If the 14C level of fossils is 73% compared to living organisms. It will be 2602 years.
What is radiocarbon dating?This method is used to estimate the relative age of carbon-based materials. This is done usually for fossils which originate from living organisms.
This age is estimated by estimating the percentage of carbon-14 isotopes in the fossil. This is done by comparing this percentage to a reference standard used internationally. This method is of tremendous use in palaeontology. It has also found its use in hydrology, oceanography, geology etc.
Fossil age is determined by
At = (Ao) x (1 - 0.5)^(t/h)
Here, At/Ao = 0.73
So, 0.73 = 0.5^(t/5730)
Therefore, t = 2602 years
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The portion of the small intestine that attaches to the cecum is the? appendix. ileum. haustrum. jejunum. duodenum
The portion of the small intestine that attaches to the cecum is the Ileum.
Hence Option (b) is correct.
With a length of almost 1.8 m(6 feet), the ileum is the section of the small intestine that is the longest.
Compared to the jejunum, it is thicker, more vascular, and has more advanced mucosal folds.
At the ileocecal sphincter, the ileum connects with the cecum, the first segment of the large intestine (or valve).
The small intestine's coiled tube is separated into three sections. These are the duodenum, jejunum, and ileum, arranged proximally (at the stomach) to distally.
The 25.4 cm (10 in) long duodenum, which starts at the pyloric sphincter, is the shortest section.
The jejunum connects the duodenum to the ileum and is roughly 0.9 m (3 feet) long (in life). The jejunum and the ileum, the last section of the small intestine, do not have a distinct boundary.
Hence, The portion of the small intestine that attaches to the cecum is the Ileum.
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During gastrulation, the blastomeres fuse. three germ layers are formed. the placenta penetrates the endometrium. the neural tube closes. cells from the hypoblast move to the epiblast
During gastrulation, three germ layers are formed.
Gastrulation:The process of gastrulation, during which the hollow ball of cells known as the blastula starts to differentiate into more specialized cells that get stratified over the growing embryo, is when the germ layers are formed.
One of the most important stages of development, gastrulation produces the three basic germ layers (ectoderm, endoderm, and mesoderm) and primes the system for organogenesis.
Each germ layer's cells undergo differentiation to become tissues and embryonic organs. The nervous system and the epidermis are two examples of tissues that develop from the ectoderm. The body's connective tissue and muscle cells are derived from the mesoderm.
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What body systems are primarily affected and what physiological changes would you expect joe and frank to experience during such vigorous exercise?
Cardiovascular system, respiratory system, circulatory system and muscular systems are the body systems which are primarily affected during vigorous exercise.
During rigorous exercises, a number of body systems get affected. The cardiovascular system is affected as the heart starts working at its maximum level and the blood is pumped faster using circulatory system.
This in turn affects the muscular system and the muscles of the body would work hard and eventually become fatigued. The respiratory system gets affected as we also get out of breath. This overwork by our body systems can leave us feeling dizzy as well as fatigued.
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The interior of a neuron is more negative than the outside due to the presence in the interior of?
The interior of the neuron is negative than the outside due to the presence of protein and chloride ions.
In contrast to the positive charge in an extracellular matrix, neurons actually have a strong negative charge inside them. This is due to the abundant accumulation of anions (negatively charged ions).
These anions are large molecules which cannot leave through any channel. So, they simply stay put and give the cell a negative charge inside.
The commonly present anion is chloride ion which keeps the neuron resting membrane potential in -70mV. If the neuron needs to conduct electrical impulse, neuron will then reach +40mV action potential by opening many cation channels (for example, Na/k channel).
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The interior of the neuron is negative than the outside due to the presence of protein and chloride ions.
Why is a neuron charged even at resting state?At rest, a neuron is negatively charged. A typical neuron has -70 mV charge on it, i.e., it is 70 mV more negative on inside than outside.In a resting neuron, there is more K+ on the inside the cell than outside and more Na+ on the outside than inside.For each potassium ion present, there is an organic anion to balance it.Therefore organic anions like those of amino acids and proteins are in higher concentrations on the inside of cell than outside.Also the membranes are leaky for K+ as it can pass with the help of K+ channels causing positive charge to move outside the cell. However, the organic anions cannot move out resulting in more negative charge inside the cell.Learn more about neurons here:
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Polysaccharide digestion and glycogen breakdown involve sequential cleavage from ________ ends of glucose polymers.
Sequential cleavage from the non-reducing terminals of glucose molecules is required for both glycogen degradation and polysaccharides hydrolysis.
