energy source and they help in the regulation of the different hormones present in the body. Lipid also help signal important molecules when they are required in the body and they also help in the proper digestion of food molecules.
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Which is not evidence for the endosymbiotic origins of mitochondria and chloroplasts?
Mitochondria and chloroplast have similar DNA, which is not evidence for the endosymbiotic origins of mitochondria and chloroplasts.
According to the endosymbiotic theory, a chloroplast and a mitochondria were the independent prokaryotes. Both can be ingested by a large prokaryote and resist digestion. As a result, they continued as endosymbionts and eventually lost some of their autonomic properties. They divide by binary fission, have their own genetic material, possess 70s ribosomes, and Both include their own transcriptional and translational machinery.
Therefore, considering endosymbiotic origin theory, Both Mitochondria and chloroplast have similar DNA is not a piece of evidence.
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The enzyme phosphorylase catalyzes the conversion of ___________ into ___________.
The enzyme phosphorylase catalyzes the conversion of glycogen into glucose-6-phosphate.
Glycogen is a carbohydrate storing the body of animals, including human beings. Glycogen is broken down into glucose by the enzyme phosphorylase to provide energy to the animals. The carbohydrates in the human body are stored in the form of glycogen in the liver and muscle cells of a human. It provides immediate energy while fasting by breaking down glycogen into glucose.
The breaking down of glycogen into glucose is called glycogenolysis. The hormones like glucagon and epinephrine (adrenalin) stimulate the breaking down of glycogen in the liver. Glucagon is secreted by the pancreas and epinephrine is secreted by the kidneys.
The breakdown of glycogen polymer in the liver is catalyzed by the enzyme glycogen phosphorylase to produce glucose-1-phosphate. Glucose-1-phosphate is converted into glucose-6-phosphate by the enzyme phosphoglucomutase in the liver, kidneys, and intestines. The cells of these organs secrete free glucose into the blood, thereby restoring glucose levels in the blood.
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4. Pea plant clones are giving different amounts of water for three-week period. The first pea plant receives 400 milliliters a day. The
second pea plant receives 200 milliliters a day. The third pea plant receives 100 milliliters a day. The fourth pea plant does not receive
any extra water: the plant only receives natural ways of receiving water. The heights of the pea plants are recorded daily.
IV:
DV:
Based on the information presented in the above experiment, the following applies:
Independent variable (IV): Different amounts of waterDependent variable (DV): Heights of the pea plantWhat is independent and dependent variables?Independent variable of an experiment is the variable that is manipulated or changed in the experiment.
On the other hand, the dependent variable is the variable that is measured or recorded in the experiment.
According to this question, pea plant clones are giving different amounts of water for three-week period as follows;
The first pea plant receives 400 milliliters a day. The second pea plant receives 200 milliliters a day. The third pea plant receives 100 milliliters a day. The fourth pea plant does not receive any extra waterBased on the information given above, the IV is the different amounts of water received while the DV is the height of the plants that was recorded after.
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14 Claims. Evidence Reasoning Explain why
it is valuable for some objects to be shown by
more than one kind of model. Provide evidence
to support your claim.
Describing objects through various models provide insight into their detailed structure (physical, chemical and molecular) as well as it supports its occurrence based on various theories.
What is a model in a study?Model is the representation of an object in a study. Model can be designed or explained scientifically. Model is based on the approach or hypothesis for a particular study.
Models can be constructed on the basis of various aspects such as physical, theoretical, mechanical, chemical, biological or symbolic. A model can be useful in describing the structure, properties or facts about the object. Model can also be used for comparing two objects.
Thus, models are an important element in the study of objects.
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If the diploid body cells in a giraffe contain 30 chromosomes each, how many chromosomes would a giraffe sperm cell contain?
If the diploid body cells in a giraffe contain 30 chromosomes each, then 15 chromosomes would a giraffe sperm cell contain.
Sperm Cell/Gametes contains the "n" number of chromosome which equals to the half of the diploid cell/somatic cells.
