(D) "There would be a minimal reduction in efficiency since both isolates were Gram negative." is how would that influence the extractions that you performed.
For the purpose of dissecting cells for use in molecular biology investigations that examine the labile macromolecules of the cells, lysis buffers are buffer solutions (e.g. western blot for protein, or for DNA extraction). To control the pH and osmolarity of the lysate, most lysis buffers include buffering salts like Tris-HCl and ionic salts like NaCl.
In healthcare settings, gram-negative bacteria can cause diseases such pneumonia, bloodstream infections, wound or surgical site infections, and meningitis. Gram-negative bacteria are becoming more and more resistant to the majority of existing antibiotics, as well as to a number of other medications.
Since both isolates were Gram negative, there would be a little drop in efficiency.
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Question correction:
The lysis buffer used in this lab exercise is a generic bacterial lysis buffer. That means it does a decent job lysing common bacteria, such as Gram positive and Gram negative bacteria. Lysozyme is included in this buffer to degrade peptidoglycan. Thick layers of petidoglycan prevent the other components of the lysis buffer from being able to access and destabilize the cell membrane and, therefore, reduce lysis efficiency. If the lysozyme were to have been left out of the buffer when it was prepared, how would that influence the extractions that you performed?
A. There would be a marked reduction in efficiency since both isolated were Gram positive. Incorrect The extraction would fail as lysozyme is absolutely required.
B. Salmonella isoaltes would have minimally reduced efficiency while non-Salmonella isolates would have markedly reduced efficiency.
C. Salmonella isoaltes would have markedly reduced efficiency while non-Salmonella isolates would have minimally reduced efficiency.
D. There would be a minimal reduction in efficiency since both isolates were Gram negative.
Record your data from each trial in the data chart below:
Type of Factor
Beginning Frog Count
Simulation 1 (Low)
Simulation 2 (High)
Predators (alligators)
Pollution
Food (mosquitoes)
Limiting factors are the biotic and abiotic environmental elements that model a species population size affecting their carrying capacity. 1) alligators and mosquitoes 2) pollution 3) alligators 4) pollution 5) frogs are control species 6) + alligators, - frogs // + mosquitoes, + frogs.
What is a limiting factor?Limiting factors are all the environmental elements, biotic and abiotic, that act directly on populations and individuals, limiting their distribution and growth.
These factors affect the carrying capacity, influencing on natality and mortality rate, migration, etcetera.
In the exposed example, limiting factors are
Alligators (predator)Pollution Mosquitoes (food)These three elements model the Frog population size according to their magnitude and population sizes.
Two simulations per factor were performed in order to see how much each factor affected the frog's populations.
The data chart shows the following tendency,
Alligators
- Low number of alligators → there was an increase in frogs number from
10 to 18.
- High number of alligators → there was a decrease in frogs number from
10 to 3.
Pollution
- Low pollution level → there was no change in frogs number
- High pollution level → there was a decrease in frogs number from
10 to 7.
Mosquitoes
- Low number of mosquitoes → there was a decrease in frogs number
from 10 to 5.
- High number of mosquitoes → there was an increase in frogs number
from 10 to 17.
Information from the graph expresses thesame tendency,
Alligators
- Low number of alligators → there was an increase from 50k to 90k.
- High number of alligators → there was a decrease from 50k to 10k.
Pollution
- Low pollution level → there was no change
- High pollution level → there was a decrease from 50k to 35k.
Mosquitoes
- Low number of mosquitoes → there was a decrease from 50k to 25k.
- High number of mosquitoes → there was an increase from 50k to 85k.
1. Which limiting factor(s) in this lab simulation are biotic?
Alligator (predator) and mosquitoes (food)
2. Which limiting factor(s) in this lab simulation are abiotic?
Pollution
3. Which limiting factor impacted the cricket frog population the most? Use evidence to support your answer.
According to the chart and to the graph, the presence/absence of predators impacted the most on the frogs population.
