A student claims that he can correctly identify whether a person is a business major or an agriculture major by the way the person dresses. Suppose in actuality that if someone is a business major, he can correctly identify that person as a business major 87% of the time. When a person is an agriculture major, the student will incorrectly identify that person as a business major 16% of the time. Presented with one person and asked to identify the major of this person (who is either a business or an agriculture major), he considers this to be a hypothesis test with the null hypothesis being that the person is a business major and the alternative that the person is an agriculture major.

During prophase of meiosis l happens the duplicated homologous chromosomes pair up and exchange their chromatid segments.

Meiosis I begins with prophase I, a phase marked by the progressive condensation of chromosomes, exchange of genetic material between non-sister chromatids, formation of the spindle (bundle of microtubules), breakdown of the nuclear envelope and the beginning of the migration of homologous chromosomes towards to the metaphase plate.

In this case, is correct to say that the duplicated homologous chromosomes pair up and exchange their chromatid segments occurs in meiosis I.

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Neutrophils is sign of body infection.If you have high neutrophils which is present in human blood then its is known as Neutophilia.

Its a type of white blood cells (WBC) its an important part of immune system which helps body to fights with infection. When micro organisms such as bacteria or viruses are enter in human body then these neutrophils are the first immune cells to respond.

Under normal conditions, the number of neutrophils in healthy person is between 2,500 to 6,000 .If neutrophils are increases of deceases in human body then doctor suggested antibodies.It may eventually go away, or remain as a life - long condition.

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The correct matching is as follows:

Blood vessels are those vessels a re tubes in which blood in the body flows.

The blood vessels of the body include, veins, arteries and capillaries. Larger blood vessels include the aorta

The correct matching is as follows:

In conclusion, blood vessels transport blood throughout the body.

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The is true that populations are dynamic and respond to variations in their environment (option D).

A population is the collection of organisms of a particular species, sharing a particular characteristic of interest and living in a given area.

However, populations of organisms are dynamic in nature, meaning that they can change over time in response to environmental conditions.

Therefore, it is true that populations are dynamic and respond to variations in their environment.

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The statement is True.

Dyspnea has a multi-factorial origin, resulting from bronchospasm or vasospasm, disturbances in pulmonary circulation, immobility or diminished respiratory excursion of the diaphragm, atelectasia and/or pulmonary infarction, anoxia, or impairment of cardiac function.

Dyspnea, chest pain, and cough are the most frequent symptoms of Pulmonary Embolism(PE), while fever, tachycardia, abnormal pulmonary signs, and peripheral vascular collapse are the most common physical findings.

Pulmonary embolism (PE) occurs when a blood clot gets stuck in an artery in the lung, blocking blood flow to part of the lung. Blood clots most often start in the legs and travel up through the right side of the heart and into the lungs. This is called deep vein thrombosis (DVT).

Clot in the lung circulation (pulmonary embolus): Breathlessness is usually sudden and associated with rapid breathing and may be accompanied by chest pain.

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The dicer enzyme processes dsRNA and forms siRNAs, which suppress the expression of target genes by cutting mRNA. 1) siRNA 2) RNA.

siRNA means small interfering RNA. This is a silencing RNA molecule involved in the RNA interference mechanism, intervening in the expression of a specific gene.

siRNAs are complementary double-stranded RNA molecules composed of about 20-21 nucleotides. siRNA originates from a long double-stranded RNA (dsRNA).

The dicer enzyme cuts dsRNA molecules and produces siRNA. siRNAs suppress the expression of target genes when cutting messenger RNA.

siRNAs suppress the expression of target genes by cutting the complementary messenger RNA (mRNA) into two halves. This is accomplished by the interaction of the siRNA with the RISC complex (RNA-induced silencing complex).

The two mRNA halves are later degraded by the cellular machinery, leading to the suppression of the gene expression.

siRNAs also participate in other pathways related to RNAi, such as in antiviral defense or in the chromatin structure organization.

RNA interference is a mechanism of eukaryotic gene regulation. In this mechanism, the enzyme dicer cuts dsRNA into smaller fragments called (1) siRNA, which form a complex with RISC and degrade specific (2) RNA.

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According to  the Dalton's atomic theory, we can see that there are two atoms that compose the water molecule.

The atomic theory states that matter is made up of small particles called atoms. These atoms are capable of independent existence and can take part in chemical reaction.

From the Dalton's atomic theory, we can see that there are two atoms that compose the water molecule. These atoms are hydrogen atom and the oxygen atom.

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Answer:

C

Explanation:

A law is an observation; a theory is the explanation of that observation.

source: http://www.differencebetween.net/miscellaneous/culture-miscellaneous/difference-between-theory-and-law/

In science, a scientific law is a descriptive statement or mathematical equation that describes a natural phenomenon or pattern consistently observed in the natural world.

The correct statement is option c.

The statement explains what happens and is often based on empirical evidence obtained from repeated observations and experiments.