Why non-reducing end is selected for digestion?
A polysaccharide's non-reducing end is the one where an anomeric carbon participates in the glycosidic connection. The elimination of carbohydrate remnants one at a time out from the non-reducing terminal occurs during glycogenolysis and polysaccharides hydrolysis.
For example, several enzymes are involved in glycogenolysis in the liver and muscle. An example of such an enzyme is glycogen phosphorylase, which catalyzes the successive dissociation of the alpha 1->4 glycosidic bond that connects two glucose molecules at a non-reducing terminal of glycogen. The last glucose residue is eliminated as alpha-D-glucose 1-phosphate.That is why non-reducing end of glucose is chosen for digestion or breakdown of the carbohydrate polymer.
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The portions of the mature mrna where rna-binding proteins can attach in order to change rna stability are known as?
Lake jackson has disappeared and reappeared about four times since 1907. which of these most likely caused lake jackson to disappear and reappear? weight of water collapses limestone below it; water drains into the sinkhole pollution due to factories; water evaporates quickly high atmospheric temperature; water evaporates quickly natural absorption of water by the land; water drains into the aquifer
Water drains into the sinkhole pollution due to factories
The lake was created as limestone gradually dissolved, causing the sediment layer above it to collapse and creating the lake basin. Low lake levels and slow draining can be caused by bottom leaks, sinkholes, and swallets, long-term dryness, and a lack of recent, strong rainfall events.
What causes lake Jackson to disappear ?Before the lake dried up, those walking along the shore of the sinkhole at Lake Jackson on Thursday would have been in three to four feet of water.
Environmentalists refer to the process as a "dry down," and it occurs every ten or twenty years. The likelihood of causes includes dry weather, a lack of rain, and a decreased water table.The lake will typically begin to fill again after the sinkhole plugs itself, sometimes taking years to do so pre sinkhole levelLearn more about Lake Jackson here:
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Answer:
Sinkhole
Explanation:
You could probably look it up to, but they say that lake Jackson the Lake disappear cause of a sinkhole.
Good luck :D
Epinephrine activates the cyclic amp pathway. in this example, epinephrine is a(n) __________ and camp is a(n) __________
Epinephrine activates the cyclic amp pathway. in this example, epinephrine is a(n) first messenger and camp is a(n) second messenger
Epinephrine belongs to a class of drugs known as alpha- and beta-adrenergic agonists (sympathomimetic agents). It acts by relaxing the airway muscles and constricting the blood vessels. Epinephrine injection is used to treat severe allergic responses (including anaphylaxis) to insect bites or stings, drugs, foods, or other substances in an emergency.
It is also used to treat anaphylaxis caused by unknown chemicals or exercise-induced anaphylaxis. Epinephrine acts swiftly to enhance breathing, accelerate the heart, boost blood pressure, reverse hives, and reduce swelling of the face, lips, and throat.
Increased vascular smooth muscle contraction, pupillary dilator muscle contraction, and intestinal sphincter muscle contraction are all caused by epinephrine. Other noteworthy effects include increased heart rate, myocardial contractility, and beta-1 receptor-mediated renin release.
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Translation begins at a ______ codon which is _____ and ecodes for the amino acid ________
Translation begins at an AUG codon and encodes for the amino acid
The translation is the process by which ribosomes in the cytoplasm or endoplasmic reticulum make proteins after the process of converting DNA to RNA in the cell's nucleus, as defined by molecular biology and genetics.
A messenger RNA (mRNA) molecule's genetic code is deciphered during translation, which results in a precise order of amino acids in a polypeptide chain. Similar to transcription, it takes place in the cytoplasm after DNA transcription and has three stages: initiation, elongation, and termination.
The process by which information contained in messenger RNA (mRNA) guides the addition of amino acids during protein synthesis is known as translation in the context of genomics.
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A percutaneous ____________________ is a minimally invasive procedure that is performed to treat osteoporosis-related compression fractures of the spine.
A percutaneous vertebroplasty is a procedure which is minimally invasive that is performed in order to treat osteoporosis related compression fractures of the spine.
Vertebroplasty is a procedure which helps stabilizing the spine by treating the compression fractures in it. This is done by injecting the bone cement into the vertebrae on the back bones which has been broken or cracked due to osteoporosis.
The added cement hardens up and helps in the stabilizing the fractures present in the spine and supporting it. This procedure in minimally invasive as it is done through just through a small puncture in the skin instead of open incision.
