The momentum of a system is conserved when there is no external force applied on the object. This can be represented by mathematical expression: (m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂).
What is Momentum?
Momentum is a property of a moving object which the object has by the virtue of its mass and motion. It is the product of the body's mass and velocity.
Conservation of linear momentum expresses that a body or system of bodies in motion retains its total momentum. The product of mass and vector velocity constant, until and unless an external force is applied on it. In an isolated system, there is no external force, so momentum is always conserved.
To have the momentum conserved, a system must meet two requirements:
1. Total Mass of the system must remain constant during the interaction.
2. The net external force on the system must be equal to zero.
The mathematical expression for the conservation of momentum is:
(m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂)
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in the gapc gene (a.k.a. gapc), how many exons are not amplified by the primers used in the first round of pcr?
A minimum of two exons aren't amplified in the initial PcR cycle.
During an important procedure known as glycol illnesses, G A p C G is heated. I feel. The capitalization of black analysis and camps was appropriate. The damaging relationships between G A P C, daily hide, and cholesterol. Represents Venice Cyril D hiding the phosphate and Venice g ease hydrogen. Additionally, this gene is psychosomatic.
What about exons?The regions of a gene called exons code for proteins.Amino acids are coded for in exons, which are found in mRNA.Distinct protein domains are encoded by different exons.The domains might be encoded by a single exon or by splicing together many exons.A gene's introns and exons are nucleotide sequences.As RNA matures, introns are cut out via RNA splicing, which suggests that they're not expressed in the resulting messenger RNA (mRNA) product.In contrast, exons still are chemically sure to one another to produce mature mRNA.Exons are protein-coding regions of an RNA transcript or the DNA that encodes it that are translated.Introns are intervening segments of DNA that do not code for proteins and can be used to divide exons.The key thing to remain in mind is that codons are characteristics of RNA, whereas exons and introns are characteristics of DNA.Otherwise, there is a risk that the functions of DNA and RNA in the Central Dogma ("DNA creates RNA makes Protein") may be misunderstood.Homologous sequences within the opposite type of nucleic need to be referred to by a different name.Learn more about exons here:
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Use this model to describe unobservable relationships
I don't completely comprehend what you are asking for, but I will try my best to answer your question. First, we can notice that there are two bonds between Adenine and Thymine, while there are 3 bonds between Guanine and Cytosine. This suggests that bonded Guanine and Cytosine pairs are stronger than bonded Adenine and Thymine pairs. Additionally, we can conclude that Adenine and Cytosine are both purines, as in the model, both bases are depicted with a 6-membered ring fused to a 5-membered ring, which is what defines a purine. On the other hand, Thymine and Cytosine are both pyrimidines since, in the model, they are depicted with only one 6-membered ring, which is what defines a pyrimidine.
The female reproductive part of an angiosperm is the ____ and the male reproductive part is the _____
A.anther, stamen
B.pistil, stigma
C.stamen, pistil
D.pistil, stamen
Alexis is trying to determine a victim's time of death. What is the LEAST effective method she can use for determining their time of death?
O A
О в.
O C.
OD.
rigor mortis
livor mortis
algor mortis
indicative acts
Time of death is determined by the rigor mortis method, which is the most effective forensic method hence option a is correct.
What is an effective method to determine the time of death?
This stiffening process, known as Rigor Mortis, has a generally known recurrence period and may thus be used to determine the time of death.
In general, if the corpse is warm and there is no rigidity, death happened within the last 3 hours. The death happened 3-8 hours earlier if the corpse is warm and rigid.
If the body is discovered before the body temperature has reached equilibrium with the ambient temperature, forensic experts can determine the time of death by measuring the body's core temperature.
Therefore rigor mortis is the best effective method to determine the time of death, hence option a is correct.
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how many days does it take for the entire epithelial population of the small intestines to be replaced
The whole epithelial populace is replaced about every four to 7 days.
The small gut consists of 3 elements duodenum jejunum and ileum. It enables to similarly digest food popping out of the stomach. It absorbs nutrients and water from meals and makes them to be had to the frame. The small gut is a part of the digestive device. A healthful bowel movement usually consists of frivolously formed, brown stools that are not unfastened, difficult, or painful.
