Nonpreemptive kernels have a single active process at a time. Therefore, race situation scenarios are not possible in nonpreemptive kernels. If preemptive is properly designed to ensure that shared kernel data is devoid of race circumstances, it is race-free.
An illustration of a race condition is when a data structure updates a list of open files in a system when a new file is closed or opened. In this scenario, opening two files simultaneously would cause the list to receive two separate updates, which could lead to race situations.
Difference between preemptive and nonpreemptive kernaals ?It is a procedure that might be immediately changed. In comparison to non-preemptive kernels, it is more suited for real-time programming. Preemption is typically permitted, even in kernel mode. Responsive time is deterministic and is more responsive as compared to non-preemptive kernel.
It is a process that keeps running indefinitely until it has handled all execution handlers or willingly gives up the CPU. Compared to a preemptive kernel, it is less suited to real-time programming. Preemption of kernel mode processes is typically not allowed. In comparison to a preemptive kernel, response time is less responsive and nondeterministic.
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At a chemical synapse, the release of neurotransmitter occurs in response to a graded depolarization of the synaptic terminal. True or false?.
Answer:
True: Neurotransmitters are released at chemical synapses in reaction to a gradual depolarization of a synaptic terminal.
The basic building block of the neurological system is indeed the neuron. A junction known as a synapses connects neurons in the neurological system. Neurotransmitters, which are released into synapses by neurons, are used for communication.
A stimulus that causes this nerve's resting membrane potential activates a presynaptic neuron. An action potential is then carried by the presynaptic nerve. The chemicals called neurotransmitters are being secreted into synapses together with action potential after passing via synaptic terminals.
Synaptic terminals get depolarized as a response of action potentials travelling thru the axon at those terminals. Depolarization causes the synaptic ion channels to open. In light of this, we may state that within a chemical synapse, neurotransmitters are released in response to a gradual depolarization of the synaptic terminal.
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An interdisciplinary science involving biologists, chemists, and biochemists in the study of genes and the proteins they encode is called ______.
Molecular biology is an interdisciplinary science that involves biologists, chemists, and biochemists in the study of genes and the proteins they encode.
In Molecular biology, we read mostly about the nucleic acids (DNA & RNA) and proteins which are essential for life processes. This emerged as a different field in the 1930s and developed out of biochemistry, genetics, and biophysics and today it remains closely associated with these fields only. Its application is used in the materials industry, in the development of new energy sources, in forensic engineering, and in improvement of the food and energy industry. It helps in collecting and understanding data on the genome sequence of living organisms.
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Which conditions may result from immunoglobulin ige antibodies on mast cells reacting with antigens? one, some, or all responses may be correct.
The conditions that may result from immunoglobulin ige antibodies on mast cells reacting with antigens is allergic condition which can be acute or anaphylaxis.
Immunoglobulin IgE is the type of antibody which reacts to the allergy that occurs in the body. When any allergen like pollens enter in the body the IgE will travel to the cells called mast cells or basophils cells which releases chemicals called histamine that produces the allergic response in the body.
Sometimes the body may even react to non harmful particles like food items and pollen grains and produces immune response and inflammatory action against them.
Allergic condition are the abnormal responses of the immune system against foreign particles.
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Through which cellular interactions are the cells of the stratum basale firmly attached to the plasma membrane?
The stratum basale is a single layer of cuboidal basal cells attached to the basement membrane by hemidesmosomes that contain integrins. Adjacent cells are attached by desmosomes that contain cadherins
What is plasma membrane ?The membrane that divides the interior of the cell from the external environment is known as the plasma membrane, sometimes known as the cell membrane, and it is present in all cells. A cell wall is affixed to the plasma membrane on the exterior of bacterial and plant cells.
The inner cell organelles and the exterior environment are physically separated by the plasma membrane. Only a limited range of molecules can enter and exit the cell through the selectively permeable plasma membrane.Learn more about Plasma membrane here:
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Diatoms, such as members of the genus navicula, belong to which major lineage of eukaryotes?.
Diatoms, such as members of the genus navicula, belong to stramenopila major lineage of eukaryotes.
