The peripheral nervous system (PNS) is the interlaced network of nerve fibers that enables communication between the brain and spinal cord (the central nervous system, or CNS) and the rest of the body. It serves a key role in transmitting sensory inputs and motor responses and comprises the sensory-somatic and the autonomic nervous systems. The PNS is vulnerable to injury and infections, which can result in neuropathy.
Explanation:The peripheral nervous system (PNS) is a network of interlacing nerve fibers that serve as the connection between the central nervous system (CNS) and the rest of the body. The PNS consists of nerve cord-like bundles of axons that transmit both sensory inputs from the body to the CNS and motor responses from the CNS to the rest of the body. The nerves within the PNS are divided into the sensory-somatic nervous system, which manages the transmission of sensory information, and the autonomic nervous system, overseeing involuntary body functions.
The PNS operates much like the wires that connect a power source to individual houses. It carries the signals generated by the 'power plant' of the CNS, enabling these signals to control the body's functions and allowing the CNS to receive sensory information from the body. The PNS comprises bundles of axons, which, unlike the tracts in the CNS, are bound by multiple layers of connective tissue and supplied with nourishment by blood vessels.
Damage or infection to the nerves of the PNS can lead to neuropathy, resulting in sensations of tingling or numbness. The PNS and CNS are critical subsystems of the human nervous system, working interactively to maintain the communication network of the body.
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What is the difference between bactericidal and bacteriostatic agents?
A crossover in meiosis is an exchange of genetic material between
A crossover in meiosis is the exchange of genetic material between two homologous chromosomes during the prophase I of meiosis. This process adds to the genetic diversity of offspring.
Explanation:A crossover in meiosis is an exchange of genetic material between two homologous chromosomes. This process occurs during the prophase I stage of meiosis. Each chromosome aligns with its partner chromosome, and they exchange segments of their DNA in a process known as 'crossing over'. This results in chromosomes that have a mixture of both parent's genes and thereby adds to the genetic diversity of offspring.
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At higher doses, __________ can cause hallucinations, feelings of strength, seizure, and coma.
Answer:
ketamine , dextromethorphan & PCP - D. All of the above
Explanation:
If a man's vas deferens is surgically cut and tied off how will it affect him?
Answer:
Vasectomy is a surgical procedure which is used for male sterilization. In this procedure vas deference of male is cut and tied so that the sperms cannot enter into the urethra.
This will not the process of fertilization and this is a very effective way of birth control. This is very economical method of birth control and less time taking process.
As hawkeye and the men neared the huron encampment, what signal did they agree to give in order to warn one another?
The graph above shows the progress of an enzyme-catalyzed chemical reaction. Based on the graph, this enzyme
A. works optimally at 5°C
B. works optimally at 33°C
C. begins to denature above 25°C
D. begins to denature below 20°C
The right answer is C. begins to denature above 25°C
In biochemistry, denaturation is the process by which a biological macromolecule, nucleic acid or protein loses its normal three-dimensional conformation: the proteins lose their folding and unfold, the paired strands of the nucleic acid duplexes separate. This three-dimensional conformation is most often necessary so that the biological macromolecules can fulfill their function and thus the inactive denaturation in general these biological macromolecules.
Denaturation can be done by:
*Temperature: The increase in temperature causes thermal agitation of the atoms of the molecule. This causes a break in intermolecular interactions.
*PH change
*Radiation
*Chemical agents: chaotropic agents, bases, acids, reducing agents, detergents, heavy metal ions.
The human abo blood group is controlled by a single autosomal gene with three alleles, ia, ib and i. individuals with either the iaia or iai genotypes have blood type a; those with ib ibor ibi have blood type b; those with iaib have blood type ab; and those with ii have blood type o. imagine a mother with type-a blood, and a father with type-b blood have a baby with type-o blood. what is the probability that any given child of this couple will have type-o blood?
One function of the gallbladder is to ____.
The gallbladder's primary role is to store and concentrate bile, a digestive fluid which helps in the digestion of fats in the small intestine. It releases bile when we consume a high-fat meal.
Explanation:The primary function of the gallbladder is to store and concentrate bile, a digestive fluid produced by the liver. Bile aids in the digestion of fats in the small intestine. When we consume a meal, especially one that is high in fat, the gallbladder contracts and releases this stored bile into the small intestine through a series of ducts, facilitating the digestion process.