On the other hand, a scientific theory is a well-substantiated and comprehensive explanation of some aspect of the natural world. It goes beyond mere observation and provides an understanding of why and how a particular phenomenon occurs. A scientific theory is supported by a substantial body of evidence, and it can be used to make predictions about future observations or experiments.

Scientific laws and theories are both essential components of scientific understanding, and they are not ordered in terms of coming before or after each other.

Hence , C is the correct option

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When cells makes a new compound, such as glycogen from many glucose molecules, usable energy is needed and is obtained by removing a phosphate group from ATP, producing energy plus ADP plus phosphate.

This is referred to as adenosine triphosphate and is the energy currency of the cells.

This is  usually formed from the synthesis of ADP and a phosphate group thereby making it the most appropriate choice.

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DNA is single-stranded. There are two types of DNAs, fiber polymer(ssDNA) and double-stranded polymer (dsDNA). Consequently, the polymer binding proteins typically contain fiber DNA-binding proteins (SSBs) and double-stranded DNA-binding proteins(DSBs).

Single-stranded DNA binding proteins (SSBs) and double-stranded DNA binding proteins (DSBs) are two different types of DNA binding proteins that participate in many biological processes.

While SSBs typically serve roles in DNA replication, recombination, and repair, among other processes, DSBs typically operate as transcriptional factors to control the expression of the genes. For the study of protein functions, knowing a DNA binding protein's binding specificity is useful.

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During bleeding, both formed elements (platelets, white blood cells, red blood cells) and plasma are lost from the circulatory system. They are lost proportionally, so initially there is no change in hematocrit.

Hematocrit is the percentage of the blood volume made up of elements (Hct = cell volume/blood volume). During dehydration, only water and electrolytes are lost, and the number of cells remains constant - the same number of cells in a smaller volume leads to an increase in hematocrit. When the body tries to restore blood volume, the first thing to recirculate is water from the ECF and this increases the amount of water without increasing the amount of red blood cells, so the compensatory mechanism causes the hematocrit to fall.

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According to the research, most mycoses are difficult to treat because to determine the responsible fungus it is necessary to culture the lesions.

They are skin conditions resulting from parasitization by "fungi"; these are vegetables that do not carry out the phenomenon of photosynthesis.

They are caused by fungi belonging to the genera Epidermophyton, Microsporum and Trichophyton.

Therefore, we can conclude that according to the research, most mycoses are difficult to treat because to determine the responsible fungus it is necessary to culture the lesions.

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Postmortem and positron emission tomography have shown that microglial cells play a pathophysiological role in schizophrenia.

We postulated that the previously mentioned glutamatergic impairments in the hippocampus of schizophrenia patients may be related to the microglial synthesis of quinolinic acid (QUIN), an endogenous N-methyl-d-aspartate receptor (NMDAR) agonist. Reduced microglial immunoreactivity for endogenous NMDA receptor agonist quinolinic acid in the hippocampus of schizophrenia patients. We measured the number of QUIN-immunoreactivity microglial cells in the CA1, CA2/3, and dentate gyrus (DG) regions of the posterior hippocampus formation in schizophrenia patients and matched controls. HLA-DR, a popular microglial surface marker, was further immunostained in nearby histological sections. In the CA1 hippocampus sub region of schizophrenia patients compared to controls, fewer QUIN-immunoreactivity microglial cells were seen (left p=0.028, right p=0.018). In the CA2/3 and DG areas, no notable diagnosis-dependent alterations were seen. Potential confounding factors such as age, disease duration, autolysis time, psychotropic medication, and hippocampus volume were taken into account while analyzing these results. There were no variations in the overall density of microglial cells linked to diagnosis (HLA-DR expression). Our results imply that schizophrenia is related with decreased microglial QIUN content in the hippocampus CA1 region. We surmise that this connection could be a factor in schizophrenia patients' hippocampus' decreased glutamatergic neurotransmission.

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The percentage of the orignal uranium that remains after two half-lives is 25%

N = N₀ / 2ⁿ

N = 100 / 2²

N = 100 / 4

N = 25%

Thus 25% of the original sample remains

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Injury to cervical vertebra c 3-c 4 is particularly problematic because C) the phrenic nerve that serves the diaphragm receives its fibers from here.

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From the table, we can see that  P and Q represent water. (Option B)

We know that the liquid range of water is 0 - 100 degrees Celsius. Within this temperature range, water exists as a liquid substance.

Looking at the table we can see that the temperatures of P and Q are 50 and 100 degrees Celsius respectively hence both P and Q represent water.

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Answer:

bones protect vital organs

Explanation:

there are approx 200+ bones only on average, hence the first is out

bike is produced in the bike duct which acts to break down fats into simpler substance for the body to intake

red blood cells are produced and stored in the bones and not carbohydrates

the smallest bone is found in your ear, hence the last one is out

A ""hot spot"" appears darker than other areas on a bone scan and indicates an area of increased metabolism.