Stramenopile:- Stramenopiles are group of organisms, that consists of stiff tripartite external hairs and flagella. Stramenopile is also known as heterokonts. It has both photosynthetic and nonphotosynthetic cells. Diatoms, chrysophytes, brown algae and some protozoa are included in the stramenopila kingdom. As stramenopiles are neither fungi, animals nor plants, they are eukaryotes.
Navicula:- Navicula is a genus of diatom algae, whose cells are boat-shaped.
Thus we can conclude that, diatoms such as members of the genus navicula, belong to stramenopila major lineage of eukaryotes.
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Which division of the autonomic nervous system arouses the body and mobilizes its energy in stressful situations?
Answer:
The sympathetic nervous system (SNS) is the division of the autonomic nervous system arouses the body and mobilizes its energy in stressful situations.
Explanation:
The SNS is a part of the central nervous systems which are responsible for producing reflex cardiovascular system modifications as well as localised changes (such sweating in reaction to a rise in body temperature). The defence response, which is a broad rapid reaction, is produced when the SNS is fully engaged under stress. Large amounts of adrenaline are released from either the adrenal gland during this response, which is also characterized by a rise in cardiac function, heart rate, as well as skeletal muscle dilatation as well as pupillary dilation, bronchial dilatation, and piloerection. The ultimate result is to have the person ready for possible danger. Together with additional neurological or hormonal reactions to stress, such as increased corticotropin as well as cortisol release, the SNS acts.
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Drag each tile to the correct location on the table.
Along with the kidneys, the ureters, bladder, and urethra make up the urinary system. Match each function or description to the appropriate structure.
hollow, saclike organ
connected to the
kidneys
narrow duct that
connects to the
bladder
muscular ducts that
connect the kidneys
and bladder
transports urine by
peristaltic action
from the kidney to
the bladder
transports urine from
the bladder to outside
of the body
holds urine
The organs of the urinary system include the kidneys, renal pelvis, ureters, bladder, and urethra. The body absorbs nutrients from food and converts them into energy.
Ureters are small tubes or conduits that connect the bladder and kidneys. Urine travels from the kidneys through the ureters to the bladder. The urethra is a tubular passage that connects the bladder to the outside of the body and allows urine to exit the body.
The urinary system consists of the kidneys, ureters, bladder, and urethra. The kidneys make urine and are responsible for other functions attributed to the urinary system. The ureters carry urine from the kidneys to the bladder. The bladder is a temporary reservoir for urine.
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When forming a semi-solid gel such as gelatin, which molecules does the process of protein coagulation entrap?.
Answer:
When forming a semi-solid gel such as gelatin, water molecules does the process of protein coagulation entrap.
Explanation:
Since the proteins that make up gelatin, which is mostly generated from collagen, are significantly bigger than typically dissolved different molecules but are uniformly distributed all across the water, gelatin is just a colloid once it is dissolved in liquid. It is particularly a solution, a colloid that consists of solid particles spread throughout another material. The distributed phase refers to the inferior component of a colloid, in this example gelatin. Gelatin is just a liquid while it's heated and turns into a gel when it's cold. Another sort of colloid is a gel, which is created when a liquid is spread by a solid. The gelatin gel may be made liquid again by heating it. Furthermore, any colloid contains extremely big particles in solution. Since organic molecules may be much bigger than the majority of inorganic molecules, colloidal particles are particularly prevalent in biomolecules.
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Which type(s) of bond(s) is (are) found between atoms within hydrocarbon molecules?
Answer:
hydrogen bondingcovalent boundingVander waals boundingmetallic boundingionic boyionic boundingThe dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.
a. true
b. false
Yes, it is true that the dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.
The deeper layer of the dermis is known as the reticular layer. It is made up of collagen and elastic fiber-containing thick, uneven connective tissue. Adipocytes, hair follicles, sebaceous glands, sudoriferous glands, and nerves are also present in the reticular layer. The dermis, also known as the corium, is a layer of skin that lies between the epidermis (along with which it forms the cutis) and subcutaneous tissues. It shields the body from strain and stress and is largely formed of dense, wavy connective tissue. It is divided into two layers: the reticular dermis, which is thicker and deeper, and the papillary area, which is superficial and adjacent to the epidermis.
