Musculoskeletal body system should the nurse perform a focused assessment to identify life-threatening complications as the child ages.
Adolescents who have advanced muscular degeneration experience problems with their diaphragm, heart, and supporting muscles for breathing, which can lead to fatal respiratory infections and heart failure.
Duchenne muscular dystrophy has little impact on the central nervous system. Cardiopulmonary issues take precedence over nutritional issues. Although there will be a noticeable degradation of the musculoskeletal system, cardiac changes take precedence.
Your bones, ligaments, tendons, and connective tissues are all part of your musculoskeletal system. Your muscle as well as other soft tissues are supported by your bones. They assist you in moving, support the weight of your body, and keep your posture.
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Diagram 3
6. Since 1972, Dr. Jim Estes had been studying a food chain of kelp → urchins → sea otters. He tracked sea otter populations off the coasts of four different Alaskan Islands. In the early 1990s orcas began eating the sea otters.
a. Who is the keystone species in this ecosystem? Explain.
b. Use the data provided, food web, and your own inferences to
describe the trophic cascade taking place in this ecosystem (give at least 3 specific impacts).
Otter No. (% max. count).
c. What resource will kelp crab and sea urchins compete over? Is this
an example of interspecific competition or intraspecific competition?
d. By which method, quadrant or mark recapture, do you believe
researchers would have used to estimate the sea otter abundance?
Explain.
A keystone species is an organism that helps define an entire ecosystem.
What do you mean by ecosystem?An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
Ecosystems are organized to better understand the frame of reference in which they are being studied. They are organized from smallest to largest; organism, population, community, ecosystem.
There are four basic components of an ecosystem: abiotic substances, producers, consumers, and reducers, which are also known as decomposers.
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distinguish between the following processes in the kidney: filtration, reabsorption, secretion, excretion
Filtration, reabsorption, and secretion are three mechanisms involved in the formation of urine which occur in the nephrons of kidneys.
The urinary bladder stores urine, a yellowish liquid waste, which is then expelled to the outside through the urethra. The production and elimination of urine contribute to the control of blood pressure, blood volume, blood osmolarity, blood pH, and body fluid balance.
Filtration occurs in the renal corpuscle where blood plasma components are forced through the glomerular filtration membrane which results in the formation of filtrate in the Bowman's space. As the filtrate flows through the renal tubule, water, and essential solutes are returned into the blood through the process of reabsorption while excess ions and metabolic wastes are excreted into the urine through the process of secretion.
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The chief advantage of learning over natural selection as a means of adapting to change is that learning
Learning has a major advantage over natural selection for adjusting to change because that learning is faster.
When certain genotypes respond to environmental stimuli by producing more offspring than others, this process is known as natural selection. From generation to generation, there is a non-random shift in allele frequencies. In On the Origin of Species by Natural Selection (1859), Charles Darwin outlined four prerequisites for evolution through natural selection:
1. The trait being selected for in the population must have more than one variant, or allele, in the gene that codes for it.
2. The trait under evaluation must be inherited and be encoded by a gene or genes.
3. the fight for survival, in which many more springs are formed than can endure in the environment.
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What are the two main types of interactions that are studied in order to understand and solve environmental problems?
The two primary interactions that environmental scientists investigate are how we use natural resources and how human activities impact the environment.
An ecological community is a collection of populations of at least two distinct species that interact both directly and indirectly in a given geographic area, and within which organisms exist. Many characteristics and functions of ecosystems, like nutrient cycling and food webs, are based on interactions between species. Depending on the evolutionary setting and surrounding circumstances, these interactions can have a variety of different types. Because of this, the scale and context of ecological interactions between particular creatures and entire species can make them difficult to define and quantify. However, there are various classes of interactions between species that are present in a wide range of habitats and ecosystems.
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Bonjour comment naissent les iguanes?
Answer: les femelles pondent environ 20 à 70 œufs par an une fois qu'elles atteignent la maturité sexuelle. Lorsque 65 jours se sont écoulés après l'accouplement, l'iguane femelle déposera des œufs pâles et de couleur crème dans des terriers qu'elle construit. Dans les 90 à 120 jours, les œufs éclosent et de jeunes iguanes émergent.
Explanation: j'espérais pouvoir aider
Creating a Presentation
In this task, you’ll use presentation software to create a presentation of 15 to 20 slides that critique the proposed reforestation plan.
One slide should present the deforestation grids you created in Task 1
One slide should show the grids of the proposed restoration plan
One or two slides should include credible references
The remaining slides should answer the following questions:
Why is the protection of this particular forest important?
