Darwin and Alfred Russel Wallace were the scientist and naturalist who proposed and developed the theory of evolution by natural selection.
What is theory of evolution?According to theory of evolution "the process in which all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.
The main features of theory of evolution are:
individuals of a species are not identical characters are trasfered from one generation to next generationthe number of survival species are less than the born speciesthe survivors are able to reproduceTherefore, Darwin and Alfred Russel Wallace both developed and proposed the theory of evolution by natural selection.
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In an isolated population of 1000 individuals, 444 are genotype mn, 478 are mm, and 78 are nn. What are the frequencies of the m and n alleles in this population?.
f(M) = 0.7, f(N) = 0.3 are the frequencies of the m and n alleles in this population.
What is the relative fitness of genotype BB What is the relative fitness of genotype BB?
A relative fitness of 1.0 can occur for more than one genotype. B.The relative fitness of genotype BB in a population of chickens used as a sample is 1.0.The selection coefficients for genotype Bb and genotype Bb are respectively 0.3 and 0.4.Which of the following processes tends to increase genetic variation in a population?
Genetic diversity is typically increased by mutations while being decreased by the other three mechanisms.Migration tends to homogenize genetic variation, reducing the genetic diversity between populations, whereas natural selection and genetic drift tend to increase it.Where are alleles?
Alleles are matching genes; one from our biological mother, one from our biological father.We have two copies of every gene (strings of code that drive some biological function on our chromosomes).They can be identical, but they can often have slight differences.Learn more about alleles
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What enzymes are used to cleave glycerophospholipids? what bond will this enzyme cleave?
What enzymes are used to cleave glycerophospholipids? what bond will this enzyme cleave?
The broad family of enzymes known as mammalian PLA2 isozymes cleaves phospholipids at the second position of the glycerol backbone, releasing a free fatty acid and a lysolipid moiety.
what is glycerophospholipids?Any derivative of glycerophosphoric acid with at least one O-acyl, O-alkyl, or O-alk-1'-enyl residue linked to the glycerol moiety is referred to as a glycerophospholipid.
Here, two fatty acids and phosphoric acid are estered to glycerol, the alcohol. While the polar heads, which are primarily made up of the phosphate group connected to the third carbon of the glycerol molecule, are hydrophilic, the two fatty acid chains that are coupled to the glycerol molecule are nonpolar and therefore hydrophobic. Glycerophospholipids are amphipathic as a result of these two characteristics. They are often arranged in membranes as a bilayer, with the non-polar hydrophobic tails pointing inside and the polar hydrophilic heads extending out toward the aqueous environment. Glycerophospholipids are made up of a variety of species, most of which are different.
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The best term to describe the species-species interaction between pseudomyrmex ants and the bullhorn acacia plant would be?
Pseudomyrmex ants and bullhorn acacia plant work together and do not harm each other, this type of relationship is known as a mutualistic relationship.
What is a Mutualistic Relationship?Interaction of species results in some results like damage of one species, benefit for one species and harm for another or benefit for both the species. When the interaction of both species is beneficial for both, then this type of species interaction is known as a mutualistic relationship.In United State, Pseudomyrmex ants and the bullhorn acacia plants are examples of mutualistic relationships, both species' presence for each other is beneficial for both.To know more about mutualistic relationship visit:
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You arrive at the scene of an accident and observe the patient lying face-up on the ground. as you look at the front side of his body, which plane of the body are you observing?
You are observing coronal plane of the body.
What is coronal plane?Any vertical plane that separates the body into ventral and dorsal (belly and back) halves is known as a coronal plane (also known as the frontal plane). It is one of the three major planes of the body that are used to explain how bodily parts are situated in relation to one another.
The coronal plane extends from the mouth to the anus along the longitudinal axis.
The coronal plane is parallel to the transverse plane.
When assessing bony abnormalities, spondylolysis, or degeneration of the discs and facet joints, the coronal plane is frequently the most helpful.
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If it were possible to have antagonistic muscle pairs in an arm contract simultaneously, what movement would the arm make?
If it were possible to have antagonistic muscle pairs in an arms contract simultaneously, the arm would be locked in position.
How do antagonistic muscle pairs work?
Tendons allow muscles to exert force on bones. They pull on our bones and related body parts to move them; this activity is referred to as muscle contraction. In "antagonistic muscle pairs," muscles function. A pair of muscles work together to move a body part, and then the other muscle in the pair works together to bring the body part back to its starting position.
Antagonizing pairs of muscles are those that function in this way. When two muscles are antagonistic, one contracts while the other relaxes or lengthens. The muscle that is lengthening or relaxing is referred to as the antagonist, while the muscle that is contracting is referred to as the agonist.