The dermis and epidermis are securely joined by a basement membrane. The structural components of the dermis are collagen and elastic fibers.
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The bladder is in the _____ region. a. hypogastric b. right lumbar c. left lumbar d. epigastric
The bladder is in the hypogastric region.
Hypogastric Region- The structures around the pelvic bone are located in the hypogastric area. These include the prostate in men and the womb and ovaries in women, as well as the bladder, a section of the colon and rectum, the anus, and several reproductive system organs.
Bladder- A little above and behind pubic bone in the pelvis, the urine bladder is a muscular sac. The bladder is roughly the size and shape of a pear when it is empty. The kidneys produce urine, which then passes via capillary called ureters and into the bladder. Urination can be restricted and rare because to the bladder's ability to hold pee.
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Systemic blood pressure is determined by which factor(s)? (select all that apply.)
The factors of systemic blood pressure are,
-Heart rate
-Stroke volume
-Cardiac output
-Systemic vascular resistance
What causes systemic blood pressure?
Constriction of the tiny arteries is typically what raises systemic (or body) blood pressure (arterioles). As a result, the peripheral resistance to blood flow rises, increasing the stress on the heart and elevating arterial pressure. Both the greatest (Systolic) and lowest (Diastolic) points of blood pressure are recorded.
In most cases, systemic hypertension goes unnoticed. The disease is sometimes referred to as the silent killer because of this. You can only detect hypertension if you have your blood pressure monitored.
In the event that hypertension becomes an emergency, defined as a systolic pressure of 180 mm Hg or higher or a diastolic pressure of 120 mm Hg or higher.
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Suppose that 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit. what does this indicate about the pollination process and success?
100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit, it indicates 50%success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei.
According to the question,
The number of mature seeds are formed in the fruit = 50 (Given)
The number of pollen grains land on a stigma = 100 (Given)
We know that, one male gamete will fuse with one egg nuclei to form zygote. In the double fertilization process, one gamete fuses with polar nuclei and forms endosperm. The other male gamete fuses with the egg to form zygote then it gives rise to seeds.
∴ 50 male gametes fuse with egg cells to form 50 seeds and other 50 male gametes fuse with 100 polar nuclei.
Thus we can conclude that, 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit, it indicates 50%success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei.
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___ transport moves molecules across the plasma membrane of a cell with the help of transport proteins and energy (atp).
Active transport moves molecules across the plasma membrane of a cell with the help of transport proteins and energy (ATP).
Active transport is the means of transport of molecules across the plasma membrane with the help of energy. This method is usually used for the transport of molecule against their concentration gradient, i.e., from lower concentration to higher concentration.
Plasma membrane is the outer layer surrounding the cell. It is made up of lipid bilayer, proteins, carbohydrates and cholesterol. The lipid bilayer is amphipathic since the lipid head is hydrophilic and its tail is hydrophobic. The plasma membrane is semi-permeable in nature.
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I need help pleaseeI really don’t get this so if y’all could please explain this to me I will appreciate it a lot!!!
Answer:
mRNA: UCU GUA GGU AAU UGG UGU CAC AUC
Amino Acid: Ser Val Gly Asn Trp Cys His Ile
Explanation:
For the mRNA it is the complemetary base pair (A and U) (G and C) remeber in RNA there is no T base pair so there is U intead
For the Amino acid the table above can be used (follow in order that the base triplet)
On easter island, the most isolated piece of inhabited land in the world, the loss of timber due to the cutting down of trees by humans resulted in?
All of the above ( termination of stone carving around AD 1680, cessation of canoe manufacture, soil erosion, lower crop yields.)
What are the effects of deforestation?For indigenous people, losing trees and other vegetation can result in a number of problems, such as climate change, desertification, soil erosion, less harvests, flooding, and an increase in greenhouse gases in the atmosphere.What impact does tree removal have on the soil?Due to the loss of trees, whose roots anchor the soil, soil erosion is a prevalent issue.Good soils are few, and once they have been stripped away by the frequent, heavy rains, they are quickly washed away.How does the cutting down of trees affect global warming?Carbon is stored in plants and forests. When they are damaged or completely destroyed, for example by fire - a process known as deforestation - this stored carbon has the potential to be released back by increasing atmospheric carbon dioxide, which changes the climate.To learn more about deforestation visit:
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The process of using a carrier to passively transport a solute through a membrance down its concentration gradient is known as?
