Answer:
The correct answer is option B. "Tensor veli palatini".
Explanation:
Masseter muscle plays an important role in chewing solid foods while the tensor veli palatini acts elevating the palate and preventing that food goes into the nasopharynx. A progressive degeneration of the motor axons that innervate the masseter muscle will likely produce a similar effect in the tensor veli palatini muscle. Not only both muscles have functions during chewing of food, but also both muscles are controlled by similar motor axons.
Why is it essential that the regulatory mechanisms that activate glycogen synthesis also deactivate glycogen phosphorylase?
Final answer:
Regulatory mechanisms activate glycogen synthesis and deactivate glycogen phosphorylase simultaneously through reciprocal regulation to prevent a futile and energy-wasting cycle of simultaneous glycogen synthesis and breakdown. This coordinated process is crucial for energy homeostasis and is regulated allosterically and by hormones that control phosphorylation states of key enzymes.
Explanation:
It is essential that the regulatory mechanisms that activate glycogen synthesis also deactivate glycogen phosphorylase to prevent a futile cycle of synthesizing and breaking down glycogen at the same time, thus wasting energy. This is known as reciprocal regulation, a process ensuring efficiency and simplicity in metabolic control. Glycogen synthase, the enzyme responsible for glycogenesis, is active when dephosphorylated while glycogen phosphorylase, the enzyme for glycogenolysis, is active when phosphorylated. When insulin is present, it activates a phosphatase which simultaneously promotes the dephosphorylation and activation of glycogen synthase and the dephosphorylation and inhibition of glycogen phosphorylase. Conversely, in the presence of hormones like epinephrine or glucagon, a signaling cascade leads to the phosphorylation of enzymes, resulting in activated glycogen phosphorylase and inhibited glycogen synthase.
High-energy molecules like ATP and G6P allosterically inhibit glycogen phosphorylase, while low-energy molecules such as AMP activate it. This allosteric regulation aligns the activity of glycogen phosphorylase with the cell's energetic demands. Overall, the reciprocal regulation of glycogen metabolism by phosphorylation and dephosphorylation mechanisms is crucial for maintaining energy homeostasis within the cell.
Mr. Rojas was looking through a microscope at some similar cells. He noticed that every cell had a different structure. What can he infer about these cells? * They are from different organisms. They have the same organelles. They have the same functions. They have different functions.
Answer:
They have different functions.
Explanation:
The cells having different structures may come from the same organism and having different structures may result from having different organelles. Due to the structure function correlation in cells, it is thus likely that the different structures arise from different functions, hence cells are specialised structurally to optimise performance in their functions.
Connective tissue that encloses a bundle of muscle fibers is called
Answer:
Perimysium.
Explanation:
Perimysium: It is known as the sheath of connective tissues which helping in to group muscle fibers into bundles. They are helping delicate cells in protection, and support. It is also playing an important role in transmitting lateral contractile movements in skeletal muscles.
Each muscle compartments carries a bundle of muscle fibers, and this each bundle of muscle fibers is known as fasciculus. Muscle fibers is surrounded with the help of the connective tissues known as endomysium. Bundle of muscle fibers are surrounded with the help of connective tissues known as perimysium.
The connective tissue that encloses a bundle of muscle fibers is called perimysium.
Explanation:The connective tissue that encloses a bundle of muscle fibers is called perimysium. It is a dense and irregular connective tissue that surrounds a group of muscle fibers, forming a bundle known as a fascicle. The perimysium provides support and protection to the muscle fibers, as well as helps transmit the force generated by the muscle contraction.
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Most of the cells examined during interval A have half as much DNA as those measured in interval C. Therefore, most of the cells at interval B must have been in:
a) G1 phase.
b) G0 phase.
c) M phase.
d) G2 phase.
e) S phase.
Answer:
e) S phase
Explanation:
The cell cycle is divided into various phases. These are in accordance with their order:
1.[tex]G_{1}[/tex] phase
In this phase, the cell grows in size and doubles its organelles. This phase is in fact a preparatory phase for cell division.
2.S phase
In this phase, the cell doubles its nuclear material (DNA). As cell divides into 2 daughter cells in mitosis, therefore it is necessary for cell to double its genetic material (DNA) which takes place in S phase. This genetic material is equally distributed among the daughter cells.