There's no ideal wide variety of epithelial population moves for all and sundry. The common healthy variety is 1-3 bowel movements consistent with day or simply 3 bowel moves per week. The liver is responsible for the manufacturing of most of these clotting factors. a number of those elements require nutrition k for synthesis, and the liver produces bile salts which might be essential for the intestine to soak up this fats-soluble diet.
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how does blocking retrograde axoplasmic transport in an axon affect the activity of a neuron?
The soma becomes unable to respond to changes in the distal end of the axon this way axon affects the activity of a neuron.
Retrograde trophic assistance for growing neurons can interfere with their growth and frequently results in their death. Here, we describe the results of removing retrograde support from the isthmo-optic projection in chick embryos by preventing axoplasmic transport at the terminal sections of the axons, an action that is known to kill the isthmo-optic neurons in the long run. Neuron survival in the isthmo-optic nucleus was reduced even more swiftly. This unique effect persisted at 6 and 9 h after injection, but at longer survival durations, as was expected, the number of dead neurons rose significantly above control levels. According to our understanding of the temporary decrease in neuronal death, retrograde trophic signals contain both life- and death-promoting elements, with the former acting more quickly in this system.
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in a dietary deficiency of folate, there are decreasing numbers of mature red blood cells to carry the oxygen from the lungs to the tissues. this condition is known as .
This condition is called as megaloblastic anemia.
Deficiency disorder is a ailment caused by a lack of critical dietary factors and specially a vitamin or mineral. A balanced food plan specializes in supplying the body with all the vitamins it requires. It accommodates macronutrients like protein, carbohydrates, and fats at the side of micronutrients like vitamins and minerals.
Diet deficiency anemia is a loss of healthful red blood cells due to decrease than typical quantities of nutrition B-12 and folate. this could appear in case you don't devour sufficient ingredients containing nutrition B-12 and folate, or in case your frame has hassle soaking up or processing these nutrients.
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All the nerve bundles of the body are routed through the:
A) Cranium
B) Stomach
C) Spinal Cord
All the nerve bundles of the mammalian body system are routed through the spinal cord.
The correct answer choice is option C.
The importance of the nerve bundles to the spinal cord.The nerve bundles are those structures within runs from the nervous system throughout all the body parts. They are electrical wires which helps to transmit signals or electrical impulses.
That being said, the spinal cord signals different electrical impulses from the brain to different parts of the body and also from different parts of the body back to the brain.
In conclusion, we now know from the simple explanation above that the nerve cells branches to different parts of the body through the spinal cord.
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which of the following genetics terms is correctly matched with its definition? group of answer choices alleles: gene variants that arise by mutation and exist on relatively the same parts of homologous chromosomes genotype: the observable traits expressed by an organism phenotype: useful for determining genetic probabilities of fertilization events heterozygous: when a diploid organism gets two identical alleles of a gene
Match the genetic word to the associated trait: Homozygous. A gene with two identical alleles.
What types of qualities are examples?Character traits includes things like sincerity, loyalty, charity, and restlessness. These are only a few of the numerous character traits that could aid in your understanding of yourself or those around you.
What character feature is common?All port, any of a variety of per-sistent traits that chara-cterize or dictate a person's conduct in a range of circumstances, are shared by many people, and are displayed in a comparable man-ner.
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an entity with two identical or similar alleles for a certain trait. Heterozygous. a living thing with two distinct alleles for the same characteristic. Phenotype.
What in biology is an organism?An organism refers to just a living object with a organized structure, could react to stimuli, procreate, develop, adapt, etc maintain homeostasis. Therefore, every mammal, plant, fungus, protist, bacterial, or archaeon found on Earth would be considered an organism.
what organism it unicellular ?Living things with only one cell, which performs all the functions, are referred to as unicellular organisms. Amoeba, Unicellular, bacteria, and Cyanobacteria are a few examples.
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how does iodine staining effect the life process of the cell
Answer:
As a biological stain, iodine is useful for studying plant cells because it stains starch blue-black and in animal tissue, it can help in the demonstration of nuclei and cell membranes
What are the benefits of algae? Select all that apply.
They are complex organisms.
They are the base of food webs.
They provide oxygen.
They live only in water.
Answer:
All the benefits of algae include all the answers given.