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Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous?
The correct option is Light reflects off the object and reaches our eyes.
What is Luminous?The definition of luminous is giving off a very bright light or an individual or trait considered brilliant. An example of luminous is the sun. An illustration of luminous is the smile of a beautiful girl. adjective.Some common synonyms of luminous are bright, brilliant, lustrous, and radiant. While all these phrases mean "shining or glowing with light," shining indicates the emission of steady, suffused, glowing light by consideration or in the surrounding evening.Objects like the sun that give out or emit light of their own are named luminous entities.Other examples: Electric bulbs, torches, etc. Non-luminous entities are entities that don't have their own light but are perceptible only when light from a luminous source remembers from them. For illustration: Moon, chair, a painting, etc.To learn more about Luminous, refer to:
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When a person has down syndrome, he or she has an extra chromosome 21. therefore, down syndrome is a kind of __________ and results from __________.
When a person has down syndrome, he or she has an extra chromosome 21. therefore, down syndrome is a kind of "aneuploidy" and results from "non-dis-junction of chromosome 21 during meiosis I".
What is down syndrome?When chromosome 21 is fully or partially duplicated, Down syndrome is present.
The cause of down syndrome is-
Every cell within the human body has a nucleus, which houses the genes that store genetic material. All of our inherited qualities are encoded by genes, which are arranged along rod-like structures known as chromosomes. Each cell typically has 23 chromosome pairs in its nucleus, half of which inherited out of each parent.Some characteristics of down syndrome are-
This extra genetic material changes the development course and results in the Down syndrome-related traits. Low muscle tone, short stature, upward-slanted eyes, as well as a single deep crease in the middle of the palm are a few of the physical characteristics associated with Down syndrome, while each person with the condition is unique and may not have any of these characteristics at all.To know more about down syndrome, here
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The ______ is a sequence of dna that signals the start of a gene and also which of the two strands of dna is the template for transcription.
When dealing with ____________ it is important to educate consumers so that they do not fall victim to greenwashing/marketing schemes.
When dealing with Ecolabelling , it is important to educate consumers so that they do not fall victim to green washing/marketing schemes.
Ecolabelling (also "Eco-Labels") and Green Stickers are labelling systems for food and consumer products. The use of Eco labels is voluntary, whereas green stickers are mandated by law.
Some labels quantify pollution or energy consumption by way of index scores or units of measurement, while others assert compliance with a set of practices or minimum requirements for sustainability or reduction of harm to the environment. Many ecolabels are focused on minimising the negative ecological impacts of primary production or resource extraction in a given sector or commodity through a set of good practices that are captured in a sustainability standard. Through a verification process, usually referred to as "certification", a farm, forest, fishery, or mine can show that it complies with a standard and earn the right to sell its products as certified through the supply chain, often resulting in a consumer-facing ecolabel.
Ecolabelling systems exist for both food and consumer products. Both systems were started by non-governmental organizations (NGOs).
At least for food, the ecolabel is nearly identical with the common NGO definition of the rules for ecolabelling. Label trust is an issue for consumers because some manufacturers and manufacturing associations have set up "rubber stamp" labels to greenwash their products with fake ecolabels. High trust levels can be created when ecolabels apply for governmental recognition as formal Certification Marks (recognized by logos or names with 'CTM', CM or 'CertTM'). Typically this means schemes approved as a Certification Mark have had the government department responsible declare that the scheme has a standard and certifies that they are 'Competent to Certify'.
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The _________ is a temporary organ that is the site of exchange of oxygen, nutrients, and wastes between the mother and fetus, and the ________ connects the placenta to the embryo
"The placenta is a temporary organ that is the site of exchange of oxygen, nutrients, and wastes between the mother and fetus, and the umbilical cord connects the placenta to the embryo."
The term "placenta" refers to the transient vascular organ that is present in mammals and holds the baby to the mother's uterus during pregnancy. A developing newborn receives oxygen and nutrients from this structure. It also cleans the baby's blood of waste materials. Only mammals have a placenta.
The transmission of materials is facilitated by the umbilical cord, which joins the fetus and placenta. The network of blood veins in the uterine wall connects the mother to the placenta. The umbilical cord has a vein and two arteries. It transports waste materials away from the fetus and supplies it with oxygen and nutrition.
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Ice picks, leather punches, and screwdrivers are capable of producing ________ that are normally small, have little or no bleeding, and can be easily overlooked.
Ice picks, leather punches, and screwdrivers are capable of producing Puncture wounds that is wounds made by pointed objects and often appear to be on the surface.