The process of using a carrier to passively transport a solute through a membrane down its concentration gradient is known as facilitated diffusion.
What is cell membrane?The cell membrane, a biological barrier, encloses each cell's interior from the outside world.A lipid bilayer that comprises of two phospholipid layers with cholesterol dissolved in them in between makes up the cell membrane.Because of its configuration, the membrane may remain fluid at various temperatures.Membranes are composed of membrane proteins, such as integral proteins that cross the membrane and serve as membrane transporters and peripheral proteins that only cling to the outside membrane of the cell and serve as enzymes to assist the organism in interacting with its environment.The glycolipids contained in the outer lipid layer serve a similar purpose.The cell membrane controls the movement of substances into and out of cells and organelles because it is only permeable to ions and organic molecules.
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What are the focus areas of the to err is human recommendations? (select all that apply.)
TheThe focus areas of recommendation are Enhance knowledge and leadership regarding safety , identify and learn from errors , set performance standards and expectations for safety and implement safety system within health care organizations.
What is the point of err in human ?The phrase" to point err human" means that human beings make mistakes and emphasize the quality of forgiveness and kindness. To err is human and to forgive is divine , which means it is natural for human beings to make mistakes as they are not perfect.
So there are four focus areas knowledge and leadership , Identity and learning from mistake.
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What is the unit of analysis that can be inferred from the following hypothesis? hypothesis: with the introduction of dna evidence, guilty pleas have increased over time.
Guilty plead is the unit of analysis that can be inferred from the following hypothesis.
How do you analyze DNA evidence?The overall method entails: the separation of DNA from a sample of evidence containing DNA of unknown origin; and, typically subsequently, the separation of DNA from a sample (such as blood) from a known individual; the processing of the DNA so that test results may be produced.
How has DNA analysis been used in criminal cases?The analysis of biological evidence from the crime scene and comparison with criminal profiles in DNA databases can be used to identify the perpetrator in situations when a suspect has not yet been named. DNA databases can be used to connect crime scene evidence to other crime scenes.
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The amount of atp stored in a muscle cell can keep a muscle active for about ________.
Which factor causes chemical weathering?
Options:
A: gravity
B: acids
C: wind
D: sunlight
Answer:
B
Explanation:
Think about the fact that it's named "chemical weathering." Acid = chemicals. Acid usually causes weathering because it breaks down objects. Hope this helps!
The only part of a triglyceride that can be used to make glucose (via gluconeogenesis) is the __________.
The only part of a triglyceride that can be used to make glucose (via gluconeogenesis) is the glycerol backbone.
A triglyceride is a type of fat. It consists of a glycerol backbone and three fatty acids attached to each of the hydroxyl group of the glycerol. High quantities of triglyceride can be harmful for the body, especially the heart. The normal range of triglycerides in the body should be less than 150 mg/dL.
Glycerol is a three carbon structure consisting of three hydroxyl groups attached to each carbon. It is of great importance for living organisms as it forms the backbone for various phospholipids and other lipid structures.
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A homeostatic imbalance that activates these bone cells would lead to a loss of bone density.
Answer: Osteoclasts are the bone cells that break down bone. If they were activated more than normal, you should expect to see bone loss.
Explanation:
Which term is used to describe an objectively identifiable aberration of the disease?
a. syndrome
b. symptom
c. sign
d. stage
Option (c) sign is the correct answer.
The term used to describe an objectively identifiable aberration of the disease is sign.
What does a sickness sign entail?Any objective proof of a sickness, as opposed to a symptom, which is always a subjective indication. For instance, obvious blood in the stool is an indication of sickness that can be identified by the patient, doctor, nurse, or another person.What are the many types of aberration?An aberration is a flaw in how a lens concentrates the light it gathers. Because the light rays travelling through a lens don't converge at a single spot, aberrations happen. Aberrations come in a variety of forms, and they can impact an image's sharpness, focus, magnification, distortion, and color.To learn more about aberration visit:
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About _____ molecules in a glass of water are dissociated.