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Juan believes that robins are a good example of a bird. sergei believes that penguins are a good example of a bird. juan and sergei are both correct according to the ________ model of organizing concepts.
Final answer:
Juan and Sergei are both correct according to the prototype model of organizing concepts, which suggests our minds organize concepts around prototypical examples, like robins for birds, but can still include less typical examples, like penguins.
Explanation:
Juan believes that robins are a good example of a bird, and Sergei believes that penguins are a good example of a bird. Both Juan and Sergei are correct according to the prototype model of organizing concepts. In psychology and cognitive science, the prototype model, first articulated by Eleanor Rosch, suggests that our minds organize concepts around prototypical examples. These prototypical examples embody the most common characteristics of a category but don't necessarily include all members of that category. Robins, for example, are seen as more prototypical birds because they exhibit characteristics commonly associated with birds, such as the ability to fly and build nests in trees. Penguins, while less prototypical, still fall within the bird category despite lacking these characteristics because they possess other defining bird traits, such as having feathers and laying eggs.
How many external openings are located at the poster of the frog’s body (for reproduction, urination, and defecation)?
What consequences of heavy drinking do men and women experience differently? select all that apply?
In the little albert study, an 11-month-old boy was taught to fear a rat through the use of ______.
a. classical conditioning
b. hypnosis
c. operant conditioning
d. punishment
The people in a location in Florida depend on groundwater for their supply of drinking water. The groundwater in the location has been tested recently and the nitrate and phosphate levels have been found to be very high in the groundwater. What are people in the location most likely to do?
start drinking bottled water
reduce their water consumption
start storing rain water for drinking purpose
install water filtering equipment in their houses
Answer:
D
Explanation:
why do scientists believe that life first emerged from the ocean and onto land well after the ancestors of modern day cyanobacteria populated the earth
Answer:
Since the ancestors of modern day cyanobacteria added oxygen to the primitive reducing atmosphere of earth.
Explanation:
The primitive atmosphere of the earth did not have oxygen. So, life was not possible on land. The ancestors of modern-day cyanobacteria had the ability to carry out oxygenic photosynthesis which in turn releases oxygen as a by-product. Hence, these ancestors of modern-day cyanobacteria populated the land and added oxygen to the atmosphere of the earth.
Once enough oxygen was added to support the other life forms, aquatic life forms gradually started occupying the land habitats.
What theory suggests that our body's dna genetic code contains a built-in time limit for the reproduction of human cells?
The theories on the expansion of the universe ?
a. may harm science if proved invalid
b. may be proved invalid by new discoveries
c. are weakened by frequent examinations
d. are too durable to change when re-examined
The percentages of the daily values on food packages are given in terms of a person requiring _____ calories each day.
Answer:
27% I think, I'm not sure
Explanation:
Cells that gather information and control body functions are ________.
Which of the following is classified as multicellular green algae?
1.Spirogyra
2.Ulva
3.Chlamydomonas
4.None Of The Above
Answer:
The correct answer option 2. Ulva.
Explanation:
Ulva is a flat green multicellular alga growing from a discoid holdfast. The membrane of the Ulva is 2 cells thin, translucent, and soft and grows attached with or without small disc-shaped holdfast.
The chloroplast is cup-shaped in some cases but a parietal plate in others with 1 to 3 pyrenoids in number. There are some Ulva species that are similar and difficult to differentiate.
Thus, the correct answer is option 2. Ulva.
Which of the following is a method used to prevent soil depletion?
a-Adding fertilizers
b-Planting grasses on slopes
c-Dune fences
please help please
"which rock type is associated with a high- energy environment (such as a very turbulent stream)?"
The rock type which is associated with a high- energy environment such as a very turbulent stream is called conglomerate rock. This sedimentary rock contains large rounded clasts. Small particles and/or chemical cement bind the rock together. These kinds of rocks may vary according to their compositions. These clasts which are round may be minerals such as quartz or these could be sedimentary, metamorphic, or igneous rock fragments. And the large clasts may be because a mixture of sand, mud and chemical cement bonded them together. These rocks are formed when sediments of rounded clasts of at least two millimeters in diameter accumulate.
Which discovery did Gregor Mendel make?