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PLEASE HELP:
Lungs take in and release air.
Which statement about lungs shows how structure is related to function?
A. Lungs are large and spongy.
B. Lungs are small and spongy.
C. Lungs are large and rigid.
D. Lungs are small and hollow.
Answer:
D.
Explanation:
as I read the statement I could easily imagine a small hollow bag like thing. for imaginig spongy shape I might need more details and taking in and releasing out makes imagine something a pump or similiar.
The statement that shows how structure is related to function in lungs is option A, "Lungs are large and spongy."
What is the structure of lungs?The large size and spongy texture of lungs provide a large surface area for gas exchange to occur. The alveoli, tiny air sacs within the lungs, are where oxygen and carbon dioxide are exchanged between the lungs and the bloodstream.
The spongy texture of lungs allows for the expansion and contraction needed to facilitate breathing, as well as the movement of air into and out of the alveoli. Therefore, the size and texture of the lungs are important features that enable them to carry out their critical functions of taking in and releasing air.
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In a human cell the molecule that most frequently interacts with ionizing radiation is?
In a human cell the molecule that most frequently interacts with ionizing radiation is DNA.
Any cell's DNA can be changed by radiation. Somatic or nonheritable effects refer to cell damage and death brought on by mutations in somatic cells that solely affect the organism in which the mutation occurred.In the event that ionizing radiation contacts with a DNA macromolecule, the energy released may cause a chemical bond to be broken and may even sever one of the sugar-phosphate chain side rails, or strands, of the molecular structure that resembles a ladder (single-strand break). A point mutation is the term used to describe this kind of DNA damage.By causing DNA breaks, especially double-strand breaks (DSBs), ionizing radiation directly changes DNA structure. The production of reactive oxygen species (ROS), which oxidize proteins and lipids and also cause various DNA damage, is one of the secondary effects.
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What should you do if every dilution of your sample results in a plate that is too few to count?
The original sample must be refilled and the most probable number (MPN) approach must be used if each dilution of the sample yields too few plates to count.
What is the most probable number(MPN) method?
The most probable number (MPN), a statistical technique based on the idea of extinction dilution, is used to calculate the number of bacteria that are likely to be present in a sample. It is frequently used to estimate the number of bacteria in food and water. However, the technique can only count living creatures. According to Food and Drug Agency (FDA) guidelines, which state that the maximum allowable limit in seafood is 10,000 cells per gram, it is imperative to count V. parahaemolyticus from seafood.
Why is the MPN technique crucial?
When samples include particulate matter that obstructs plate count enumeration techniques, MPN(most probable number) tests are particularly helpful. In order to determine if the water is safe to drink in terms of the number of bacteria present, MPN is most frequently used to assess the quality of water.
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what does the model represent?
Answer:
D) a molecule of oxygen
Answer:
An oxygen atom
Explanation:
its not a neutron, nor the oxygen's atomic mass (I hope you'll know what that is), and a molecule of oxygen is two oxygens atoms together, 02. Hope this helps.
When randomly selecting an adult, a denotes the event of selecting someone with blue eyes. What do and represent?.
P(A) represents the probability of selecting an adult with blue eyes.
P(Ā) represents the probability of selecting an adult who does not have blue eyes.
What is probability?Probability is a measure of how likely an event is to occur. Many events are impossible to predict with absolute certainty. We can only predict the chance of an event occurring, i.e., how likely it is to occur, using it. Probability can range from 0 to 1, with 0 indicating an impossible event and 1 indicating a certain event. The probability of all events in a sample space equals one.
[tex]Probability of event to happen P(E) = Number of favourable outcomes/Total Number of outcomes[/tex]
There are three major types of probabilities:
Theoretical ProbabilityExperimental ProbabilityAxiomatic ProbabilityWhat is Theoretical Probability?It is based on the possible chances of something to happen. The theoretical probability is mainly based on the reasoning behind probability. For example, if a coin is tossed, the theoretical probability of getting a head will be ½.
What are Complementary Events?The possibility that there will be only two outcomes, stating whether or not an event will occur. Examples of complementary events include a person coming or not coming to your house, getting a job or not getting a job, and so on. Essentially, the complement of an event occurring in the exact opposite probability that it will not occur. Here are some more examples:
Today will either rain or not rain.The student will either pass or fail the exam.You either win or you don't.Learn more about probability distribution:
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The correct answer is P(A) represents the probability that the adult selected has blue eyes.
P(Aˉ) represents the probability that the adult selected does not have blue eyes.
