Several students measured the mass of a rabbit and recorded their
measurements in a table.
Student 1
Student 2
Student 3
Student 4
1.6 kg = 1,600 g
2,300 g
Between 1,000 and 1,500 g
1,750 g
The actual mass of the rabbit is 1,864.3 g. Which statement best describes
the accuracy and precision of their data?
A. Accurate but not precise

Correct answer-

Incorrect answers-

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Anatomical position, or standard anatomical position, refers to the positioning of the body when it is standing upright and facing forward with each arm hanging on either side of the body, and the palms facing forward. The legs are parallel, with feet flat on the floor and facing forward.

The benefit of the palms facing forward is that it makes the radius, and ulna, the bones of the forearm run parallel to each other from the elbow to the wrist.

The term is used in medicine and related fields when referring to the position of body parts in relation to each other. There are four main anatomical positions which are:- supine, prone, right lateral recumbent, and left lateral recumbent. Each position is used in different medical circumstances.

The prone is defined as "lying flat with the face downward" and supine as "lying on the back."

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Bone marrow aspiration symptom alerts the health care provider that this child might have acute lymphoblastic leukemia (all)

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Bone made up of calcium salts and not other salts, for example, iron salts because the presence of iron salts would strengthen bone but make it very heavy, requiring much larger muscles to move it. Calcium and collagen work together to make bones strong and flexible. Calcium salts provide rigidity to bones and teeth. Without mineral deposits in the bone, the organic extracellular matrix would be week .

About 99% of the body's calcium is stored in bones, and the remaining 1% is found in blood, muscle, and other tissues.70% of bone is made up of bone mineral called hydroxyapatite. Before the extracellular matrix is calcified, the tissue is called osteoid tissue.

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Homunculi of various morphologies can be seen in several species as a result of their divergent evolutionary histories. So there are differences in the sensory homunculus between giraffes and humans.

The structural properties of sensory homunculus

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Conventional genetic analyses of rRNA  sequence is not possible for prions because they don't contain nucleic acid.Prions do not contain genetic material such as - DNA and RNA.

The unique traits and genetic material information are encoded with the conformation structure and modification of protein.Prions which are responsible for transmissible sponginess encephalitis  is mammals which all known prion disease affect the neural tissues.

There are 253 amino acids exist in multiple conformations and isoform which is found in healthy organisms, most extensively studied proteins. Prions are not destroy easily and remains intact in the presence of radiation , disinfectant and extreme heat.

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Exfoliating agents found in pedicure scrubs are made of sea sand, ground apricot kernels, pumice, quartz crystals, jojoba beads, and polypropylene beads.

These are substances which are characterized by their gritty texture and are applied on the skin for the purpose of removal of old portions so as to enable new ones reemerging.This process in referred to as skin renewal and makes people look younger and healthy.

Polypropylene beads is referred to as a common thermoplastic resin and is also used as an exfoliating agent in pedicure scrubs due to its gritty nature and zero side effects when applied on the skin of individuals.

Other substances which are used as pedicure scrubs include sea sand, ground apricot kernels etc thereby making it the most appropriate choice.

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Intellectually Disabled-Profound. So, she requires close supervision.

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Small intestine: It is an organ that helps in the digestion and absorption of nutrients like vitamins, minerals, carbohydrates, fats, proteins, and water from the ingested food.

The absorption of nutrients in the small intestine is done by villi which can be described as small finger-like projections on the interior surface of the small intestine. They increase the surface area for the absorption of nutrients from the food and transport it to other parts of the body where they can be consumed accordingly.

Celiac disease: It is a digestive disorder caused due to gluten in which villi of the small intestine in the inner lining of the small intestine are destroyed due to which the nutrients can not be absorbed properly from the food and thus the body faces a deficiency in nutrients and lacks energy as they cannot be extracted properly from food.

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Cytotoxic t-cells are able to recognize infected body cells because the infected cells display foreign antigens.