Traits are inherited independently of each other.
Traits are inherited as a tetrad.
Traits are inherited as homologous pairs.
Traits are inherited as a set, from one parent.
Answer;
Traits are inherited independently of each other
The discovery that Gregor Mendel made was that traits are inherited independently of each other.
Explanation;
-Genes located on different chromosomes will be inherited independently of each other. This is the principle of independent assortment. For example, Mendel cross-bred pea plants with round, yellow seeds and plants with wrinkled, green seeds. Only the dominant traits (yellow and round) appeared in the F1 progeny, but all combinations of trait were seen in the self-pollinated F2 progeny.
Which biome has the greatest area on earth?
The largest biome according to land in the world is Taiga, also known as boreal. It covers almost 30% of the world’s forest and by country it covers the land of North America, Canada and Russia. There are many categories of biomes according to their specific quality or reason like dessert, rainfall etc.
How are oceans directly affected by increased carbon dioxide concentrations in the atmosphere?
Oceans are becoming less acidic.
Oceans are becoming less turbid.
Oceans are becoming more acidic.
Oceans are becoming more turbid.
Answer:
Oceans are becoming more acidic.
Explanation:
Increased concentrations of carbon dioxide in atmosphere has led to more absorption of the gas by oceanic water. When dissolved in water, carbon dioxide has forms carbonic acid. Hence, increased carbon dioxide concentrations in air is making the oceans more acidic in nature. Increased acidity of oceans would adversely affect the aquatic life.
The myocardium receives oxygenated blood from the __________, which originate(s) from the __________.
The myocardium receives oxygenated blood from the coronary arteries, which originate from the aorta.
Explanation:The myocardium receives oxygenated blood from the coronary arteries, which originate from the aorta.
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Your friend says the helium in your birthday helium balloon comes from radioactive decays. what is your response?
Final answer:
Yes, the helium in your birthday balloon originally comes from the decay of radioactive elements such as uranium. This helium is trapped in natural gas deposits, extracted, and compressed into cylinders for various uses, including filling balloons.
Explanation:
Your friend is correct. The helium gas in your birthday balloon does indeed come from the decay of radioactive elements like uranium. In the earth's crust, uranium-238 and other radioactive elements undergo radioactive decay, releasing alpha particles. Each alpha particle consists of two protons and two neutrons, which is essentially a helium nucleus. Once these alpha particles capture two electrons, they become helium atoms. This process happens over millions and billions of years, and the helium produced can get trapped in natural gas deposits, which are then extracted and eventually filled into your balloons.
The process of getting helium into a balloon involves extracting it from the earth, where it has been generated through radioactive decay, and then storing it in large metal cylinders under high pressure. When you buy a helium-filled balloon, the seller fills it from one of these cylinders. The ability of helium to leak through the balloon material over time is due to its small atomic size, leading to the balloon deflating.
______ causes diffusion of new water molecules out of the xylem and into the leaf.
1.Transpiration
2.Pollination
3.Photosynthesis
4.None Of The Above
Answer:
1. Transpiration
Explanation:
Transpiration is a physiological process by which plants lose water in the form of vapours through the aerial parts of a plant. Transpiration may be stomatal, cuticular or lenticular. But most of the transpiration is carried out through stomata. It is a wasteful process but it is necessary for the plants as it promotes water absorption and gives a cooling effect to the plants.
High blood levels of the amino acid ________ have been linked to increased risks of cardiovascular disease.
In two or more complete sentences, explain the relationship between climate change and the greenhouse effect.
The relationship between climate change and the greenhouse effect is that when the rate of the greenhouse effect may increase, it directly impacts the phenomenon of climate change in negative aspects.
What is Climate change?Climate change may be defined as significant and major changes in global temperature, precipitation, wind patterns, and other measures of climate that remarkably takes place over several decades or longer.
Climate is the long-term pattern of weather in a particular area. It can typically provoke global weather patterns due to human activities. It consists of changes that typically result from different factors, like deforestation, and the combustion of fossil fuels that stimulate an increase in greenhouse gases.
Apart from this, Global warming is one type of climate change, and it refers to the gradual increase in temperature of the surface of the Earth.
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A social-conflict analysis suggests that schooling in the united states developed in the late nineteenth century because that was the time that