What is Probability?
The ratio of favorable outcomes to all possible outcomes of an event is known as the probability.
P(A) denotes the probability of an event A; in this case, it is given that A is the event of selecting someone with blue eyes.
P(Aˉ) denotes the probability that A does not occur. It signifies that the adult chosen in this instance won't have blue eyes.
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The correct question is:-
When randomly selecting an adult, A denotes the event of selecting someone with blue eyes. What do P(A) and P(Aˉ) represent?
For a gene with two alleles, s and s, if the frequency of the one allele (s) is 0.25, then the frequency of the other allele(s) is?
For a gene with two alleles S and s, the frequency of the other allele can be found out by using Hardy Weinberg Equilibrium.
According to the Hardy Weinberg Equilibrium, the sum total of all allelic frequency is equal to one for a random mating population.
As per the the given question, the frequency of one allele i.e. s is 0.25 that means the frequency of the other allele i.e. S can be found out using the given relation:
∴ s + S = 1 (Hardy Weinberg Equilibrium)
⇒ 0.25 + S = 1
⇒ S = 1 - 0.25
⇒ S = 0.75
So, the Frequency of the other Allele (S) is 0.75
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What is the difference between nutation and barycenter?
(I at least need 3 sentences minimum. thank u!)
Generally speaking, precession is believed to occur as a result of the gravitational forces exerted by the sun and moon as they revolve around the earth. When an object revolves, its axis of rotation exhibits a nodding or swish motion. There is a wobble in the movement of precession. This phenomenon is caused by the gravitational pull exerted by one body upon another, resulting in nutation.
Hope this helps :)
Groups of nerves that accumulate over a region and intercommunicate are called a:_________
Plexus
In a plexus, nerve fibres from many spinal nerves are sorted and recombined to form a single nerve that contains all of the fibres that travel to a particular body area. There are four nerve plexuses in the body's trunk: The head, neck, and shoulder are all connected to the spinal cord by the cervical plexus.
What are Nerve cells ?A particular kind of cell that relays information from the body to the brain and back to the body. A modest electrical current is used to transmit the messages. also known as a neuron.
The cells that take in sensory information from the outside world, provide motor commands to our muscles, and transform and relay electrical signals at each stage along the way.Learn more about Nerve cells here:
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PLS HELPPPPPP
The image below shows how wolves and dogs compare to some other animals in the levels of classification.
An image of classification levels of dog is shown. There are 8 columns and 7 rows. The top row says Animalia and then lists the following organisms from left to right, Insect, Fish, Rabbit, Cat, Fox, Jackal, Wolf, and Dog. The second row says Chordata and lists the following organisms from left to right, Fish, Rabbit, Cat, Fox, Jackal, Wolf, and Dog. The third row says Mammalia and lists the following organisms from left to right, Rabbit, Cat, Fox, Jackal, Wolf, and Dog. The fourth row says Carnivora and lists the following organisms from left to right, Cat, Fox, Jackal, Wolf, and Dog. The fifth row says Canidae and lists the following organisms from left to right, Fox, Jackal, Wolf, and Dog. The sixth row says Canis and lists the following organisms from left to right, Jackal, Wolf and Dog. The seventh row says Canis lupus and lists the following organisms from left to right, Wolf and Dog.
Based on the chart, how are insects and dogs related?
They belong to the same kingdom, but different phyla.
They belong to the same domain, but different kingdoms.
They belong to the same kingdom and phylum.
They belong to the same domain and phylum.
Answer:
it's answer D let me know if it's wrong
Dogs and insects belong to the same kingdom, but insects belong to phylum Arthropoda. Thus, the answer is option A.
An insect is a six legged Arthropoda.
Phylum : Arthropoda (with several classes)
Class: Insecta (Hexapoda)
A dog is a mammal of family Canidae.
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Like wolves and other canids, dogs are bred exclusively to hunt and consume other animals for their food. They can run quickly and for long periods of time when pursuing prey thanks to their compact, muscular bodies and long legs.
Thus, the insects and dogs are related by being in the same kingdom, but they belong to different phyla. The answer is A.
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What is the most common presenting objective symptom of a urinary tract infection in older adults, especially in those with dementia?
The _ states that the forces that are changing Earth's surface today are the same forces that changed Earth's surface in the past
The uniformitarianism states that the forces that are changing Earth's surface today are the same forces that changed Earth's surface in the past which is because of the presence of the same types of agents being present.