3.[tex]G_{2}[/tex] phase
In this phase, the cell further increases its store of proteins and organelles and prepares for the next phase i.e. M phase in which cell divides.
4.M phase
It consists of 2 processes i.e. mitosis and cytokinesis. In mitosis, the cell divides its genetic material (DNA) and in cytokinesis, the cell divides its cytoplasm resulting in 2 daughter cells.
[tex]G_{0}[/tex] phase
This is an inactive stage of cell cycle. In this stage cell does not divide further but remains quiescent. It performs its normal function in this phase. This phase is not a feature of all cells. Some cells like neurons (nerve cells) enter Go phase and remain there permanently whereas epithelial cells (cells lining body surfaces) do not enter Go phase and continuously divide. Cells enter Go phase after going through [tex]G_{1}[/tex] phase.
Back to the question,
If interval A contains half as much DNA as interval C then it implies that interval A is [tex]G_{1}[/tex] phase as in this phase of cell cycle, cell increases its size, and organelles but does not double its DNA content. It is further understood that interval C is [tex]G_{2}[/tex] phase as it contains double the DNA amount as in interval A. It can be understood that B interval is S phase, as in S phase cell doubles its DNA content and this phase occurs in between [tex]G_{1}[/tex] and [tex]G_{2}[/tex] phases.
The correct answer is (e) S phase.
The cell cycle consists of several phases: G1 (first gap), S (synthesis), G2 (second gap), and M (mitosis). During the S phase, DNA replication occurs, resulting in cells having twice as much DNA as they had in G1.
Given that cells in interval A have half as much DNA as those in interval C, we can infer the following:
- Cells in interval C must have completed DNA replication and are therefore in either G2 or M phase, where they have double the DNA content compared to G1.
- Cells in interval A, having half the DNA content of those in interval C, are likely in G1 phase, where they have not yet replicated their DNA.
Now, considering interval B, which is between intervals A and C, the cells in interval B must be in the process of moving from the G1 phase (with a single set of DNA) to the G2 or M phase (with a double set of DNA). The only phase in which DNA content is increasing from the G1 level to the G2 level is the S phase.
Therefore, most of the cells at interval B must have been in the S phase, where DNA synthesis is occurring, and the DNA content is increasing from the amount present in G1 to that present in G2/M. This is consistent with the observation that the DNA content in interval B is between that of interval A (G1 phase) and interval C (G2 or M phase).
To summarize:
- Interval A: G1 phase (single DNA content)
- Interval B: S phase (DNA content increasing)
- Interval C: G2 or M phase (double DNA content)
Hence, the correct answer is e. S phase.
Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxypeptidase. The zinc most likely functions as a(n)____________.
A) competitive inhibitor of the enzyme.
B) noncompetitive inhibitor of the enzyme.
C) allosteric activator of the enzyme.
D) cofactor necessary for enzyme activity.
E) coenzyme derived from a vitamin.
Answer:
D) cofactor necessary for enzyme activity.
Explanation:
A cofactor is an inorganic ion that is required as an additional chemical component by an enzyme. The ions such as Fe2+, Mg2+, or Zn2+ mostly serve as cofactors for one or more enzymes. The enzymes such as Cytochrome oxidase, catalase, and peroxidase require Fe2+ or Fe3+ ions as a cofactor. Some cofactors are very tightly bound to the active site of their enzymes and their removal renders them enzymes inactive. According to the given information, zinc is present in the active site of the enzyme carboxypeptidase which means that it is a cofactor for this enzyme.
As a research scientist, you measure the amount of ATP and NADPH consumed by the Calvin cycle in 1 hour. You find 30,000 molecules of ATP consumed, but only 20,000 molecules of NADPH. Where did the extra ATP molecules come from?
A. photosystem ll
B. photosystem I
C. cyclic electron flow
D. noncyclic electron flow
E. chlorophyll
Answer:
C. cyclic electron flow
Explanation:
Cyclic electron flow includes only PSI. Electrons passing from P700 of PS I to ferredoxin do not reduce NADP+. The electrons are channeled back through the cytochrome b6f complex to plastocyanin. Therefore, cyclic electron flow cycles the electrons out of and back to the P700 and is not accompanied by a reduction of NADPH or splitting of H2O molecule.