Explanation:
Orgasm occurs after stimulation of the genitals or erogenous zones.Phytoplankton and algae form the bases of aquatic food webs. Oxygen is produced by photosynthesizing organisms that live in the ocean, in freshwater, and on land. These organisms include bacteria, algae and plants. Photosynthesizing algae in the ocean produces around 70% of oxygen in the atmosphere.Algae are simple plants that live in oceans, lakes, rivers, ponds, and moist soil.On the ventral surface of the brain, you can observe the optic nerves and chiasma, the pituitary gland, and the mammillary bodies. These externally visible structures form the floor of the __________.
On the ventral surface of the brain, you can observe the optic nerves and chiasma, the pituitary gland, and the mammillary bodies. These externally visible structures form the floor of the diencephalon.
Where is the exact location of the diencephalon?Diencephalon is one part that is located behind the forebrain, which part includes the thalamus, hypothalamus, and also the epithalamus.The diencephalon itself is one of the main parts of our brain. Its location is quite hidden and its size is quite small, the exact location of this diencephalon is between the hemispheres of the brain and just above the brainstem.Despite its small size, the diencephalon plays an important role in brain health and body function because the diencephalon is the part of the brain that sends signals and cooperates with our bodies.Some of the things controlled by the diencephalon, they are senses (hearing, seeing, smelling, feeling), body movements, motor functions, homeostasis, touch perception and so on.Learn moreMaterial about part of the diencephalon here: brainly.com/question/25750081
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where are t and b lymphocytes located in lymph nodes, and how is their anatomic separation maintained?
Lymphocytes are divided into two main types, namely B lymphocytes and T lymphocytes. B lymphocytes make antibodies, and T lymphocytes help kill tumor cells and help control the immune response.
Both originate from stem cells in the bone marrow and initially have a similar appearance.
LymphocytesLymphocytes are a type of immune cell made in the bone marrow and found in blood and lymph tissue. B cells are so named because they develop in the Bursa of Fabricus (in birds) or in the bone marrow (in humans). While T cells are so named because they develop in the thymus.
Some lymphocytes migrate to the thymus, where they mature into T cells and others remain in the bone marrow, where they eventually develop into B cells.
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why do we amplify the control region, as opposed to a conserved region, while performing pcr on mitochondrial dna?
We amplify the control region because, Because the control region is non-coding, it can accumulate mutations without affecting protein structures, allowing us to compare individuals.
In vertebrates, the mitochondrial control region, also known as the displacement loop or D-loop, is positioned between the genes encoding proline and phenylalanine tRNAs. It is in charge of mitochondrial gene transcription and is the starting site for heavy strand replication.
The mtDNA regulatory region is a non-coding DNA section of the mitochondrial genome. This area is in charge of DNA synthesis. The human mtDNA genome's most polymorphic region, with variation concentrated in hypervariable areas. In these locations, the average genome diversity is 1.7%.
The mitochondrial controlling region (CR) is the mitochondrial genome's primary non-coding section, containing the mitochondrial origins of transcription and reproduction.
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dna and mrna synthesis proceed in a 5' to 3' direction. what do 5' and 3' refer to? group of answer choices the number of hydroxyl groups attached the position of the phosphate and nitrogen bases the position of a carbon atom in the sugar backbone the number of carbons in the nitrogen base
The 5' and 3' refer to c) the position of a carbon atom in the sugar backbone.
DNA and mRNA are made from nucleotide bases, a phosphate group, and a sugar backbone.
There are two strands of DNA, and one of them is in the 5' to 3' direction. The other is in the 3' to 5' direction. This means that the position of the carbon that is free in the sugar backbones is either 5' for one strand and 3' for the other strand.
However, replication occurs only in the 5' to 3' direction. This is because the DNA polymerase can work only in this direction. For the other strand, referred to as the lagging strand, Okazaki fragments are formed.
Your question will correctly be written as:
DNA and mRNA synthesis proceed in a 5' to 3' direction. what do 5' and 3' refer to? group of answer choices
a) the number of hydroxyl groups attached
b)the position of the phosphate and nitrogen bases
c) the position of a carbon atom in the sugar backbone
d) the number of carbons in the nitrogen base
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Claims. Evidence Reasoning How
is the structure of a unicellular organism
different than the structure of a
multicellular organism? How does this affect
function? Summarize evidence to support
your claim and explain your reasoning.