What is Uniformitarianism?This type of doctrine which was founded by James Hutton and made popular by Charles Lyell in the 19th century talks about how the earth's geologic processes are the same as a result of the agents of weathering being the same in this type of scenario.
Weathering on the other hand can be defined as the process in which rocks are broken down into smaller particles to form different types of soil. The agents of weathering has been the same today and in the past which makes it constant.
Hence, the reason why Uniformitarianism was chosen as the most appropriate choice.
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Which enzyme listed would you expect to have increased activity in response to a higher than normal concentratio of epinephrine?
Adenyl cyclase is the enzyme would you expect to have increased activity in response to a higher than normal concentration of epinephrine. As epinephrine levels rise, adenylyl cyclase is activated in muscle cells, increasing glycogenolysis.
The glucose-6-phosphate produced by glycogenolysis is utilised directly in glycolysis since it cannot be converted into free glucose and expelled from the muscle cell. Adenylyl cyclase is activated once epinephrine attaches to its receptor on the target cell and after the energy-rich molecule adenosine triphosphate, or ATP, is hydrolyzed to produce cAMP.
The phosphate creates two bonds to the adenine base in cAMP, a new form of adenosine monophosphate (AMP).
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In aerobic respiration, nadh is oxidized at _____, while fadh2 is oxidized at _____.
Complex 1
Complex 2
In aerobic respiration, NADH is oxidized at Complex 1, while FADH2 is oxidized at Complex 2.
What is aerobic respiration?In the presence of oxygen gas, cells undergo cellular respiration, which is how energy from food is produced. The majority of plants, animals, birds, humans, and other mammals all engage in this sort of respiration regularly. As byproducts of this process, water and carbon dioxide are created.Which five steps make up aerobic respiration?Glycolysis, pyruvate oxidation, Krebs's cycle, the electron transport chain, and chemiosmosis are the five steps that must occur for aerobic respiration to take place.What is glycolysis?A cytoplasmic mechanism called glycolysis converts glucose into two molecules with three carbons each and releases energy. Hexokinase, a phosphorylating enzyme, assists in the phosphorylation process that traps glucose. This reaction uses adenosine triphosphate (ATP), and the end result, glucose-6-P, inhibits hexokinase.What is pyruvate oxidation?It takes place in the cytoplasm of prokaryotes. Overall, pyruvate oxidation transforms the three-carbon molecule into the two-carbon molecule acetyl CoA , C, o, A, which is attached to Coenzyme A. This results in a NADH , N, A, D, H, and the release of one carbon dioxide molecule.What is Krebs cycle?The primary source of energy for cells and an essential component of aerobic respiration is the tricarboxylic acid (TCA) cycle, sometimes referred to as the Krebs or citric acid cycle. The cycle converts the acetyl coenzyme A (acetyl CoA) chemical energy into the reducing force of nicotinamide adenine dinucleotide (NADH).What is Electron transport chain?The oxidative phosphorylation process, also known as the electron transport chain, is a collection of four protein complexes that combine redox events to produce an electrochemical gradient that results in the production of ATP. Both photosynthesis and cellular respiration take place in mitochondria.What is chemiosmosis?The process of ions (often H+ ions, commonly referred to as protons) diffusing across a membrane that is selectively permeable is known as chemiosmosis. Chemiosmosis produces a concentration gradient of the diffusing ion across the membrane, similar to osmosis. Potential energy that can perform work is present in concentration gradients.To learn more about aerobic respiration visit:
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Why does the sky change colors at sunset?
The atmosphere reflects colors.
The atmosphere bends light.
The sun changes colors.
The atmosphere reflects colors
Explaination :
More atmosphere means more molecules to scatter the violet and blue light away from your eyes. If the path is long enough, all of the blue and violet light scatters out of your line of sight. The other colors continue on their way to your eyes. This is why sunsets are often yellow, orange, and red.”
All the wavelengths of light are collectively called the ___________________________ spectrum
The "electromagnetic spectrum" is a term used to describe all light wavelengths.
What is the electromagnetic spectrum?
Scientists refer to the complete range of visible light as the "electromagnetic spectrum". In reality, the majority of the lights in the cosmos are hidden from our view, ranging from radio frequencies to gamma radiation. An alternating magnetic and electric field forms the wave of light.The whole "electromagnetic spectrum" is used by NASA's scientific equipment to examine Planet, the entire universe, and the cosmos beyond. Electromagnetic energy is used when you tune the transmitter, watch Television, and transmit a message.What are the "electromagnetic spectrum's" wavelengths?