What are the strengths and weaknesses of the reforestation plan?
Do new trees provide the same resources for animals in the forest as adult trees do?
What are two or three alternate solutions to the problem? (Note: Your solutions can be modifications of the current reforestation plan, but consider the pros and consequences of changing the current plan.)
What tools, equipment, and engineering resources will be needed for these solutions?
What are the pros and cons of these solutions?
Time to complete: 2.5 to 3 hours
Part A: Organize Your Information
After you’ve gathered your research and answered all your questions, create an outline in the answer space. Use the outline to organize your presentation in whatever way you think is best. Following these guidelines for writing a five-paragraph essay may help you structure your outline. Make sure your outline includes a works cited screen at the end to document the authors and websites you consulted.
Part B: Select Audio and Video
An audio-visual presentation uses both pictures and words to present information. Follow these tips as you build your presentation:
Limit text: Insert key words or phrases highlighting your points instead of typing your entire speech on the slide.
When possible, use pictures instead of words: Use representative figures such as pictures, graphs, and charts to convey information or evidence rather than huge blocks of text.
Fill in the speaker’s notes: Presentation software includes a notes section where you can add speaker’s notes for your own reference. In this section, you can cover all the details you want to talk without showing them on your slides. Your speaker’s notes should be clear and coherent enough so that someone else could deliver the presentation to an audience. You must complete your speaker’s notes to get full credit for the assignment.
Identify two to three audio, video, or photo resources that you wish to use in your presentation. Use the Insert Image button to add any images you selected.
Part C: Create and Deliver Your Presentation
Use your outline and the materials you’ve collected to create your presentation. It should contain 15 to 20 slides. Be sure to proofread and revise to catch any errors in grammar, spelling, logic, or cohesion. Remember that you must add speaker’s notes as well as a works cited page at the end to credit your sources.
Follow your teacher’s instructions for delivering your presentation. Your teacher may ask you to record the presentation in the presentation software or present it to a live audience. Be sure to rehearse your presentation before you present or record it.
Make sure you complete the presentation within the time allotted. Speak audibly and clearly. Maintain eye contact with your audience or the camera throughout the presentation.
Submit your presentation to your teacher along with this activity.
1. The protection of forest is important to preserve resources.
2. The advantage of reforestation is that it preserves species native to the area and the disadvantage is that it can lead to a reduction in biodiversity.
3. New trees don't provide the same resources for animals in the forest as adult trees do.
What is reforestation?Reforestation can lead to a decrease in biodiversity, increased soil erosion, and a loss of water resources if it is done improperly
They protect us from erosion, clean the water we drink, and serve as a critical barrier against climate change. A large portion of the world's diverse array of plants and animals can be found in forests, which also provide essential natural resources like food, medicine, and timber.
Newly planted trees are unable to support habitats for wildlife, endangered species, or biodiversity. An existing forest, however, is already full of sturdy, old trees that can absorb much more carbon; all they require is protection from logging.
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how does capillary action allow water to climb up the sides of a straw
The water molecules that are cohesively attracted to one another during capillary action rise up into the straw as one water molecule approaches the straw molecules.
The process of a liquid flowing in a small area without the aid of, or even in opposition to, any outside forces like gravity is known as capillary action. Due to the intermolecular interactions between the liquid and the nearby solid surfaces, it happens. The combination of surface tension, which is brought on by cohesion within the liquid, and adhesive forces between the liquid and container wall act to push the liquid if the tube's diameter is small enough.
Adhesion and cohesion are the names for the characteristics of water that lead to capillary action. Water has a tendency to stick to and rise up the walls of a container due to capillary action. When a tube with a tiny diameter is submerged in water, this is particularly evident. Without any additional force, the water will partially ascend the inside of the tube. Due to the structure of the water molecules and their attraction to the tube walls and to one another, this occurs.
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you are an avid gardener and hypothesize that spreading talcum powder around your tomato plants will prevent snails from eating them. which experimental set up would appropriately test your hypothesis?
An appropriate experimental setup to test your hypothesis would involve creating two groups of tomato plants, one treated with talcum powder and one without any treatment. Both groups should be kept in similar conditions and exposed to snails in a controlled environment.
This can be done by either keeping the plants in an enclosed area with snails or adding snails to the area where the plants are growing. The number of snails eating the plants in each group should be monitored and recorded over a certain period of time. By comparing the number of snails eating the treated plants versus the number of snails eating the untreated plants, one can determine if talcum powder prevents snails from eating the tomato plants.