A multicellular organism is made up of numerous cells that cooperate, whereas a unicellular organism only contains one cell. Each function must be managed by a single cell, whereas in multicellular organisms.
What is in a unicellular organism?Any living creature only with one cell, which performs all crucial body functions like metabolism, waste, and fertilization, is referred to as a "unicellular organism." Unicellular organisms can either be prokaryotes or eukaryotes. Unicellular organisms include bacteria, archaea, unicellular fungi, and unicellular protists.
How is it important to unicellular organisms?Cell division in unicellular organisms is crucial only for reproduction. They divide their cells through a process called mitosis to create their daughter cells. Cell division is crucial for the development of new cells and reproduction in multicellular animals.
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Carbon is able to bond…
A. many elements.
B. only with non-metal elements.
C. only with CHONPS elements and no others.
Can somebody please help with this?
Wisconsin Fast Plants are a rapid-cycling form of the species Brassica rapa, a member of the mustard family Cruciferae. They were developed at the University of Wisconsin-Madison by Professor Paul H. Williams to be used by research scientist in the laboratory and now used for hands on investigations throughout the world. In this investigation, two Wisconsin Fast Plants are crossed with the height traits (tall – dominant or dwarf – recessive) and pigment trait (dominant – anthocynanin) and recessive – anthocyanin-less). The F1 generation consists of the results below.
(a) Predict the P generation genotypes and justify your prediction
(b) Perform a chi-square test on the data for the F1 generation. Identify the chi-square value and specify the null hypothesis you are testing.
(c) Explain whether your hypothesis is supported by the chi-square test and justify your explanations.
(d) Predict how a mutation to the traits would affect the F2 generation.
a) The Parent (P) Generation genotype is heterozygous dominant and homozygous recessive.
b) The Chi-Square value is 0.2888; while the null hypothesis is "there is no significant distinction between the observed value and desired value, that is the genes are unlinked."
c) As a result of the Chi-Square results there is no significant difference between our actual and anticipated values, and the genes are not connected. As a result, the chi-square test supports our hypothesis.
d) A mutation in "[tex]F[/tex]1" traits will sufficiently modify the heterozygous dominant genotype in the "[tex]F[/tex]2" generation.
How can you arrive at the above results?a) First, note that A chi-square test is a type of statistical test that is often used in hypothesis testing. This table is used in genetics to determine whether there is a statistical difference between the predicted and actual values. This is also known as the Goodness of Fit test.
Hence, to forecast the parental genotype or P offspring genotype, we must first know the cross-ratio.
The rations are given as follows:
96/372 : 94/372 : 93/372 : 89/372; this give us
⇒ (0.26):(0.25):(0.25):(0.24)
Looking at the above ratios, we can tell that they are approximate:
1:1:1:1
Whenever a heterozygous genotype is crossed with a homzygous recessive, the ratio is 1:1:1:1. As a result, TT stands for tall, TT stands for short, PP stands for pigment, and PP stands for anthocyanin-less.
The parent's genotype will then be TtPp (Tall, pigment) and ttpp (Tall, pigment) (short, anthocyanin-less). That is, the paternal genotype is heterozygous recessive and heterozygous dominant.
c) In order to explain whether or not the Hypothesis is supported by the chi-square test and justify your explanations, we must compare the degree of freedom with the Chi-Square value with the help of a Squared Distribution Table.
The degree of freedom is equal to n-1, where n is the number of classes. Because there are four classes in this case, the degree of freedom is three.
The probability 0.05 or 5% is considered as a crucial value in statistics. Examine the chi-square distribution table with p = 0.05 and degree of freedom = 3. The answer is 7.8.
If our estimated value is less than this number, our null hypothesis will be accepted; otherwise, we will reject the null hypothesis. Because our chi-square value is 0.288, which is less than 7.8 in the chi-square distribution table, the null hypothesis is accepted.
As a result, there is no significant difference between our actual and anticipated values, and the genes are not connected. As a result, the chi-square test supports our hypothesis.
d) The "[tex]F[/tex]1" generation is the first filial generation of Offspring from the parents, whereas the "[tex]F[/tex]2" generation is the second filial generation of offspring produced via the congenital of "[tex]F[/tex]1" individuals.