However, proton pumping by the cytochrome b6f complex during electron transfer generates the proton contraction gradient which in turn drives the phosphorylation of ADP to ATP. The cyclic photophosphorylation supplies the extra ATP required for the Calvin cycle.
Francis Crick hypothesized that the Genetic Code must require 3 nucleotides in the mRNA to specify each amino acid based on a simple calculation. What was the logic behind this calculation?
Answer: The answer is - Based on the number of known amino acids and the number of known nucleotide bases
Explanation:
According to Francis Crick's calculation, three (3) nucleotides encode an amino acid. Proteins are built from a basic set of 20 amino acids, however there are only four (4) bases. Calculations therfore show that to encode at least twenty (20) amino acids a minimum of three (3) bases is required. Genetic experiments have shown that an amino acid is in fact encoded by a group of three (3) bases or codon.
What unit of light stimulates photoreceptor cells in the retina?
Answer:
Photons
Explanation:
The retina is a thin layer (membrane) in the eye that receives light through photoreceptor cells that convert this light into chemical and nervous signals transported to the brain's visual center.
The photoreceptors in the retina are known as rods and cones. Rods detect motion and sare responsible for black and white vision, they are present in the macula. Cones on the other and, are responsible for central and color vision. These photoreceptors absorb photons that trigger the membrane's potential of the cells.
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A photon, which is a unit of light with properties of both a particle and a wave, stimulates the photoreceptor cells in the retina. These cells, rods, and cones, contain pigments that change in response to light, triggering visual perception.
Explanation:The unit of light that stimulates the photoreceptor cells in the retina is called a photon. A photon is a packet of energy that acts as both a particle and a wave. In the retina, photoreceptors such as rods and cones contain photosensitive pigments that undergo chemical changes when exposed to light. The two types of photoreceptor cells, rods and cones, perform different functions. Rods are responsible for vision in low-light conditions and do not mediate color vision, while cones are less sensitive but responsible for color vision and function well in brighter light. Each photoreceptor cell contains a pigment, and when exposed to light, the pigment undergoes a conformational change that ultimately leads to a change in the cell's membrane potential. This change in potential triggers a cascade of events that result in the perception of light.
Colin owns a dog food business, but wants to develop a canine fashion line as a way of expanding his portfolio and increasing sales and profits. One of the things customers love about Colin’s company is that all of the products are manufactured locally, creating jobs for young people. Though he does not have a lot of money and hopes that he won’t have to hire new staff, he thinks he might have to. Rather than developing a canine fashion line, which of the following alternatives can you suggest to Colin?a. Colin should use cannibalization strategy.b. Colin should use a market penetration strategy.c. Colin should outsource his company’s jobs to cut costs.d. Colin should consider selling his business to a larger pet food company.e. Colin should hire a marketing company to help him promote his products.
Answer:
I think it is B. Market Penetration strategy.
Explanation:
I'm very sorry if this is wrong but studying the two possible answer (A or B)
B seemed the most probable due to the definition of the Market Penetration Strategy. Which is essentially "To focus on current products and current markets in order to increase market share". (I hope I was able to help! :)
In the given scenario Colin should use a market penetration strategy. The correct option is b.
What is market penetration strategy?When a business uses existing products in existing markets, it is using a market penetration strategy in an effort to increase its market share.
This is how a business that currently has a product on the market can expand by boosting sales among existing customers.
Using market penetration techniques, a brand can introduce its current goods or services to a booming, in-demand market.
He fears he might need to hire more employees because he doesn't have much money and is hoping he won't.
The solution that can be advised to Colin instead of creating a dog fashion line so Colin should employ a market penetration strategy.
Thus, the correct option is b.
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Why is the concentration of calcium so high in the sarcoplasmic reticulum during rest?
Explanation:
The sarcoplasmic reticulum is a system found within muscle cells and involved in the storage of intracellular calcium, this function is crucial for the cells because calcium is used to trigger the muscle contraction through excitation and depolarization of the cell, shifting the membrane potential.