The helper T cell and the cytotoxic T cell are the two main subtypes of T cells. Helper T cells, as their names imply, "assist" other immune system cells, whereas cytotoxic T cells "kill" virally-infected cells and tumors. The TCR cannot directly bind antigen, unlike an antibody.

Killer T cells are also known as "cytotoxic" or "cytolytic" cells because they have unique molecular weapons that allow them to attack and kill other cells that are showing targets they are familiar with, such as a virus-infected cell or even a malignant cell. The processed cancer cell antigen, which is solely presented by MHC-class I, must be recognized by cytotoxic T lymphocytes. Helper T cells binding to a processed antigen on the same dendritic cell as the MHC-class II presenting a processed cancer cell antigen enhances cytotoxic T-cell complete activation.

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The fact that both bacteria and the fungus Penicillium are cells with cell walls and membranes is one of the ways in which they are similar. The fact that both bacteria and the fungus penicillium are microorganisms is another commonality between them.

Bacteria are common, largely free-living organisms that frequently only have one biological cell. They make up a significant portion of the prokaryotic microbial kingdom. Bacteria, which are typically a few micrometers long and were among the first life forms to appear on Earth, are found in the majority of its habitats.

Any member of the eukaryotic group of organisms, which also includes the more well-known mushrooms and microbes like yeast and mold, is referred to as a fungus.

The Penicillium and bacteria have a relationship that is The secretion known as penicillin, which is produced by Penicillium fungus, is exceedingly hazardous to bacteria. This discovery served as the inspiration for penicillin, the first real antibiotic.

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The only explanation in this situation is that the parent rocks of the marble and slate were different. This indicates that the region once held both shale and limestone before metamorphism.

In reference to rocks, it denotes those that have undergone metamorphism—rocks that may have started as sedimentary, igneous, or another type of metamorphic rock but has since undergone "recrystallization" and taken on an entirely new form—under new temperature and pressure conditions.

For instance, when limestone is heated and compressed, it changes into marble, a more coarsely crystalline and occasionally banded rock.

When shale, a clay-rich, soft rock, is compressed, slate, a tougher rock, is created.

The alterations are frequently even more remarkable, resulting in the formation of new minerals, including garnet, mica, and tourmaline (as seen in schist).

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Answer:

no,it will always stay at the bottom because it is the supplier of energy for consumers. It is where the food chain process starts.

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In a reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron. The answer is motor neurons.

The reflex arc refers to the sequence of events since the body receives an external stimulus until it reacts.

In general terms,

1) A stimulus of varying nature reaches the body.

2) The peripheric nervous system -PNS- receives the stimulus and sends this information to the central nervous system -CNS-.

3) The CNS processes the information and sends another signal as a response to the stimulus.

Five elements compose the reflex arc, which are receptors, three types of neurons, and effectors.

The neurons involved in the mechanism are:

• Afferent or sensorial neurons

• Interneurons

• Efferent or motor neurons

Mode of Action:

The stimulus reaches the body and is received by the specialized sensory receptors.

Afferent neurons, placed in the dermis and epidermis, receive this information from receptors, react and send it to the central nervous system as nerve impulses.

Interneurons in the CNS, process the information and send a motor response.  

Efferent neurons carry the response from the CNS to the effector organs, which might be either a muscle or a gland.

Finally, the target tissue responds to the stimulus as a contraction -muscle-,or as hormones release -gland-.

A motor neuron is formed by a cellular body, dendrites (cytoplasmic extensions that receive stimuli from other cells), and a long axon that is capable of conducting the electrochemical signals.

The axon brunches out into several extensions when it approaches the muscle.

At the end of each brunch, the axon is inserted in the muscle fiber surface, composing neuromuscular join.

This is the last part of the NS involved in the process before the muscle contracts.

After a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron, and from there to the effector.  

The corrct answer is motorneuron.

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This finding refers to Virulence of Rabies Virus (RV).

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When considering the comfort and safety of passengers, women ignored because of inequalities.