[tex]n=\frac{number of chromosome}{2}[/tex]
Chromosome- A component that can be found in a cell's nucleus. Proteins and DNA are arranged into genes on a chromosome.
Gametes- A gamete is an animal or plant reproductive cell. Animals' male and female gametes are referred to as sperm and ova, respectively. Each ova and sperm cell has one copy of each chromosome, making them haploid cells. A sperm and an ovum combine during fertilization to create a fresh diploid creature.
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Stone tools are more commonly found on archaeological sites thought to be associated with:_________
a. australopithecus.
b. ardipithecus.
c. homo habilis.
d. paranthropus.
Stone tools are more commonly found on archaeological sites thought to be associated with Homohabilis.
Homohabilis are our ancestors having the same genus as us Homo, there are the extinct species that resided in the South Africa approx 2.3 million years ago. They were about 5 feet (1.52 m) tall and were the first ones to make use of stone to make tools. Also known as handy man due to the fact they could make stone tools.
Studies suggest that these were majorly vegetarian and didn't include meat in their diet. Technically speaking they were the first humans on this earth and therefore referred to as belonging to the genus Homo. Many fossils found all over the globe states many facts about their human nature.
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Which brain structure receives information from all the senses except smell? hippocampus amygdala pons thalamus
Brain structure that receives information from all the senses except smell is known as the thalamus.
Thalamus is a central, egg-shaped region in the human brain. It serves as a relay station including all incoming listening, taste, vision, and sensation (but not smell) sensory inputs from the body to the brain.
A specialized brain structure located deep within the temporal lobe is the hippocampus. It plays a significant part in memory and learning. It is a flexible and delicate structure that is responsive to many stimuli. According to studies, it is also impacted by a number of neurological and mental problems.
It is generally accepted that the amygdala serves as the hub of a brain system for processing scary and frightful inputs. Pons manages tasks and unconscious functions like breathing and the sleep-wake cycle.
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The cosmic microwave background (cmb) studies indicate that the total density of matter plus energy in the universe is very close to the critical density, indicating a?
The cosmic microwave background (CMB) studies indicate that the total density of matter plus energy in the universe is very close to 100% of the critical density, indicating a geometrically flat universe.
What does the cosmic microwave background tell us?Because it reveals how the early universe was created, the CMB is helpful to scientists. Only slight temperature variations that can be seen with accurate telescopes indicate that the temperature is uniform.
The strongest proof that the universe expanded from an initial violent explosion, known as The Big Bang, came from their discovery of the Cosmic Microwave Background (CMB), the radiation leftover from the birth of the universe.
Thermal radiation that was left over from the Big Bang's recombination period is known as the cosmic microwave background (CMB). Older literature has various names for the CMB, including "relic radiation" and "cosmic microwave background radiation."
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3. Which field of science helps one to understand living things and how they interact in their environments?
Obiology
O meteorology
O geology
Ochemistry
Answer:
Biology
Explanation:
Bio=life
Biology is the study of life
Hope It Helps
Sorry If I'm Wrong
What is the cause of surface tension? the collapse of alveoli the stretchiness of the lung tissue the fluid located between the pleural membranes
The correct option is (D) the attraction between water molecules.
The attraction between water molecules cause surface tension.
What causes the water molecules' surface tension?Cohesive interactions between the liquid's molecule's cause the surface tension to develop. The molecules at the center of the liquid are surrounded by other molecules on both sides. The net force is zero because molecules are tugging on one another equally in all directions. In contrast to the majority of the liquid, the liquid molecules at the interface only have half as many nearby molecules. This results in a net inward pull toward the liquid and a stronger association of the molecule with the molecules on either side of it. The force preventing the surface from breaking is surface tension.Learn more about the surface tension with the help of the given link:
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I understand that the question you are looking for is "What is surface tension?