This type of wounds normally small, does not bleed excessively and can appear to close up. But these wounds are prone to be infection and must be treated appropriately as soon as possible.
It can be deep wound that occurs due to some Sharpe and pointed such as safety pins , in that situation wound will be deep but no bleeding and if possible wounds can easily become infected.Leaving a wound uncover may dry and out new surface cell then healing process is started.
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If 10 W/m2 impacts a surface and only 3 W/m2 is reemitted back, what is the surface's albedo as a percent?
Numerical Answers Expected!
The surface's albedo of the incident light as a percent is determined as 30%.
What is surface's albedo?
The surface albedo quantifies the fraction of the sunlight reflected by the surface of the Earth.
The surface's albedo of the body is calculated as follows;
surface albedo = intensity of light reemitted / total intensity of light on the surface
As fractionsurface albedo = 3/10 = 0.3
As percentagesurface albedo = 0.3 x 100% = 30%
Thus, the surface's albedo of the incident light as a percent is determined as 30%.
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Which type of central nervous system tissue contains neuronal cell bodies dendrites?
Gray matter contains neuronal cell bodies dendrites.
The topmost layer of the brain is made up of grey matter. White matter and grey matter are similar in that they are both crucial components of the spinal cord and the brain. A significant number of neuronal cell bodies give the grey matter its gray hue.All neuronal synapses, as well as the neural cell bodies, axon terminals, and dendrites, are found in the gray matter, which gets its name from its pinkish-gray hue. The cerebellum, brain stem, and cerebrum all contain a lot of this type of brain tissue. It also contributes to the central spinal cord's butterfly-shaped part.learn more about Gray matter here:
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In the rostral medulla, if the lesion designated by the hash marks affected the anterolateral and dcml pathways, which side of the body would have impairments associated with these sensory modalities?
In the rostral medulla, if the lesion designated by the hash marks affected the anterolateral and dcml pathways, the side of the body that would have impairments associated with these sensory modalities is left.
What is rostral medulla?
The rostral medulla (RM), or ventromedial nucleus of the spinal cord, is a group of neurons located close to the midline on the floor of the medulla oblongata.
The rostral medulla sends descending inhibitory and excitatory fibers to the dorsal horn spinal cord neurons.
Thus, in the rostral medulla, if the lesion designated by the hash marks affected the anterolateral and dcml pathways, the side of the body that would have impairments associated with these sensory modalities is left.
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Earth is a closed system for matter. This
means that the amount of matter on Earth is
A. constant.
C. depleting at a rapid rate.
B. constantly changing.
D. dynamic.
Answer:
A
Explanation:
The correct answer is A. constant since it's not gaining or losing matter.
What sort of instructional outcome is mr. bevins seeking to accomplish when he wants his biology students to ""develop a sincere respect for the scientific process""?
The instructional outcomes are lacking but they may be associated with affective outcomes that allow them to develop a respect for the scientific process.
What is the scientific process?The scientific process is a series of steps by which it is possible to collect empirical evidence by testing hypotheses.
The affective outcomes associated with respect to the scientific process involve a real understanding of the importance of this process in our daily lives.
In conclusion, the instructional outcomes that Mr. Bevins seeks for his students are lacking but they may be associated with affective outcomes that allow them to develop a respect for the scientific process.
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Cognitively, people with borderline personality disorder are ________ negative emotional stimuli in the environment. less aware of hyperattentive to avoidant of resistant to
Cognitively, people with borderline personality disorder are hyperattentive to negative emotional stimuli in the environment.
Does the environment affect borderline personality disorder?The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR)1 classifies borderline personality disorder (BPD) as belonging to the Cluster B personality grouping and is associated with the cluster traits of dramatic, emotional, and erratic personality features. Patients with BPD are described as being emotionally brittle and hyper-reactive, which fits with this description. The trait of emotional hyper-reactivity in BPD patients will be examined in this issue of The Interface from the standpoint of clinical experience as well as through data from empirical investigations.
Additionally, it has been demonstrated that the environment plays a significant part in how impulsivity manifests itself since BPD patients who experienced several childhood hardships are more likely to have made multiple impulsive harming attempts. With indicators like emotional dysregulation and impulsivity considered temperamental variants that have negative impacts in an unfavorable context but positive ones in a favorable setting, this model can be used to understand borderline personality disorder.
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____ is a genetic abnormality in which delayed blood clotting causes internal and external bleeding
Answer:
hemophilia is the genetic abnormality.
A.A saturated fat becoming unsaturated
B. A fat molecule forming through dehydration synthesis
C. The saturation of a triglyceride molecule
D. Dehydration synthesis breaking down a fat molecule
This diagram represents the saturation of a triglyceride molecule. Therefore, the correct option is C.