Since the presence of too much calcium in the cells leads to calcification (hardening of structures), the sarcoplasmic reticulum is also an important way to control the calcium ion levels in the cell absorbing it from the cell to go back to rest.
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Alisa is studying the way in which men and women select partners to marry. She notes that across 37 cultures, one study found that women prefer men who have all the following qualities EXCEPT beingSelect one:
a. attractive.
b. career oriented.
c. good earners.
d. fond of children.
Answer:
The correct answer will be option-A
Explanation:
The practice of marriage is practised in every culture which is associated with the union of the boy and a girl to which they are committed to spending a life-long relationship.
The studies on the preferences shown by the woman who has to get married have to look for the boys who are career-oriented which could provide a good earning to feed them and their family and fond of children to establish a family which will help develop the stronger relationship between them.
The girls ignored the attractiveness feature of their spouses as in a long term relationship attractiveness does not matter because of the feeling of love and strong bond between them.
Thus, option-A is the correct answer.
A young female is unconscious after intentionally ingesting a large amount of aspirin. You will MOST likely find her respirations:
a. slow and deep.
b. deep and rapid.
c. slow and shallow.
d. rapid and shallow.
Answer:
Deep and rapid.
Explanation:
Respiration may be defined as the process of exchange of gases between the atmosphere, alveoli and body tissue. Two important process of respiration are inspiration and expiration.
Aspirin drug may also effect the rate of respiration in the individual. The breathing rate get increased after taking the excess dose of aspirin. The increase in the breathing rate results in the rapid and deep breathing of the individual.
Thus, the correct answer is option (b).
When a young female ingests a large amount of aspirin and becomes unconscious, the most likely finding in terms of respirations is rapid and shallow.
Explanation:When a young female is unconscious after intentionally ingesting a large amount of aspirin, the most likely finding in terms of respirations is rapid and shallow. Aspirin overdose can lead to respiratory alkalosis, causing the breathing rate to increase and become shallow due to the stimulation of the respiratory center in the brainstem. It is important to seek immediate medical help in such situations.
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Recent research has demonstrated a correlation between the presence of certain types of Gram-positive bacteria in the human gut with obesity and type 2 diabetes. These findings best support which of the following statements?
a.) Normal microbiota may significantly impact human health and disease.
b.) The presence of Gram-positive bacteria in the human gut causes obesity and type 2 diabetes.
c.) Gram-positive bacteria compose the majority of normal microbiota in the human gut of people with obesity and type 2 diabetes.
d.) Obesity and type 2 diabetes is caused by normal microbiota in the human gut.
Answer:
The correct option is A. Normal microbiota may significantly impact human health and disease.
Explanation:
A wide number of microorganisms are present on or inside of our body. All these microorganisms make up the natural microbiota. The normal microbiota is very important to maintain the health of the host.
However, any microbial imbalance can lead to causing disease in its host. The microbiota of the gut have a disease-promoting effect but can also have protective properties. Differences in this microbiota can lead to serious conditions.
True or False: The arrows on a motion map must be connected to the dots on a motion map.
True. The arrows on a motion map must be connected to the dots on a motion map.
Explanation:
A motion map represents the movement of an object. The dots used in a motion map represent the position of an object and its displacement is represented by arrows. The dots come at the tail end of the arrows.
The direction of the arrows denotes the direction of displacement vector of the object. Thus reversing the direction of the object reverses the direction of arrows in a motion map. The length of the arrow represents the magnitude of the velocity vector which is the speed of the object.
A cell that requires a lot of energy might contain large numbers of
Answer:
Mitochondria
Explanation:
The mitochondrion is a relatively small, double membrane organelle that primarily serves as the site of oxidative phosphorylation; a process that generates energy in the form of ATP for the running of cell's activities.
Hence, a cell that requires a lot of energy might need a large number of mitochondria in order to meet the energy demand of the cell.
The answer is mitochondria.
Answer:
A cell that requires a lot of energy might contain large numbers of mitochondria.
Explanation:
Mitochondria are the cellular organelles that are responsible for producing the greatest amount of energy that cells require to activate their biochemical reactions. They produce adenosine triphosphate (ATP), which is an energy-carrying molecule and it's essential for the cell to perform its functions.