A.) the fluid located between the pleural membranes
B.) the stretchiness of the lung tissue
C.) the collapse of alveoli
D.) the attraction between water molecules"
"_____ can fight some bacterial diseases.
Antibiotics can fight some bacterial diseases.
Antibiotics are the medication specially produced to fight the bacterial diseases. They can either kill the bacteria or slow their growth inside the host body. Some examples of antibiotics are: penicillin, cephalosporins, tetracycline, etc.
Bacterial diseases are those caused by the bacteria. These can be present outside the body and cause infection or may be present inside. The examples of diseases are: Tuberculosis, Anthrax, Tetanus, Leptospirosis, Pneumonia, etc. Some of the general symptoms of the bacterial disease are: fever, chills, cough, redness or swelling in some part of the body, vomiting, stomach pain, etc.
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Both corpus luteum and placenta secrete ______ to help ease the passage of birth and dilate the cervix.
Progesterone. It is a steroid hormone in charge of sustaining and decidualizing the endometrium.
What is a corpus luteum?
An ovary's corpus luteum is a collection of cells. During the first trimester of pregnancy, it is in charge of producing the hormone progesterone. In females, the corpus luteum is essential for establishing and maintaining pregnancy.
It is a yellow, hormone-secreting body that develops in the ovary at the site of the sac that has discharged after the egg has reached maturity during the process of ovulation. It is located in the female reproductive system. The granulosa cells that border the follicle begin to accumulate lipids and yellow pigments right after ovulation, which causes the development of lutein cells, which make up the corpus luteum.
Progesterone and estrogen are secreted by the corpus luteum. In the event of fertilization, they are crucial in creating changes in the uterus that make it more favorable for embryo-implantation; otherwise, it becomes dormant after about 14 days, resulting in menstruation.
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A type of connective tissue that provides primary support and protection for body structures is:__________
A type of connective tissue that provides primary support and protection for body structures is bones and cartilage.
Bones and Cartilage provides the most in-depth analysis and summary of the topic for all vertebrates. It examines the functions of bone and cartilage as tissues, organs, and skeletal systems, as well as their growth and evolution across time.
The most recent findings in molecular, cellular, developmental, and evolutionary biology are combined in Bones and Cartilage to form a cohesive field known as developmental and evolutionary skeletal biology. In addition to explaining how bone is mended when we break a leg or regenerates when a newt grows a new limb or a lizard develops a new tail, it also describes how bone and cartilage originate in embryos and are preserved in adults.
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Which is a correct comparison of the paper model of the planet Earth to the actual planet Earth?
(1 point)
The texture of the paper model is the same as the texture of planet Earth.
The paper model shows the same details as planet Earth.
The paper model is the same shape as planet Earth.
.
The diameter paper model is proportionally the same size as the diameter of planet Earth
Answer:
Venus????
Explanation:
The correct comparison of the paper model of the planet Earth to the actual planet Earth is The diameter paper model is proportionally the same size as the diameter of planet Earth. The correct option is 2.
This means that the size of the paper model's diameter is in proportion to the actual diameter of the planet Earth. In other words, the dimensions of the paper model are scaled down or reduced to represent the size of the Earth accurately. This is a common way of creating models to study or represent large objects like planets, as it allows us to visualize and understand their characteristics on a more manageable scale.
The use of scale allows scientists, educators, or anyone interested in understanding Earth's characteristics to work with a more manageable model while preserving the relative proportions and relationships of the planet's features. It also helps in making comparisons and understanding the magnitude of different features of the Earth in a more practical way.
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Sometimes prokaryotic cells are surrounded by a gelatinous, sticky substance. what is this structure called?
This structure is called glycocalyx.
Glycocalyx- The cell is surrounded by a thick gel-like meshwork called the glycocalyx, which acts as a physical barrier for anything attempting to enter. For instance, it's been shown that the glycocalyx is essential for guarding against pathogens getting inside cells.
Cell- The smallest unit in biology that can sustain life on its own and makes up all living things as well as the body's tissues.