The triglyceride molecule shown in the figure is what is meant when the term "saturation" is used to describe the existence of double bonds in fatty acid chains. Unsaturated triglycerides will have one or more double bonds, while saturated triglycerides will have none.
The structure of the triglyceride molecule is shown in the figure; It consists of three fatty acids (H-C-OH) attached to a backbone of glycerol (C-C-C). Triglycerides are a type of lipid (fat) present in the body and act as energy storage.
Therefore, the correct option is C.
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Which observations led wallace to understand how species change over time? choose all the statements that apply
The observations which led Wallace to understand how species change over time are as follows:-
The traits in a population vary from one individual to another.Populations exhibit a tendency to produce more offspring in each generation than will survive.Individuals possessing traits which give them a slight advantage over other individuals in a population will survive, and over the period of time the former will surpass other individuals.Wallace did extensive fieldwork, firstly in the Amazon river basin and later in the Malay Archipelago, where he identified the faunal divide now know as the Wallace Line. The line divides the Indonesian archipelago into two distinct parts; a western portion in which the animals are largely of Asian origin, and an eastern portion where the fauna reflect Australasia.
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What is the heating value of a number 2 heating oil?
a) 80,000 btu/gallon
b) 100,000 btu/gallon
c) 140,000 btu/gallon
d) 180,000 btu/gallon
Correct option is C. The heating value of a number 2 heating oil is 140,000 btu/gallon.
The amount of heat released by combusting a specific quantity of fuel (at first at 25°C) and raising the temperature of the combustion products to 150°C is known as the lower heating value (also known as net calorific value) of a fuel. This definition assumes that the latent heat of vaporization of water in the reaction products is not recovered.When a fuel is burned and the combustion products have returned to a temperature of 25°C, the higher heating value of the fuel—also known as the gross calorific value or gross energy—is calculated, taking into account the latent heat of vaporization of water in the fuel and the amount of heat released by a specified quantity (which was initially at 25°C).British thermal units are BTUs, while standard cubic feet are SCFs.To learn more about heating value from the given link
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To identify people by dna, is it better to make copies of genes or non-coding segments? Explain.
To identify people by DNA it is better to make copies of non-coding segments because they exhibit more variation than genes.
The polymorphic sequences of non-coding DNA vary between individuals in humans. Variable number tandem repeats, or VNTRs, are created when DNA sequences are repeatedly replicated in the genome's non-coding regions. It is possible to create a person's genetic fingerprint by counting the amount of repeats, which varies between individuals. However, this non-coding DNA is used in criminal investigations by forensic experts. There are distinctive repeating patterns found inside this area of DNA that can be utilized to distinguish one person from another. Short tandem repeats (STRs) are a type of pattern that can be measured to determine a person's DNA profile.learn more about DNA here: https://brainly.com/question/21265857
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Understand the meaning of critical thinking.
Practice thinking skills at the "evaluate" level of Bloom's Taxonomy.
500 words
Answer:
BALLI BALLI VİSKİ YENGRNİZ HEYCANLI
Explanation:
İSA MUSA SEN BİZİ KUTSA
What mechanisms contribute to the diversity of tcr molecules? which of these mechanisms contributes the most to the diversity?
Junctional diversity (random addition and removal of nucleotide between join ends). TCR diversity is generated by the random and rearrangement of V & J segment of TCR alpha and V ,D,& J segment of TCR beta jeans in the thymus.
Junctional diversity which is the DNA sequence variation introduce by inappropriate joining of jeans segments during the process of recombination. This mechanism of generating junctional diversity which discussed the context of B cells & T cells
In which different variable jeans segment of TCRs and immunoglobulins and rearranged the segments. this diversity form the imprecise joining of segment and form the nucleotide to the DNA sequence on specific site.
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A template strand of DNA is 3' AACCGAGTGGA 5'.
What is the complementary DNA strand that is created from this template during replication?
Choose 1 answer:
A
B
5' AACCGAGTGGA 3'
5' TTGGCTCACCT 3'
5' UUGGCUCACCU 3'
5' GGTTAGACAAG 3'
Answer: 5' TTGGCTCACCT 3'
Explanation:
The two DNA strands are antiparallel, meaning that if the template strand goes from the 3' end to the 5' end, then the complementary strand will be from the 5' end to the 3'end.