The term "electromagnetic spectrum" (EMS) refers to the whole spectrum of radiation that is now understood. Wavelengths rise from around 10⁻¹⁸ meters to 100 km, while frequencies fall from 3 x 10²⁶Hz to 3 x 10³ Hz in this range.
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Identify whether or not the different agents of evolutionary change could affect allele frequencies in a population?
Yes, the different frequencies of evolutionary change could affect allele frequency in a population.
What are the agents of evolutionary change?All populations are usual in a constant state of evolution. This means that all the species are continuously changing their genetic makeup over different generations. These changes can be subtle or they can be spontaneous.
If a population is not evolving, it is said to be in Hardy - Weinberg state. In this state, the allele frequency and the genetic makeup of the population will remain the same across generations.
The agents of evolutionary change defy the Hardy - Weinberg state. These are mutation, gene flow, non-random mating, natural selection and genetic drift.
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Name the gland cells of the epithelium in the small intestine.
Goblet cells, unicellular gland cells, enteroendocrine cells of the epithelium in the small intestine.
What is epithelium?Layers of cells known as "epithelium" line hollow organs and glands. These cells are also responsible for the body's exterior.The epithelium is a type of body tissue that covers all of the internal and exterior body surfaces, lines hollow organs and body cavities, and makes up the majority of glandular tissue.They make up the majority of the tissue in glands, line body cavities and hollow organs, and cover all of the body's surfaces. They conduct a multitude of activities that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.Because word was first used to describe the translucent layer of tiny tissue "nipples" on the lip, epithelium got its name. The plural version of the term is epithelia, and it has both mass and count connotations.A form of animal tissue known as an epithelium is composed of tightly packed cells, or epithelial cells, that lie atop a basement membrane. Its purpose is to cover or line different bodily surfaces and cavities.
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Drag each tile to the correct box. lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the events chronologically. interneurons relay the impulse to motor neurons in the spinal cord. she immediately moves her foot. the sensory neuron generates an impulse. receptors in her toe receive stimuli.
The sequence of events that will occur are as follows:
Receptors in her toe receive stimuli.The sensory neuron generates an impulse. Interneurons relay the impulse to motor neurons in the spinal cord.She immediately moves her footWhat is Nervous System?The brain, spinal cord, and nerves make up the nervous system. It greatly affects how you feel and think, as well as how your body behaves. You can walk, speak, swallow, breathe, and learn thanks to it. It also regulates the body's emergency response.
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A fungi-plant mutualism is discussed in the reading. How does this fungi-plant mutualism work?
Mycorrhiza, or the association of a fungus with plant roots, and lichen (fungi with blue-green algae combination)are two typical mutualistic connections involving fungi.
Discussion about mutualism-
Many fungi cause plant harm or death. Although there are fungi that are advantageous to plants:
The majority of terrestrial plants are closely allied with arbuscular mycorrhiza fungus (AM fungi), which promote their expansion. A gene that is especially triggered by arbuscular mycorrhiza (AM) fungus and affects the growth of the plant root has been discovered by scientists who have examined the evolution of this symbiosis: MIG1, a GRAS transcription factor, promotes the growth of bigger and more numerous root cortical units.Both parties are benefitted: The arbuscular mycorrhiza (AM) fungus defends the plants against pests, aids in the extraction of minerals from the soil, including urea, phosphorus, and groundwater, and encourages plant development by affecting root formation.Learn more about mycorrhiza here:
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In mri, structural information about the brain can be collected by using strong magnetic fields together with radio waves to manipulate the nuclear _______________ of protons.
none of the answers in this list of options fills the blank. Strong magnetic fields created by the powerful magnets used in MRIs compel the body's protons to align with the field.
The protons are activated and spin out of equilibrium when a radiofrequency current is then pulsed through the patient, struggling against the magnetic field's pull.Because protons can spin either left or right, which corresponds to a distinct energy state, they have multiple spin configurations. Higher energy states are experienced by protons that align against the external magnetic field as opposed to lower energy states experienced by protons that do so.The hydrogen protons will align themselves once more with the static magnetic field once the energy from the RF pulse is lost. Hydrogen protons serve as the source of the MRI signal since they move back into alignment with the magnetic field, and fall out of "phase" with each other.DISCLAIMER
In MRI, structural information about the brain can be collected by using strong magnetic fields together with radio waves to manipulate the nuclear _______________ of protons.
electron
mass
none of the answers in this list of options
charge
number
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