Tissue- A collection of cells with similar structures and functions is referred to as a tissue. The intercellular matrix, a nonliving substance, fills the gaps between the cells. There could be a lot of this in certain tissues and not much in others.
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The connection across biological, cognitive, and socioemotional processes is most obvious in the two rapidly emerging fields of:_________
Most clearly demonstrated are the connections between biological, cognitive, and socioemotional processes in the following two quickly developing fields: Developmental social neuroscience and cognitive neuroscience.
Who is a neuroscience?A neuroscientist is interested in the functioning of the brain. After studying the brain, they conduct scientific experiments to attempt and find answers. Some neuroscientists focus their research on a particular area of study, such as neurological illnesses or the effects of brain trauma.
How long does it take to get a neuroscience degree?A Master's degree adds an additional one to two years to the three years required for a solitary undergraduate or combination degree. Three to four years full-time, but six or seven years if done part-time, are needed to get a PhD.
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When you breathe, the pressure inside the lungs is different than the pressure outside the lungs. this is an example of a(n)?
The pressure inside your lungs and the pressure outside them fluctuate as you breathe. An illustration of a pressure gradient is this.
What is an example of pressure gradient?The pressure gradient is the amount by which the atmospheric pressure drops in a location at a particular time. A pressure gradient is demonstrated by gale-force winds in one city changing to a moderate breeze after an hour. the rate of the pressure in space decreasing (gradient) at a specific period.How does pulmonary ventilation change with pressure gradient?Thoracic ventilation Because air moves down a pressure gradient, or from an area of greater pressure to an area of lower pressure, the difference in pressures is what drives pulmonary ventilation.
When breathing in and out, the respiratory airways restrict the flow of air. The air must be transported by the pressure gradient from the mount (or nose) to the pulmonary alveoli.
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Name the early-twentieth-century hypothesis that was at first rejected by geologists and the more comprehensive theory that later replaced it.
The theory of plate tectonics was at first rejected by geologists and the more comprehensive theory later replaced it.
What is continental drift theory?The continents were "drifting" over the surface of the planet, occasionally crashing into one another and into seas.
As we know,
Wegener's theory was largely rejected since he offered no explanation for how the continents may move.
The name of the theory was theory of plate tectonics.
Thus, the theory of plate tectonics that was at first rejected by geologists and the more comprehensive theory that later replaced it.
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The vital ability of an organism to take certain actions when changes occur in its immediate environment is called ________.
The vital ability of an organism to take certain actions when changes occur in its immediate environment is called Adaptation
What is Adaptation ?In biology, there are three related definitions of adaptation. First, natural selection, a dynamic evolutionary process, adapts organisms to their environments, improving their evolutionary fitness. Second, it is a state that the populace attained as a result of that process.
The streamlined bodies of aquatic fish and mammals, the light bones of flying birds and mammals, the long, dagger-like canine teeth of carnivores, and the long necks of giraffes for feeding in the tops of trees are a few examples. According to all biologists, organismal characteristics frequently represent adaptations.Learn more about Adaptation here:
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If m∠4 = 35, find m∠2. Explain.
35; ∠2 and ∠4 are alternate interior angles, so m∠2 = m∠4.
145; ∠2 and ∠4 are supplementary angles, so m∠2 = 180 − m∠4.
55; ∠2 and ∠4 are complementary angles, so m∠2 = 90 − m∠4
35; ∠2 and ∠4 are corresponding angles, so m∠2 = m∠4.
The correct answer is option 1.
From the accompanying photo,
Right triangle CAB has three sides.
Consequently, m1 = 90°.