Dr. Aruna has diagnosed several clients with social anxiety disorder, and he is interested in finding a treatment plan that will be effective in the long term and have the fewest side effects. Dr. Aruna should try:
Answer:
Cognitive-behavioral therapy
Explanation:
Cognitive-behavioural therapy can be described as a very common type of psychotherapy which psychologists use to help patients undergoing anxiety disorders. It is a type of talk therapy. This kind of therapy trains your brain to become aware whenever you are thinking in a negative manner. It trains you to think in a positive manner instead. It helps a person to change the way they feel. Hence, cognitive-behavioural therapy is the best plan for patients with social- anxiety disorder.
Answer: Cognitive behavioral therapy
Explanation:
Cognitive behavioral therapy is a kind of talk therapy which is not only useful to treat mental problems, disorders and depression but it is also useful to reduce stress, overcome emotional unbalance. This is also helpful to overcome the social anxiety disorders.
This is associated with fewer side effects and the treatment is effective for long term or lifelong. This helps to cope with stress, grief and resolving the relationship conflicts.
According to the given situation, CBT is the correct treatment plan that can be used to treat the social anxiety disorder.
Waste stream is a term describing Group of answer choices the steady production of all waste products that humans produce. the process of eliminating domestic and commercial waste. the production of solid waste, specifically. the intermittent production of particular wastes. the production of liquid waste, specifically.
Answer:
Waste stream is a term describing the process of eliminating domestic and commercial waste.
Explanation:
Waste stream refers to the journey of waste from its domestic or industrial origins to its final destiny. As waste moves through the line, it passes by different stages or areas that must be controlled by different agents. Waste stream analysis is an important tool to evaluate the management of materials or resources, allowing to identify contamination and polluting problems in a system. It might be the base of sustainability by solid waste use. Applying recycling strategies during different stages of waste stream might reduce the content of waste as it goes along the journey.
Waste stream is a term describing the steady production of all waste products that humans produce.
The term "waste stream" refers to the continuous and ongoing production of all types of waste materials generated by human activities.
It encompasses various forms of waste, including solid waste, liquid waste, and gaseous waste.
The waste stream concept recognizes that waste is generated at different stages and in various sectors of human activities, such as residential, commercial, industrial, and agricultural sectors.
Thus, analyzing the waste stream also helps identify areas where waste reduction efforts can be targeted and facilitates the development of policies and practices to promote a circular economy and reduce the environmental impact of waste.
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Which of the following is NOT a function of the CSF?a.nourishment of the brainb.protection from blowsc.initiation of some nerve impulsesd.reduction of brain weight
Answer: c.initiation of some nerve impulses
Explanation:
Cerebrospinal fluid is a clear, colorless fluid that can be found in the brain and spinal cord. It is secreted by meninges and choroid plexus. It is absorbed by the arachnoid granulations.
The primary function of the CSF is to act as a cushion to the brain within the skull to serve as a shock absorber and prevents the injury from the blow. It also circulates the chemicals and nutrients filtered from the nerves and also removes the waste from the brain produced by the cerebral metabolism hence reduces the wastes from the brain.
The cerebrospinal fluid does not function in the initiation of the nerve impulses.
The cerebrospinal fluid (CSF) does not initiate nerve impulses. Its primary roles are to act as a cushion, reducing the weight of the brain, and to nourish the brain by transporting substances and removing waste, not to initiate nerve impulses.
Explanation:The function that is NOT attributed to the cerebrospinal fluid (CSF) among the options is the initiation of some nerve impulses. CSF primarily has two main roles in the Central Nervous System (CNS). First, it acts as a cushion for the brain and spinal cord, protecting these sensitive structures from shock or injury. It provides a buffer around the CNS organs within the protective dura mater, essentially helping to reduce brain weight. Second, it nourishes the brain by transporting nutrients and chemicals filtered from the blood and removes waste products.
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In which of the following groups are most mRNAs monocistronic?
a.bacteria and archaea archaea
b.bacteria eukarya
c.All mRNAs are monocistronic.
Answer:
The answer is B
Explanation:
Bacteria eukarya
Sympatric speciation
I. is common in animals but rare in plants.
II. initially involves a physical geographic separation of individuals from a single population into two separate populations.