During DNA replication, DNA polymerase adds nucleotides according to the base pairing rules:
A ----- TG ----- CTherefore, according to this understanding, the given strand:
3' AACCGAGTGGA 5'
Matches with the following
[tex]\Large\boxed{5' ~TTGGCTCACCT ~3'}[/tex]
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The most common bacterial sexually transmitted disease in North American, which often occurs with no symptoms, is:
Chlamydia trachomatis (CT) is reported as the most common bacterial sexually transmitted asymptomatic disease (STD) in North America.
About 66% of the STDs are asymptomatic, from which Chlamydia is the most prevalence and accounted for 50.6% with the elevation in infection of about 142% as per the report in 2021.C. trachomatis is an obligate intracellular gram negative bacteria which affects the genital tissues by disturbing the immunopathology of human with its unique molecular mechanisms.The diagnosis at cellular and molecular level is required since it is often asymptomatic. Patients urine or vaginal swabs are subjected under nucleic acid amplification tests (NAATs) and cell culture test.Antibiotic treatments, primarily azithromycin and doxycycline are suggested for the chlamydia infections.Learn more about the Chlamydia trachomatis (CT) on https://brainly.com/question/4415288
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The appearance of colonies of streptococcus pneumoniae is related to the presence or absence of:_________
The appearance of colonies of streptococcus pneumoniae is related to the presence or absence of a polysaccharide coat.
Streptococcus pneumonia's extracellular polysaccharide capsule, the most important virulence factor , helps to initiate infection by allowing the bacterium to adhere to host cells and cause inflammation, while also providing protection from the host's immune system. Griffith conducted his experiments with Streptococcus pneumoniae, a bacterium that causes pneumonia. Griffith worked with two strains of this bacterium called rough (R) and smooth (S).Pneumococci produce pneumolysin, which breaks down hemoglobin into a green pigment that can be observed as a large green zone surrounding S. pneumoniae colonies growing on blood-agar plates.
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Which diagnostic test is used for the direct visualization of ligaments, menisci, and articular surfaces of joints?
Arthroscopy is done for direct visualization of the ligaments, menisci, and articular surfaces of the joints. Thus, option A is correct.
What is the role of ligament?Ligaments are type of connective tissue which help to connect bones, joints and organs. It provide support internal parts of the body.
It is made of a band of connective tissue, collagenous fibre and spindle-shaped fibrocytes which is an elastic fibers.
Ligaments holds bones together, stabilize it, provide strength to joints etc.
By the use of Arthroscopy doctors can diagnose and treat the joint’s structural problems like any dysfunction. Hence, Option A is correct.
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Your question was incomplete. So the probable question was
Which diagnostic test is used for the direct visualization of ligaments, menisci, and articular surfaces of joints?
A. Arthroscopy
B. Muscle biopsy
C. Ultrasonography
D. Electromyography
Following meiosis I, the daughter cells are ________; following meiosis II, the daughter cells are ________; and following fertilization and mitosis, the daughter cells are ________.
Following Meiosis I, the daughter cells are Haploid. Following Meiosis II, the daughter cells are Haploid and following Fertilization and Mitosis, the daughter cells are Diploid.
In a diploid cell containing a complete set of chromosomes and DNA content, After Meiosis I, the number of chromosome reduces by half thereby producing two daughter cells that are haploid which is termed as the Reductional Division due to the reduction in the number of chromosome and reduction of DNA content by half. Hence, the cell becomes Haploid after Meiosis I.
After Meiosis II, the number of chromosomes remains half as compared to the Diploid cell and only the DNA content reduces to one fourth as compared to the diploid cell. It is similar to Mitosis or Equational Division since no change occurs in the chromosome number as compared to the daughter cell obtained after Meiosis I. Hence, the cell remains Haploid after Meiosis II
After Fertilisation of two haploid cells formed after completion of Meiosis, the cell become Diploid (due to the fusion) containing complete set of chromosome and DNA content. After Mitosis of the newly formed Diploid cell, the number of Diploid cells increases due to the formation of two daughter cells produced continuously. No change in the chromosome number or DNA content occurs.
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The body receptors that have restricted locations and constantly advise the brain of our body movements are called _______________.
A Final statement or concluding statement
The body receptors that have restricted locations and constantly advise the brain of our body movements are called proprioceptors.
What Is Proprioception?It is the ability of your body to detect movement, action, and position.
It can be found in every muscle action you make. You couldn't move without thinking about your next step if you didn't have proprioception.
Proprioception permits you to walk without having to think about where you're going to put your foot next.
It allows you to close your eyes and touch your elbow.
Proprioception can be hampered by certain circumstances.
If you have a proprioception issue, you may have the following symptoms:
Falling when walking over uneven terrain.You are unaware of your own power.To learn more about Proprioception from the given link
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