Nuclear imaging is used during a bone scan to assist identify and monitor various bone diseases. In order to observe internal structures like bones, such as the bones in the body, nuclear imaging uses small amounts of radioactive chemicals (radiotracers), a particular camera that can detect the radioactivity, and a computer. These could be metabolic or other chemical activity levels. Hot spots are regions with higher intensity. These might exhibit high levels of radiotracer concentrations as well as intense chemical or metabolic activity.

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Answer: because this has a relation with the food chain of lower levels like herbivores.

Explanation:

as you know plastids are the main source of food production in plants. As they meet the food requirements in plants but animals don't have it so the lower levels like deer who eat grass depend on these plastids of plants to fulfill the need for food and nutrients as animals cant process or made their food. and carnivores fed on these herbivores for their food consumption. so you can indirectly relate this statement to the food chain. and this is how animals depend on plastids found in plants.

A function prototype eliminates the need to place the function definition before all calls to the function.

The variable that are defined inside the function but not out side the function are local variable and global variable . A static variable that is defined within a function is initialized only once, the first time the function is called. A function prototype is a definition that is used to perform type checking on function calls when the EGL system code does not have access to the function itself. We prototype the function to tell the compiler about the number of arguments and about the required datatypes of a function parameter, it also tells about the return type of the function.

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A new animal is discovered that is more sensitive to pain in its toes than its fingers. If we were to examine the brain of this animal we would notice that the parietal lobe would have more brain area devoted to the toes than the fingers.

The parietal lobe is one of the major lobes in the brain, roughly located at the upper back area of the skull.It is found on both the left and right hemispheres of the cerebral cortex.

Somatosensory information from the body, such as touch, pain, temperature, and the perception of limb position, is processed by the parietal lobes. The parietal lobes play a role in integrating data from several modalities, just like the temporal lobes do. Parietal lobe houses the primary somatic sensory cortex, a part of the brain that processes information from various parts of the body.

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Answer:

Moisture, hormone production, and enzyme activity. For seeds to germinate, they need to imbibe water. For this to occur, sufficient moisture must be present. A warmer climate may increase evaporation and decrease moisture, which would negatively affect germination.

Answer: c. Bird droppings that contain seeds from a different location

Answer:

Across the Chesapeake Bay watershed, 23 percent of the land is used for agriculture and almost 12 percent has been developed. Most of the remaining land is forested.

Cardiac triggering monitors cardiac motion by coordinating the rf excitation pulse with the R-wave of cardiac systole.

A heart monitor is useful for measuring the rate of your beats per minute, especially if you do some physical activity. Continuous monitoring during practice helps to manage the functioning of the organism, visualizing when the heart beats increase and decrease

Through the electrocardiogram (ECG), the multi-parameter vital signs monitor follows the patient's heartbeat, which are captured through the ECG cable that is connected to some points on the patient's chest.

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Answer:

Angiosperms

Explanation:

Answer:

A. Angiosperms

Hope this helps!

Explanation:

On each side of the skull, the Squamosal suture joins the parietal bone with the temporal bone.

The squamosal or squamous suture is the cranial suture between the temporal and parietal bones bilaterally. From the pterion, it extends posteriorly, curves inferiorly and continues as the parietotemporal suture. The squamous suture is the connecting joint in the skull between the parietal bone and the lower portion of the temporal bone called the par squamosa. Edges of the squamous suture overlap in a scale-like formation. It is located just above the ears on both sides of the head. The squamous suture forms the joint of the skull between the squamous part of the temporal bone and the inferior aspect of the parietal bone.

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Proportion of the population will be heterozygous is 0.48

Let's start with the basic Hardy-Weinberg equations first.

p + q = 1 and p^2 + 2pq + q^2 = 1

With "p" being the dominant allele and "q" being the recessive allele

We know that 16% (or 0.16) show the recessive trait. This means that the fraction of the population with the recessive trait, q^2 is 0.16

With the value for q^2, q can be calculated

What follows is that q = 0.4

With this knowledge "p" can be calculated 1 - q= p

which results in "p" being 0.6

This 0.6 is the frequency at which the dominant allele is present in the population

heterozygous = 2pq = 2 (0.6 x 0.4) = 0.48

Hence, proportion of the population will be heterozygous is 0.48

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The process seen in the image is hay harvesting, which is widely used as fodder.

Hay is a viable alternative to be used as fodder (for animals to feed in the troughs) if there is not enough pasture or the climate is unfavorable for grazing. It is also used for animals that must be kept in the stable or barn (eg when the females are pregnant).

With this information, we can conclude that Hay is a mixture of mown and dried plants that can be used as fodder.

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The coagulation pathways that begins with the release of tissue factor from damage tissues is Extrinsic pathways. Its is a pathway of blood coagulation activated by endothelial tissue .

The clotting of blood is two pathways - intrinsic and extrinsic pathways.Extrinsic pathway is activated by any external trauma or external injury which causes blood to escape from the tissues.

Coagulation pathways is path which allows for rapid healing of injury and prevent from bleeding or other bacterial infection.coagulation also known as clotting , the process by which blood change into gel from liquid.This mechanism of coagulation involves activation, adhesion and aggregation.

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