Similarly, mACD = 90°
∠ACD = 90° = ∠ACB + ∠BCD
= m∠3 + m∠4 = 90°
Because m4 = 35°,
m∠3 + 35° = 90°
m∠3 = 90° - 35° = 55°
In the ABC triangle,
∠ACB + ∠CBA + ∠BAC = 180° [triangle property]
∠3 + ∠2 + ∠1 = 180°
55° + ∠2 + 90° = 180°
∠2 + 145° = 180°
∠2 = 180° - 145° = 35°
Because ABCDBC is a transversal,
The lines are referred to as transversal lines when a straight line crosses two or more parallel lines. Any time this transverse line crosses a coplanar line, alternate angles—also referred to as exterior or interior alternate angles—are created.
In light of this, ∠2 = ∠4 = 35° [Alternate Interior Angles].
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T who is at 41 weeks gestation is concerned when the primary care provider decides to induce labor. which reason does the nurse explain as the most important need for this procedure?
Risk for placental dysfunction.
The reason the nurse should explain as the most important need for this procedure is Risk for placental dysfunction.
The main goal of inducing labor in post-mature fetuses is to reduce problems caused by placental malfunction. The placental function declines with post-maturity, altering food and oxygen transport and raising the risk of hypoxia and hypoglycemia during the start of labor. The main justification for labor induction is this.What is placental dysfunction?A pregnancy problem known as placental dysfunction occurs when the placenta, which is responsible for supplying nutrients and oxygen to the baby' bloodstream, is unable to adequately nourish the growing fetus.Why does the placenta malfunction?If you smoke or use some types of illegal substances while you are pregnant, placental insufficiency may result. Your risk is further increased by medical disorders like diabetes, preeclampsia, and blood clotting issues.To learn more about inducing labor visit:
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Your lunch consists of an orange, wheat crackers and a glass of milk. Which part of your lunch will give you quick energy and which part will give you enough energy to get through the rest of the day?
EXPLAIN YOUR ANSWER
Answer:
Explanation:
Carbohydrates which are found in wheat crackers provide quick energy meanwhile lipids which are found in milk would provide the energy you need to get through the day
What is the highest level of protein structure in human insulin, which has two polypeptides of different mass linked by several disulfide bonds?
The highest level of protein structure in human insulin, which has two polypeptides of different mass linked by several disulfide bonds Quaternary structures.
The fundamental structure of a protein is only the arrangement of the amino acids in a polypeptide chain.In a medical environment, a doctor or nurse may also administer intravenous (into a vein) injections of human insulin solution. You will be closely observed by a doctor or nurse for side effects. Although it can reduce blood sugar levels, human insulin can not treat diabetes.Disulfide bonds are important because they control the stability and conformational dynamics of proteins. The case of proteins, which are frequently disulfide linked and must survive stresses resulting from their typical biological function, is particularly significant.To learn more about insulin.
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During ________, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
During anaphase the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
In order words, anaphase is one of the stages of cell division in mitosis when chromosomes are pulled toward the poles of the cell.
CellA cell can be defined as the simplest, structural and functional unit of life. In biology, there are two major groups of living organisms based on the numbers of cells they have. These two groups are as follows:
Unicellular organisms: They are organisms consisting of only one cells. That is, they are single celled organism and are capable of carrying out all life processes. Examples of single celled organisms include bacteria, nostoc, anabaena, oscillatoria and so on
Multicellular organisms: These are living organisms which possess two or more cells. There are many celled organism. Examples include lizard, snake, fish, elephant, man e.t.c
So therefore, during anaphase the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
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One study of newspaper reporting found that around ______ of homicides received the vast majority of all media attention.
One study of newspaper reporting found that around 5% of homicides received the vast majority of all media attention.
This is further explained below.
What are homicides?Generally, The common law legal word for a homicide that is judged by the law to be less responsible than murder is known as manslaughter.
It is often believed that the ancient Athenian legislator Draco created the difference between murder and manslaughter in the seventh century BC. Draco is credited with making this distinction.
In conclusion, According to the findings of one research that analyzed the reporting in newspapers, just around five percent of murders got the overwhelming bulk of media attention.
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complete question
One study of newspaper reporting found that around ______ of homicides received the vast majority of all media attention.
A. 10%
B. 5%
C. 20%
D. 15%