4. Which limiting factor impacted the cricket frog population the least? Use evidence to support your answer.
Pollution is the factor that least affected the frogs population size.
5. Mosquitoes can carry and transmit disease to animals and humans. Explain how the cricket frog plays an important role in limiting the spread of mosquito-borne illnesses like West Nile virus and malaria.
Since frogs feed on mosquitoes, they become a natural control species for the mosquitoes, limiting their spread and effects on humans and animals.
Frogs are a biotic limiting factor for moesquitoes population.
6. Predict the long-term effects of these limiting factors on the cricket frog population in the pond ecosystem.
It depends on the pond ecosystem.
If there are too many alligators, frogs population will decrease. This decrease will probably affect alligator population size (assuming no other source of food for this last species), and only when predator population size decreases, frogs population will increase again. If there are too many mosquitoes, frogs population will increase, which will cause a decrease in mosquitoes population. Less mosquitoes will drive to less frogs. The decrease in the number of frogs will increase the number of mosquitoes again.↑ alligators and ↑ mosquitoes ⇒ ↓ frogs
↓ alligators and ↑ mosquitoes ⇒s ↑ frogs
↑ alligators and ↑ mosquitoes ⇒↓frogs
↓ alligators and ↓ mosquitoes ⇒ ↓frogs
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What is the density of seawater with a temperature of 10°C and a salinity of 35 ppt?
Answer:
P(T)=P+ a1*T+a2*T2+a3*T3+a4 *T4+a5 *T5
Explanation
Given that the temperature = 10 degrees Celsius
Salinity= 35ppt
Density of the seawater is 996.73 kg/m3
which of the following statements about the cytoskeleton is true? although microtubules are common within a cell, actin filaments are rarely found outside of the nucleus. the cytoskeleton of eukaryotes is a static structure most resembling scaffolding used at construction sites. the cytoskeleton is produced by transport vesicles of the endomembrane system. movement of cilia and flagella is the result of motor proteins causing microtubules to move relative to each other. chemicals that block the assembly of the cytoskeleton would have little effect on a cell's response to external stimuli.
The answer is yes this is true, the dynamic aspect of cytoskeletal function is made possible by the assembly and disassembly of a large number of complex proteins into larger aggregates. There are three types of the cytoskeleton: actin filaments (microfilament), microtubules, and intermediate filaments.
What does cytoskeleton mean?All cells, including those of bacteria and archaea, have a complex, dynamic network of interconnecting protein filaments called the cytoskeleton. It stretches from the cell nucleus to the cell membrane in eukaryotes and is made up of identical proteins in different animals.The cytoplasmic protein filament and microtubule network that regulates cell shape, upholds intracellular structure, and participates in cell motility. Examples of Other Words from Cytoskeleton More information on the cytoskeleton.Contractile bundles (found in muscle cells), the MTOC, the nuclear lamina, and the intermediate filament-based 'cage' that forms around the nucleus from flexible cables at the cell surface to the core of the cell are a few examples of higher-order cytoskeleton structures.Hence, the above statement is true.
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PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
A right temperature
Explanation:
Only because you need warm air and wet but not too wet soil you don’t want you plant to drown and freezing temperatures will make it hard and when transferring the plant it will break, and flower petals make no sense.
The adaptive advantage associated with the filamentous nature of fungal mycelia is primarily related to ________.
The adaptive advantage associated with the filamentous nature of fungal mycelia is primarily related to an extensive surface area well suited for invasive growth and absorptive nutrition.
An adaptive advantage is a reproductive benefit an organism derives from being properly acceptable to the surroundings wherein it lives. Adaptive blessings are in all likelihood to result in an organism producing greater offspring than organisms without the adaptive benefit.
An adaptive advantage is an iterative approach to software development that includes hypothesizing, experimenting, and adjusting as teams move thru the manner.