III. can result in the formation of a new species within a few generations.
Answer:
The correct answer is III. can result in the formation of a new species within a few generations.
Explanation:
When a population from a species who live in the same habitat isolate reproductively and form new species then this process is known as sympatric speciation. This speciation mainly results from the generation of polyploidy condition.
In polyploidy condition the chromosome numbers in the individuals become double. This condition most commonly occurs in plants. Then these polyploid plants can not reproduce with other diploid plants but can fertilize itself so it create a reproductive isolation with other members and produce new species. So in sympatric speciation formation of new species occurs within a few generations.
A major part of an ecosystem was washed away by a flood. Only two male deer and two female deer survived from the original population of 50 deer. The four deer mate and produce offspring. Over time, the population of deer grows. Which prediction is most likely for the future generations of deer?
Answer:
To regenerate the original population
Explanation:
If the four mates survive to climate conditions, their offspring also survive to environmental conditions such as temperature, humidity, food, shelter, etc. so by passing a long long time, the original population can be regenerated and give a balance again in that ecosystem with the others species that live over there. So the food web is not going to change.
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Answer:
its B
Explanation:
i got it right on edmentum
quzilet What is the most important nutrition concern for the person with Alzheimer's disease? a) prevention of weight loss b) elimination of dietary aluminum c) supplementation with zinc d) treatment with the medicinal herb e) ginkgo biloba.
Answer:
Prevention of weight loss
Explanation:
It is high priority to maintain bod weight
Enter the sequence in which the action potential would pass through the points. Enter the letters in the correct order separated by commas. For example if the order is point (c), then (b), then (a), enter c, b, a. If the action potential would not pass though a point, do not include that point in your answer.
Answer:
c , b , a
Explanation:
The sequence in which the action would pass through points c, b , a.
What specialized cells do cnidarians use for protection
Answer:
Cnidarians have special cells called cnidocytes, or commonly known as stinging cells, which contain organelles called nematocysts, or stingers.
Cnidarians use specialized cells called cnidocytes, which contain nematocysts, for protection.
Explanation:Cnidarians use specialized cells called cnidocytes for protection. Cnidocytes are located around the mouth and tentacles and contain organelles called nematocysts. When triggered by a tactile stimulation, the nematocysts release a coiled thread and barb, along with toxins, which can immobilize or paralyze prey or predators. These cells are the defining feature of cnidarians and are responsible for their ability to capture prey and defend themselves.
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In C3 plants the conservation of water promotes _____.
a.photosynthesis
b.a shift to C4 photosynthesis
c.the opening of stomata
d.photorespiration
e.the light reactions
Answer:
The correct answer is d. photorespiration
Explanation:
In the C3 plant, the Rubisco enzyme is important that fix CO2 into organic molecule by binding with CO2. Rubisco can also bind to oxygen when the oxygen concentration increases in cells which leads to the loss of fixed CO2 and waste of energy which is called photorespiration.
So when stomata are open CO2 comes in and O2 goes out of the cell which maintains the high CO2 concentration in the cell but during hot days C3 plants close stomata to prevent water loss.
So closing of stomata decrease the intake of CO2 and increase the oxygen concentration inside the cell. So in increased temperature and high oxygen concentration, the rubisco enzymes bind to O2 and promote photorespiration.
In C3 plants, the conservation of water leads to photorespiration because in conditions where plants close their stomata to save water, CO2 cannot be utilized effectively, and plants begin to fix oxygen instead, initiating photorespiration.
Explanation:In C3 plants, the conservation of water promotes photorespiration. This is because during periods of drought or high temperatures, plants close their stomata to conserve water. However, when the stomata are closed to save water, CO2 levels within the leaf drop, and O2 levels rise. As a result, the enzyme Rubisco begins to fix O2 instead of CO2, initiating photorespiration instead of the normal photosynthesis process. Moreover, plants have developed adaptations to conserve water; for example, desert plants like cacti can fix CO2 at night when temperatures are lower, reducing water loss through transpiration. Overall, conserving water is critical in harsh environments to help the plants survive extreme conditions.