When considering the comfort and safety of passengers, women ignored in this case because our society give more preference to men. Our society has dominated by men while on the other hand, women are ignored many times. We did not give more jobs to women or other comforts and safety which is a dark side of our society.

So we can conclude that when considering the comfort and safety of passengers, women ignored because of inequalities.

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The cancer has not invaded other tissues is the conclusion which can be made if the cell margins of a biopsy are clear when observed under a microscope in this scenario.

This medical procedure involves taking sample of cells or tissues from parts of the body and observing it under a microscope.

The microscope function is to enlarge the objects which are positioned on the objective lens thereby making it possible for them to be seen more clearly and accurately.

If the cell margins of a biopsy are clear when observed under a microscope, it means the cancer hasn't invaded other parts while in a scenario where the cell margins are crowded then it depicts the presence of cancerous cells thereby making it the most appropriate choice.

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The pressures in the atria and ventricles that would cause the AV valves to open. This is when the pressure in the atria would be greater than the pressure in the ventricles.

The pressure drops below 120 mmHg as the ventricles relax, causing the semilunar valves to close. As the pressure continues to fall, the atrial pressure exceeds that of the ventricles, and the atrioventricular valves open. Meanwhile the blood is being pumped around the body.

With this information, we can conclude that the pressure in the atria would be greater than the pressure in the ventricles.

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The two main phases of cell cycle are the interphase and the mitotic phase.

The given diagram represents Metaphase stage of cell cycle.

To calculate the percentage of cells during each stage, first count the number of cells in each phase. Then, divide the total number of cells in each phase by the total number of cells present and multiply by 100.

There are 28 cells in total.

Out of which 21 are in Metaphase and 7 cannot be identified.

Percentage of cells in metaphase= (21/28)* 100 = 75%

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The crowding out effect is an economic theory arguing that rising public sector spending drives down or even eliminates private sector spending. Crowding out of investment is defined as a situation when increased interest rates lead to a reduction in private investment spending such that it dampens the initial increase of total investment spending is called crowding out effect. The impact of crowding out can be increased government borrowing and spending causing a reduction in private spending. Because government borrowing increases the cost of private loans and uses up capital that may have been deployed elsewhere, businesses and individuals don't borrow or spend as much money.

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Answer: Jack wants to borrow money to create a cowboy-themed inflatable bounce house for kids called "Wild Wild West." However, the government is running a deficit which has increased interest rates so much that Jack can no longer afford to borrow the money.

Your nerves somehow allow this signal to pass through and, like magic, it causes that large muscle to contract.   If it's okay, we'll concentrate on it as the question directly refers to the muscular contraction. We move ahead to the motor neuron, where the brain's action potential has already reached the muscle. Motor units, which are made up of an upper and a lower motor neuron, are used to control muscles. The top motor neurons, or the neuron that transmits signals from the brain, are represented by the tracts above. After connecting to lower motor neurons, upper motor neurons link to the muscle. The basic structure of your muscles is fibers inside fibers inside fibers. Sarcomeres, the smallest unit, are made up of sections that are separated by Z-lines. We have two filaments, actin and myosin, between the Z-lines. The M-line is where Myosin is connected, while Actin is a long, thin filament attached to the Z-line. The actin will be pulled by the myosin, which will cause the Z-lines to constrict inward toward the M-line. The bigger structures will follow if many of these tiny fibers do this at once, triggering the contraction of the entire muscle. The Sliding Filament Model of contraction is used to describe this.

A single Actin and Myosin pair appears quite similar if we zoom in on it. Myosin and actin do not contact when your muscles are at rest, yet they have a strong attraction for one another (they really want to touch). If not for two proteins (tropomyosin and troponin) linked to the Actin filament, they would touch. As we are still awaiting a signal, we slightly zoom out.

An action potential is sent by the lower motor neuron, which causes Acetylcholine to be released into the synapses. This results in an inflow of sodium, which changes the voltage and spreads the signal.