An adaptive commercial enterprise approach enables a commercial enterprise to work proactively on a continual foundation to obtain lengthy-time period desires and fast adjust those desires whilst essential. that is accomplished by means of figuring out and speedy enforcing short-term techniques and movements to achieve bigger image goals.
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Write a Claim about how shared resources can be depleted and how to sustainably manage them
Shared resources can be depleted when used excessively and selfishly for one's interest only. For their sustainable management, the understanding should be inculcated that they are in limited quantities and hence should be used only when necessary and in required quantities.
Shared resources are those that are used by various individuals and populations at the same time. Due to their necessity they are in limited quantities and hence their efficient use is very essential. The examples of shared resources are fresh water bodies, grazing lands, forests, etc.
Sustainable management is the balanced use of resources so that they do not get depleted and are available for the use of the individuals.
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The main functions of blood are to A digest food and break it down to be used as energy. B carry oxygen, nutrients, and wastes; fight disease; and regulate temperature. C carry messages through all the body to direct body movement. D carry messages to parts of cells to tell them how to develop.
In a DNA molecule, the number of guanine nucleotides will most likely equal the number of
In a DNA molecule, the number of guanine nucleotides will most likely equal the number of cytosine.
According to Chargaff's rule, the ratio of adenine to Thymine is equals to ratio of Guanine to Cytosine.
What is chargaff's Rule?According to Chargaff's criteria, guanine and cytosine should be equal in amount in the DNA of every species and organism, and adenine and thymine should be equal in amount.
Since the amounts of cytosine and guanine are equivalent, we can just divide their total by 2. 22% adenine, 22% thymine, 28% cytosine, and 28% guanine make up the final makeup.
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All living organisms, including plants, animals, and microorganisms, carry out some form of cellular respiration in order to release energy to perform their daily activities. In which of the following Earth cycles do the products of cellular respiration play a major role?
Answer:
Carbon Cycle
Explanation:
Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it.
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O
Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O2
While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells. In our cells, oxygen allows cellular respiration to proceed. Cellular respiration works best in the presence of oxygen. Without oxygen, much less ATP would be produced.
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere.
True or False: Weather forecasting is an exact science? Meteorologists can pinpoint the exact location of a thunderstorm?
Answer: false
Explanation:
Though they can tell you the state and city it is hard to pinpoint the exact location. And weather normally changes closer to the day
in a dna double helix, adenine pairs with and guanine pairs with . a. cytosine... thymine b. uracil... cytosine c. guanine... adenine d. thymine... cytosine
In a DNA double helix, adenine pairs with Thymine and guanine pairs with cytosine.
The nitrogenous bases present in DNA are purine (guanine and adenine) and pyrimidine (thymine and cytosine). The process to complementary base pairing rule, the number of purines in DNA is equal to the number of pyrimidines which means in DNA, adenine (A) forms a bond with thymine (T), and guanine (G) forms a bond with cytosine (C).
The number of bonds present between A–T is two ,on the other hand bond between G–C is three. Which means G–C bonds are very hard to break. Uracil is a nitrogenous base present in RNA (ribonucleic acid) and is absent in DNA.
Hence ,the correct option is d
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suppose that fish size is a heritable trait in a population of fish. the allele conferring large size (s) is incompletely dominant to the allele conferring small size (s). heterozygotes (ss) are of intermediate size. suppose that a population of fish is at hardy-weinberg equilibrium and the frequency of the s allele is 0.9. what proportion of the next generation will be of intermediate size?
The proportion of dominating people in the following population is (1+4)%, or 5%.
The Hardy-Weinberg rule states that in the absence of evolutionary driving forces, allele and genotype frequencies in a population remain constant.
It claims that the binomial expansion of the square of the sum of p and q can be used to describe the total genotype frequencies.
The following sum equals one: (p+q) ²= p²+ 2pq + q².
In this instance, "p" represents the frequency of the dominant allele, and "q," that of the recessive allele. The expression "2pq" represents the population's frequency of heterozygotes.