As a result, a mutation in "[tex]F[/tex]1" features modifies the heterozygous dominant genotype sufficiently in the "[tex]F[/tex]2" generation.
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a pure white chicken and a pure black chicken are crossed. the f1 progeny all are checkered. this is an example of:
The f1 progeny all are checkered It is an example of codominance.
In genetics, codominance refers to a kind of inheritance inside which two variants (alleles) with same gene are activated separately to produce distinct features in a person. Codominance may be seen in spotted cows and plants with petals of two distinct hues.
Codominance can also be seen in less obvious features such as type of blood. Both the A and B blood type alleles can be produced simultaneously at the same time, producing in type AB blood. Codominance, as distinguished to partial domination, occurs when both parents' traits are manifested in the same child organism.
Codominance is a widespread phenomena that is likely to be a major driver of community composition, ecosystem function, and both community and ecosystem stability. While researching polygenetic features and their inheritance, Gregor Mendel identified the phenomena of codominance.
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Besides the supinator, which other muscle is a powerful supinator of the forearm?.
Besides the supinator, the other muscle that is a powerful supinator of the forearm is: the biceps brachii. The biceps brachii is responsible for elbow flexion and forearm supination.
What is the biceps brachii?The biceps brachii is a large, thick muscle on the front of our upper arm that is located between the shoulder and the elbow. This muscle often looks like a horseshoe shape. The biceps brachii’s primary function is as an extension of the elbow joint.
While the biceps are located on the front upper arm, there are other muscles known as the triceps on the back of the upper arm, which are responsible for arm extension.
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Where in the cell cycle do you think the mutation occurred? Please explain your
reasoning.
Answer:
Metaphase.
Explanation:
Chromosomal mutation are either having an extra or missing piece, or having an extra or missing chromosome. An extra or missing piece happens during crossing over where the exchanged parts both go to one side, so one side has an extra chromosome piece and the other has a missing one. This happens in metaphase.
ellie may, a mother with type b blood, has a child with type o blood. she claims that jethro, who has type a blood, is the father. he claims that he cannot possibly be the father. further, blood tests ordered by maury povich reveal that the father is homozygous. judge joe brown rules that:
In addition, Maury povich's blood tests show that the father is homozygous. The Jerry Springer show should be called, according to judge Joe Brown, who agrees with Jethro.
What is often examined during a blood test?Blood tests are frequently performed. Find out how well-functioning organs like your kidneys, liver, heart, or thyroid are, as directed by healthcare professionals. aid in the diagnosis of illnesses like HIV/AIDS, diabetes, coronary heart disease, and cancer.
What activities are prohibited prior to a blood test?Avoiding certain meals and beverages, such as alcohol, grilled meats, and herbal tea. avoiding overindulging the day before a test. not a smoker. avoiding certain actions, such as engaging in sexual activity or hard exercise.
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Why does the process shown in the diagram only occur in plants and certain bacteria and protists?
This process only occur in plants and certain bacteria and protists because plants have chloroplasts with pigment that absorbs sunlight, while humans do not. So the correct option is C. plants have chloroplasts with pigment that absorbs sunlight, while humans do not.
What are chloroplasts?Chloroplasts are organelles found in plants, bacteria and protists which are responsible for photosynthesis. This process will convert light energy into chemical energy such as chlorophyll.
After forming chlorophyll, it absorbs light to be able to carry out photosynthesis and to be able to form ATP and reducing molecules such as NADPH to be able to give energy to the cell to form organic molecules to be able to feed.
Therefore, we can confirm that the correct option is C. plants have chloroplasts with pigment that absorbs sunlight, while humans do not.
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After ingestion, the first type of macromolecule to be worked on by enzymes in the human digestive system is.
Enzymes with in human digestive system begin working with carbohydrates as soon as they are ingested as the first form of macromolecule.
What happens after digestion?Chewing triggers the start of digestion, which is completed there in small intestine. Large food molecules split into smaller ones as they move through the GI tract and combine with digestive fluids.
Why is proper digestion important?To be converted into nutrients that body can use for energy, development, and cell repair, food must first be digested. Nutrients from food and drink need to be broken up into smaller molecules before being absorbed by the circulation and sent to the cells around the body.