The action potential is no longer in the neuron but rather within the muscle. The Sarcolemma is struck by the action potential as it travels through the muscle cells.

The Sarcolemma has tubes that penetrate the cell deeply (T-Tubules). The Action Potential is sent at the Sarcomeres via these tubes.

Calcium is continually being pumped out of the cell by the Sarcoplasmic Reticulum, which houses the sarcomeres (these pumps use ATP as energy). Additionally, it has voltage-gated calcium channels that are still closed that line it.

The Voltage Gated Calcium channels open when the T-Tubules produce an action potential, allowing calcium to flood the cell.

The two proteins that surround the actin are now activated by calcium. When calcium attaches to troponin, a shape shift occurs (as proteins do when they bind). The active strands are revealed as the troponin pulls tropomyosin in its direction.

Now that the Actin sites are revealed, the Myosin is free to bind to them. However, myosin, which used some ATP and broke it down into ADP and phosphate, is the only protein that can actually do this. This myosin, which has been "charged," extends. It remains put, clinging to ADP+Phosphate like a loaded weapon.

As a result, the two Z-lines are pulled toward the centre by the Myosin, and the sarcomere contracts.

Since the Sarcoplasmic Reticulum's calcium pumps are actively pumping calcium out, calcium ultimately dissociates from Troponin. Actin is rendered unavailable to myosin as a result of the protection being reset. The fun is gone now because Myosin can no longer link to the actin, and when an action potential occurs, the cycle restarts.

And that’s how a signal from the nervous system, an action potential, can cause a muscle to contract. Isn’t nature cool?

Marfan syndrome is an autosomal dominant condition.

Connective tissue, or the fibers that support and anchor your organs and other body components, is harmed by Marfan syndrome, a genetic disorder. Most frequently, the heart, eyes, blood arteries, and skeleton are impacted by Marfan syndrome.

It happens because one healthy copy of the FBN1 gene is not sufficient to sustain the normal development of connective tissue.

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Answer:

A. genes located on the same chromosome and inherited together

Explanation:

linked genes are genes that are close together and end up being inherited together due to their closeness even after chromosomal crossover

ADH increases arteriole constriction and tubular permeability to water

Vasopressin, also referred to as antidiuretic hormone (ADH), is a hormone secreted by the posterior pituitary gland. Arteriole constriction and tubular permeability to water are both increased by ADH. Calcitonin and parathyroid hormone levels in the blood regulate calcium equilibrium (PTH). the hormone that aids in blood vessel constriction and aids the kidneys in regulating the body's salt and water balance. This aids in regulating both blood pressure and urine production.

Sensors (baroreceptors) in the heart and big blood vessels can identify a drop in blood volume or low blood pressure that happens after dehydration or a hemorrhage. These encourage the secretion of anti-diuretic hormones.

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Answer:

h(x)=0.5x+15.

Explanation:

Given that the first differences remain constant, this function is linear. Thus, we can use y=mx+b.

'b' in this case is 15 inches, as that is the original height of the plant.

The slope (m) would be 0.5, such that time is the independent variable and height is the dependent variable (which should always be the case).

Using this information, we can create a function to model height:

h(x)=0.5x+15, where x represents each week.

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Its A frequently

explantation: the higher the frequency wave  the higher the pitch of the sound

The drug lithium is particularly used to treat bipolar disorder and severe depression.

Chronic mood disorders like bipolar disorder lead to abrupt changes in mood, energy, and behavior.

The primary symptoms of bipolar disorder are manic and hypomanic episodes, and the majority of those who have them also experience depressed periods.

One of the most popular and well-researched drugs for treating bipolar disorder is lithium.

The frequency and intensity of mania are both lessened by lithium.

Additionally, it might lessen or shield against bipolar depression.

Lithium can considerably lower the risk of depression, according to studies.

Hence, The drug lithium is particularly used to treat bipolar disorder and severe depression.

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