The frequency of the dominant allele is given by p+q=1, while the frequency of the recessive allele is given by q = 0.9 for a certain hereditary trait. Consequently,
p=1-q
P=1-0.9 = 0.1
p²= (0.1) =0.01 or 1% of the population has a homozygous dominant genotype.
The percentage of heterozygous dominant genotypes in the population as a whole is 4% (PQ)² = 2 X 0.1 X 0.2 ".
∴ (1+4)%
=5%.
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Paleontologists find a fossil ape with long arms. What type of environment can they infer it inhabited?.
Paleontologists discover a fossil ape with long palms. Woodland of environment can they infer it inhabited.
A paleontologist is a scientist who studies the records of existence on earth via fossil documents. Fossils are the proof of beyond existence on earth and may encompass those shaped by animals our bodies or their imprints (body fossils).
Paleontology is the look at historical life, from dinosaurs to prehistoric flora, mammals, fish, insects, fungi, or even microbes. Fossil proof exhibits how organisms changed through the years and what our planet become like long in the past.
Invertebrate Paleontology: a study of invertebrate animal fossils, which includes mollusks, echinoderms, and others. Vertebrate Paleontology: have a look at vertebrate fossils, from primitive fishes to mammals. Human Paleontology (Paleoanthropology): The look at prehistoric human and proto-human fossils.
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Paleontologists find a fossil ape with long arms. The environment can they infer it inhabited is Woodland.
A paleontologist is a scientist who researches the records of existence on earth via fossil report. Fossils are the evidence of beyond life on the planet and can consist of those fashioned from animal our bodies or their imprints (frame fossils).
Paleontology also has some overlap with archaeology, which commonly works with items made by means of human beings and with human remains, while paleontologists are interested in the characteristics and evolution of humans as a species.
Palenolology, like most technological know-how careers, isn't always particularly nicely paid. it's a lot of work, frequently in harsh conditions, and recognition is not going. Paleontologists ought to scramble for grants to fund their paintings, and frequently need to gift to a couple of sources to get the money for their expeditions.
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How many different types of alleles for a particular gene are present in a homozygous organism?
a. 0
b. 1
c. 2
d. 3
e. 10
Answer: c. 2 alleles
atp production in halophilic archaea that contain bacteriorhodopsin differs from atp production in cyanobacteria in that only cyanobacteria choose one: a. are found in water. b. use light to excite electrons. c. oxidize water. d. create a proton motive for
Option c ATP (Adenosine triphosphate) production in halophilic archaea that contain bacteriorhodopsin differs from ATP production in cyanobacteria in that only cyanobacteria oxidize water.
A relatively recent functional water product called oxidize water has oxygen added to it during the canning or bottling process. It is asserted that the additional oxygen has health advantages, such as facilitating the body's detoxification process and enhancing the metabolism of alcohol. The liver, blood, and immune system appear to be unaffected by prolonged oxygenated water ingestion. In addition, it causes a brief, modest rise in oxygen radicals in the blood. Water that has been oxygenated can be useful if you want to improve the health of your skin naturally. That's because it can aid in oxygenating your skin cells, which can aid in enhancing the tone and texture of your skin. Your skin gets the oxygen it needs when it is oxygenated, so your skin cells can
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What are the 3 domains of development in psychology
Answer:
physical, cognitive, and psychosocial development.
Explanation:
during the digestion process, why are short-chain fatty acids more easily absorbed by the body? a. they are hydrophobic. b. they are somewhat water soluble. c. they contain bile. d. they convert to glycerol. e. they have formed chylomicrons
During the digestion process, why are short-chain fatty acids more easily absorbed by the body because they are somewhat water soluble.
the digestion process
The six actions that make up the digestive process are ingestion, propulsion, mechanical or physical digestion, chemical digestion process, absorption, and feces.