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Describe the characteristics and significance of the carbon atom ( organic chemistry )
Answer:
Carbon has an exceptional ability to bind with a wide variety of other elements. Carbon makes four electrons available to form covalent chemical bonds, allowing carbon atoms to form multiple stable bonds with other small atoms, including hydrogen, oxygen, and nitrogen.
Explanation:
Carbon has an exceptional ability to bind with a wide variety of other elements. Carbon makes four electrons available to form covalent chemical bonds, allowing carbon atoms to form multiple stable bonds with other small atoms, including hydrogen, oxygen, and nitrogen.
PLS HELP FOR MY EARTH SCIENCE CLASS?!?
The right atmospheric composition is another key component for a
planet to sustain life.
Which telescope holds a promising future in our quest for Earth 2.0?
A Hubble Space Telescope
B Spitzer Space Telescope
C Fermi Gamma-Ray Space Telescope
D James Webb Space Telescope
James Webb Space Telescope holds a promising future in our quest for Earth 2.0
The correct answer is D
How are telescopes utilized?A telescope is indeed a device used to observe distant objects. The planets & stars can be seen through telescopes. Binoculars and cameras both utilize some of the same optical engineering as telescopes.
How does a telescope operate simply?Lenses, which are pieces of curved, glass, were employed in early telescopes to focus light. Curved mirrors are used by the majority of telescopes nowadays to collect light from the night sky. Light is focused by a telescope's mirror or lens' shape. When we gaze through a telescope, that light is what we're seeing.
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which human activity is responsible for overloading the nitrogen and phosphorus cycles? overhunting of wild game species clearcutting of forests for lumber runoff of fertilizer from agricultural areas increased uptake of water in urban areas
The human activity which is responsible for overloading the nitrogen and phosphorus cycles is runoff of fertilizer from agricultural areas.
What is fertilizer?In general, fertilizers are described as "any item, organic or inorganic, natural or manufactured, which supplies one or more of the chemical elements essential for the growth of the plant." The three fundamental plant nutrients—nitrogen, phosphorus, and potassium—are included in the majority of fertilizers used in agriculture.
What is the use of fertilizer in agriculture?Fertilizers are supplementary materials that are given to the crops to boost productivity. Farmers utilize these on a regular basis to boost crop productivity. Fertilizers give plants the nutrients potassium, phosphorus, and nitrogen so they can grow larger, more quickly, and generate more food. Every living thing on Earth needs nutrients to develop, but nitrogen in particular is crucial.
Thus from the above conclusion we can say that the human activity which is responsible for overloading the nitrogen and phosphorus cycles is runoff of fertilizer from agricultural areas.
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What is another name for the “sentences” that DNA encodes?
a piece of a polypeptide is folded so that a serine side chain is located on the surface of the polypeptide. describe the effect on the protein of changing that amino acid to isoleucine.
The side chain of a serine molecule has an aliphatic -OH, a polar bond that may create an H-bond with a water molecule. A partial charge intermolecular contact is called an H-bond.
Only once -OH is deprotonated may serine form a covalent connection with another substrate in the enzyme pocket.
The side chain of isoleucine is aliphatic, nonpolar, and hydrophobic. It can only engage in Van der Waals interaction with proteins. Proteins must contain polar aminoacids on their surface that may interact with water in order to be soluble in an aqueous environment.
Serine's side chain is hence polar and hydrophilic. With the watery environment, intermolecular attraction would develop in molecule. The hydrophobic, nonpolar side chain of isoleucine. The watery environment would resist it. Since the isoleucine side chain prefers to remain on the inner of the protein, this modification may modify the protein's overall structure.
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A sequence of biotic changes that regenerate or create an ecological community is known as?.
A sequence of biotic changes that regenerate or create an ecological community is known as Succession.
Ecological succession is the gradual evolution of a community's constituent species over time. The process by which a region's species and habitat mix evolves over time is called ecological succession. These communities gradually replace one another until a "climax community" is attained, such as a mature forest, or until a disruption, such as a fire, happens. A key idea in ecology is ecological succession.
Nudation, Invasion, Competition and Co-action, Reaction, and Climax or Stabilization are the five stages of succession. At the same location, a succession of biotic communities organically emerge one after another until the Climax stage is reached. In their early stages, biotic communities evolve slowly.
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