Most people's values are not a system at all; they are typically a collection of general principles, practical conclusions, and emotional pronouncements. Your challenge is to create a more refined and accurate ______________ _____________, an enlightened system of values that you can use to guide your moral decisions
Answer: Moral compass
Explanation:
Most people's values are not a system at all; they are typically a collection of general principles, practical conclusions, and emotional pronouncements. Your challenge is to create a more refined and accurate moral compass, an enlightened system of values that you can use to guide your moral decisions.
When we talk about moral compass, we're referring to a gut feeling that allows that to difference what's right and what's wrong to say or do, and this is the feeling we use as a guide for everytime we've got to take a path of action.
Jed was hospitalized for a hip surgery. He is eight years old, and is now exhibiting confusion about the time of day or day of week. He is unable to focus on anything. These symptoms started while he was in the hospital. What is a likely diagnosis?
Answer:
The correct answer is delirium.
Explanation:
An unexpected variation in the brain, which leads to emotional disruption and mental confusion is known as delirium. It makes an individual difficult to remember, sleep, think, to pay attention, and several other consequences. One might experience delirium post-surgery, at the time of alcohol withdrawal, or with dementia.
However, the condition is generally impermanent and can be cured efficiently. Delirium influences the emotions, mind, sleep patterns, and control of muscles. One may find it tough to concentrate or feel confused regarding his or her locations. One may also move gradually or briskly than generally, and may even encounter with mood swings.
Thus, it can be concluded that in the given case of 8 year Jed, who had undergone surgery is not able to concentrate on anything and is feeling confused due to a condition known as delirium.
What is the term for a natural phenomenon that is generally accepted due to a large body of empirical data through repeated experiments; it usually describes how or why something happens
Final answer:
A scientific law is a term describing a natural phenomenon that is widely accepted due to extensive empirical evidence and repeated experiments, using precise language or mathematical expressions.
Explanation:
The term for a natural phenomenon that is generally accepted due to a large body of empirical data through repeated experiments, and usually describes how or why something happens, is a scientific law. A scientific law is a law description that uses concise language or a mathematical formula to express a generalized pattern in nature. This law is strongly supported by scientific evidence and validated through numerous experiments, making it a reliable statement that describes a particular set of observations in nature.
Scientific laws serve as the foundations for scientific investigations, which seek to examine, gain new knowledge, or build upon previous knowledge of various phenomena. An example of a scientific law is Newton's law of universal gravitation, which reliably describes the gravitational attraction between masses. Science continuously evolves, hence, scientific laws may also be refined as new empirical data becomes available.
Entropy A) is the total energy in a system. B) tends to decrease the total energy in the universe. C) when multiplied times the absolute temperature, is the useable energy in a system. D) is related to the disorder or randomness of a system. E) is free energy.
Answer:
Option (D)
Explanation:
The entropy is usually defined as the measure of the total thermal energy of a system per unit temperature. This amount of energy is used in performing valuable work. In simple words, it can be said that entropy is related to the disorder or degree of randomness of a particular system. This entropy concept gives proper information regarding the direction along which natural change occurs and is frequently observed in many present-day events.
Thus, the correct answer is option (D).
During a stressful interval, ________. During a stressful interval, ________. the posterior pituitary gland secretes more growth hormones adrenocorticotropic hormone (ACTH) stimulates the adrenal cortex, and neurons of the sympathetic nervous system stimulate the adrenal medulla thyroid-stimulating hormone (TSH) stimulates the adrenal cortex and medulla to secrete acetylcholine the alpha cells of islets secrete insulin and simultaneously the beta cells of the islets secrete glucagon the calcium levels in the blood are increased due to actions of two antagonistic hormones, epinephrine and norepinephrine
Answer:
Adrenocorticotropic hormone (ACTH) stimulates the adrenal cortex, and neurons of the sympathetic nervous system stimulate the adrenal medulla.
Explanation:
Hormones are the chemical messengers of the body and maintain the body's homeostasis in different adverse conditions. The hormones work by the feedback regulation system.
To overcome from the stress condition the body releases the hormone known as epinephrine. The receptors sense the stressful condition and adrenal cortex is stimulated by adrenocorticotropic hormone that results in the release of adrenaline hormone. The hormone activates the sympathetic nervous system of the body to cope with the fight and flight conditions.
Thus, the correct answer is option (2).