Ingestion, the first of these procedures, is the act of putting food via the mouth and into the alimentary canal. The meal is chewed there and combined with saliva, Both water-soluble (hydrophilic) and hydrophobic (water-insoluble) molecules can dissolve into a solution when water and an organic solvent are combined. Bilirubin diglucuronide is water-soluble due to its hydrophilic nature. Chemical and mechanical processes both take place during digestion. The process of mechanical digestion is simply physical and does not alter the chemical composition of the food. In its place, it shrinks the meal to enhance its surface area and mobility.
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a chain of repeating monomers to make a larger molecule
A chain of repeating monomers to make a larger molecule is called a Polymer.
Monomer-based compounds that combine to form polymers.
Large molecules known as polymers are constructed from single, comparable repeating components (monomers).
A polymer is made up of numerous monomers because the prefix poly- signifies "many" or "multi-."
Any of a group of organic or synthetic compounds known as polymers are made up of macromolecules, or very large molecules, which are just multiples of simpler chemical building blocks known as monomers. Numerous natural and man-made materials, as well as a large portion of the components in living things, are composed of polymers.
A polymer is created when many monomers are linked together. Polymers can be compared to a chain of interconnected paperclips in several ways. A polymer is a big molecule consisting of monomers, which are littler molecules bonded together.
Plastic is a subset of polymer since all plastics are polymers but not all polymers are plastic. Plastics are long-chain molecules created by large monomers while polymers are homogenous molecules created by small monomers. Plastics are manmade materials yet polymers can also be natural.
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The results of one experiment carried out by a research team would be considered valid if
A) All the members of the research team came to the same conclusion
B) The experiment had more than 1 variable
C) The experiment was repeated and same results were obtained each time
D) The experiment had no control set up
Answer:
c
Explanation: hope it helped
Which of the following is an example of a physical property? a Melting and boiling points b color c Ability to conduct electricity d All of the above
Answer:
all above.
Explanation:
I had the same question for k12.
What is the mass of a crate if a force of 200 N causes it to accelerate at 8 m/s2? (Formula: F=ma)
25 kg
192 kg
208 kg
16 kg
M
why dont ppl consider ice as salty water?
Answer: because salt can be used to speed up the freezing process but it is not necessary to the creation of ice
bioremediation uses microbes that choose one: a. can modify environmental toxins through normal metabolism. b. can reproduce rapidly and overcome other microbial species. c. are parts of the microbiome. d. can assimilate nitrogen into nitrate.
Bioremediation uses microbes that a. can modify environmental toxins through normal metabolism.
Bioremediation broadly refers to any process wherein an organic system, living or useless, is hired for casting off environmental pollution from the air, water, soil, flue gasses, industrial effluents, and many others., in natural or artificial settings.
Bioremediation technique is degrading, getting rid of, changing, immobilizing, or detoxifying numerous chemical compounds and physical pollutants from the environment via the interest of bacteria, fungi, algae, and plants.
Bioremediation allows for smoothing up water sources, creating more healthy soil, and improving air great around the globe. but not like excavation-based totally remediation techniques, which may be disruptive, bioremediation is less intrusive and might facilitate remediation of environmental impacts without adverse sensitive ecosystems.
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Humans are omnivores as shown by the type ofa. enzymes secreted in saliva b. urine they produce c. teeth they have d. taste buds they have
Answer
C - teeth they have
Explanation
Answer:
C. Teeth they have
Explanation:
Carnivores, herbivores and omnivores may have some similarities in the shape and size of teeth, but each have teeth that are specifically adapted to the drastically different diets these animals consume.
1. at 20 seconds into the race, anaerobic glycolysis is responsible for atp in muscle contraction, what would be the primary substrate fueling this system? why? 2. what is a by-product of anaerobic glycolysis? what is something you have heard about this by-product related to exercise and sport? 3. at 38.6 seconds, the aerobic is predominate. why would carbohydrates (glycogen) and not fats be the fuel source for atp synthesis? bonus: (1 point) feedback on watching an event to understand the energy systems rather than just reading about it.