1 in 500,000,000
1 in 5,000,000
1 in 1,000,000,000
1 in 2
1 in 1,000,000
Answer:
in my opinion I will go for 500,000,000 (one in half a billion).
Explanation:
Because Water is an amphoteric substance, which means water can accept a proton acting as a base, and it can also donate A proton acting as an acid. About one water molecule in half a billion dissociates into an OH - ion by losing a proton to
another water molecule .
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A colorblind woman and a non-colorblind men are planning to start a family. the expected phenotypic ratio of their children is:_______.
The expected phenotypic ratio of the children for a colorblind woman and a non-colorblind man will be 1:2:1(carrier daughter: normal daughter: normal son: colourblind son)
Color blindness is a sex-linked recessive disease (meaning the gene is almost always found on the X chromosome) which means that it excessively affects only males since they have one X chromosome and females have two, which most of the time is expressed in only one. In this disease, people see different colors as compared to normal people. The person can not be able to judge the brightness of the color and different shades of a color.
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8. Gene's doctor taps him on the knee and his leg kicks out
(straightens). What motion did his leg make?
Gene's doctor taps him on the knee and his leg kicks out. The motion of his leg makes deep tendon reflex (DTR).
Lower motor neuron lesions have varying effects on tendon reflexes, also referred to as myotatic reflexes. The efferent limb of a tendon reflex will not function if a muscle loses all motor neuron innervation. Lower motor neuron lesions are frequently accompanied by hypoactive or absent reflexes.
This is frequently caused by the simultaneous activation of muscle spindle sensory afferent fibers inside peripheral nerves or roots, though.
Muscle stretch reflexes, which are deep tendon reflexes, are carried out by neuromuscular spindles. They are the only objective aspect of the clinical assessment. The patient may intentionally change their responses to the motor and mental examinations, their performance on sensory tests, or even their stride, for a number of different reasons.
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Some ribosomes, which are the protein manufacturing organelles in the cell, are suspended in the cytosol of a cell, whereas other ribosomes ________.
Some ribosomes, which are the protein manufacturing organelles in the cell, are suspended in the cytosol of a cell, whereas other ribosomes are attached to the outside of the nucleus.
What is ribosomes?An intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell is said to be ribosomes.
The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.
Ribosomes was present both in plants cells and animal cells.
Some ribosomes, which are the protein manufacturing organelles in the cell, are suspended in the cytosol of a cell, whereas other ribosomes are attached to the outside of the nucleus.
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During the __________ the virus is idle. select one:
a. dormant phase
b. propagation phase
c. triggering phase
d. execution phase
During the dormant phase the virus is idle.
A virus is a small, contagious organism that can only grow inside of living cells.
What are viruses?A virus is an infectious submicroscopic creature that only reproduces inside of live cells.All living things, including plants, animals, and microbes like bacteria and archaea, are susceptible to virus infection.Since they are difficult to classify as living creatures, viruses are referred to as Agents.Because they produce a variety of diseases that are often exceedingly challenging to control and cure, viruses—which are made of DNA and RNA—can be thought of as agents.Viruses don't exhibit the traits of living things; they are cellless and don't fall under the category of bacteria because they exclusively multiply inside the body, whereas bacteria do so everywhere.To learn more about Viruses, refer to the following link:
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Taxol is a chemotherapeutic drug that will attach to the spindle fibers and prevent their function thereby killing the cancer cell. which process does this drug prevent from occurring?
Taxol is a chemotherapeutic drug that will attach to the spindle fibers and prevent their function thereby killing the cancer cell. The Anaphase process is avoided from occurring by this drug.
What is Taxol?Taxol (chemical name: paclitaxel) is a anti-cancer chemotherapy drug used to treat cancer, blocks cancer cell growth by stopping cell division, resulting in cell death. It is used in treatment of breast cancer, ovarian cancer, non-small cell lung cancer, pancreatic cancer, and AIDS-related Kaposi sarcoma.
Taxol interferes with anaphase process by inhibiting the shortening of the microtubules attached to the sister chromatids, so the chromatids do not separate and hence, will not move to the ends of the cells. Ultimately the cell division does not take place.
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