Here are the answers per question:
1. Whether glycolysis is conducted in anaerobic or aerobic conditions, glucose will serve as the substrate if at 20 seconds into the race, anaerobic glycolysis is responsible for atp in muscle contraction.
2a. Lactate is the end product of anaerobic glycolysis.
2b. Muscle aches from strenuous exercise, sports, and physical activity are some products of lactate. Additionally, it develops during anaerobic respiration.
3. Since carbohydrates take less oxygen than fats to produce the same quantity of energy, they are used as an energy source initially rather than fats. Therefore, all muscles use carbs as their main source of energy, with the exception of the heart muscle, which uses lipids.
When there is a shortage of oxygen (O2), glucose is converted to lactate by anaerobic glycolysis. Only brief, intensive activity can effectively produce energy through anaerobic glycolysis, which can last anywhere between 10 seconds and 2 minutes.
Compared to aerobic metabolism, this is substantially quicker. During a maximum exertion, the anaerobic glycolysis (lactic acid) system predominates for roughly 10 to 30 seconds.
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Which level of organization is shown in the image?
• cell
• tissue
•organ
•organ system
please be fast
don’t guess
Answer: Are filtered as the water infiltrates the ground
Explanation:
The spring water filtration process occurs naturally through physical substrate, chemical means (chemically activated clay absorbing organic chemicals, pesticides, or heavy metals) and biological means (microorganisms in soil that aid in the water filtration process by acting as biological decomposers).
imagine that the middle head of the deltoid were the only muscle supporting the outstretched arm below. the muscle must support the weight of the arm plus a five pound weight. if we measured the force generated by the muscle is would be
If we measured the force generated by the muscle it would be more than 5 pounds.
Deltoid muscles play an important part in helping you move your arm in different directions. They also stabilize your shoulder joint and cover it from injuries analogous to dislocations. People who perform a lot of repeated above movements, analogous as insensibility, jugs, or mechanics, are at the trouble of injuring their deltoid muscles. utmost deltoid muscle injuries heal with nonsurgical treatments. The muscle supports the weight of the arm plus a five-pound weight.
It's present in your shoulder, which is the ball-and-socket joint that connects your arm to the box of your body. Like utmost other muscles in your body, the deltoids are cadaverous muscles. Tendons attach them to bones. Cadaverous muscles are voluntary muscles, meaning you choose to move them.
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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ASAP!!!!!!!!!!!!!!!!!!!!!!!!!
Studying photosynthesis shows us how God provides for us at even the molecular level. What does Scripture encourage us to do in response to God’s provisions, as mentioned in Matthew 6:28-34 ESV?
The Scripture encourage us to be steadfast and seek his kingdom in response to God’s provisions.
What is Provision?This is referred to as the process in which a material is provided or supplied and an example is food, clothing etc. God is the ultimate being and ensures that several resources are available for the various creatures which are present on earth.
The scripture talks about how we should be steady and seek his kingdom so as not to worry about tomorrow. This is because he has the ability to provide and take care of our needs if we have faith and believe in him.
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which of the following statements is false? in its interaction with hemoglobin, oxygen is: i. a prosthetic group. ii. a ligand. iii. bound at the 6th coordination position of the fe(ii) ion in the heme. iv. homoallosteric effector. v. reversibly bound.
The statement "In its interaction with hemoglobin, oxygen is a prosthetic group." (i) is false.
Each 's iron atom may attach to one oxygen molecule, enabling hemoglobin heme group to carry four oxygen molecules. Each heme group's iron atom may bind one oxygen molecule, giving hemoglobin its maximum ability to carry four oxygen molecules.
A unique non-protein element called a prosthetic group is necessary for some proteins to function. It is firmly attached to proteins. A prosthetic group can naturally take the shape of an organic lipid, vitamin, or sugar or an inorganic metal ion.
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