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four genes (a, b, c, and d) are located on the same chromosome. the recombination frequencies for the genes are found to be:
7%.is the frequencies for the genes are found.
What is genes?The basic unit of heredity passed from parent to child. Genes are made up of sequences of DNA and are arranged, one after another, at specific locations on chromosomes in the nucleus of cells.
The recombinant progeny might occur due to the exchange of genetic material between non sister chromatids known as crossing over during the meiosis.
The chromosome sequence is DABC. A and B distance is 4 map units, B and C is 2 map units, B and D is 5 map units. The distance between A and D is 1 map unit that can be calculated by subtracting the distance between BD and AB ( 5-4). The CD map distance can be calculated by adding the distance between AD, AB and BC ( 1 + 4+ 2). The recombination frequency is equal to distance between them is 7%.
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Suppose a diploid cell with three pairs of homologous chromosomes (2n = 6) enters meiosis.How many chromosomes will the resulting gametes have in each of the following cases?Drag one label into each space at the right of the table. Labels can be used once, more than once, or not at all.1. 3 only2. 2 or 43. 0 or 64. 2, 3, or 45. 0, 3, or 6
Correct answer is (1) 3 only.
'What are homologous chromosomes?'
Homologous Chromosomes are made up of chromosomal pairs that are the same length and have the same centromere locations for genes located at the same locus. Usually, one chromosome comes from the father and the other from the mother. As a result, distinct phenotypes for a same gene are produced when their alleles are different.
The homologous chromosomes that make up the 22 pairs of autosomes in humans. According on the individual's sex, the 23rd pair's homogeneity varies. When compared to males, females have XX homologous chromosomes (non-homologous). Among a homologous chromosome's fundamental components are: Short arm p, long arm q, kinetochore or centromere
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Answer:
b
Explanation:
if an area of your body is particularly sensitive, what can you conclude about that area?
If an area of our body is very sensitive this means that particular area has more nerve endings.
Nervous system helps in the control and coordination of our body.Nervous system has two main divisions: Central Nervous system (CNS)and Peripheral Nervous system(PNS).CNS includes Brain and Spinal cord and PNS includes Nerves and Receptors.
Nerve is a bundle of fibers in peripheral nervous system,Neuron are the structural and functional unit of the nervous system.Nerve endings are the regions present at axonal tip of neuron, It will form a connection with adjacent neuron by synapse.Synapse is a gap between two neurons.Certain chemical messengers called neurotransmitters are secreted at synapse. It will increase the speed and give direction for transmission of impulse.Receptors of various senses like touch, pain, heat, cold etc...are present at nerve endings and they send messages to Brain.
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phages that can either replicate and cause cell lysis or can integrate their dna into the host dna are called
Phages that can either replicate and cause cell lysis or can integrate their dna into the host dna are called lysogenic phages. Lysogeny, often known as the lysogenic cycle, is one of two viral reproductive cycles (the lytic cycle being the other).
During lysogeny, a circular replicon develops in the bacterial cytoplasm or the genome of the host bacterium is integrated with bacteriophage nucleic acid. The host cell's latent bacteriophage allows the bacteria to continue living and growing normally under this circumstance. The genetic material of the bacteriophage, known as a prophage, can be passed to the daughter cells at each subsequent cell division, and later events (such UV radiation or the presence of particular chemicals) might release it, resulting in the proliferation of new phages via the lytic cycle.
The complete question is:
Phages that can either replicate and cause cell lysis or can integrate their DNA into the host DNA are called
A. lysogenic phages.
B. lytic phages.
C. virulent phages.
D. segmented phages.
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a forensic team is collecting evidence from the scene where a murder victim has been found. beetles, adult flies, larva and eggs are found on and near the body. what is the correct order in which these insects should be collected?
Beetle adults, larvae, ants, etc. Adult flies caught with a sweep net can either be dropped directly into 80% ethyl alcohol or sedated with an insect kill jar before being dropped into the alcohol.
What are the soul and body?You refer to your entire self, including your intellect and emotions, when you use the terms "body" and "soul." He committed his entire being to educating young guys. She had now devoted her entire being to the band. wholeheartedly is a synonym.
What names do the body's components go by?The five basic components of human anatomy are the head, neck, torso, arms, and legs. But behind the surface, many biological and chemical processes keep the human body machine running.
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many scientific words such as matter also have every day meaning use context clues to write your own definition for each meaning of the word matter
Answer: Matter in chemistry can mean any substance that takes up space and volume. In everyday language, it can mean issues and importance.
Explanation:
The matter is any substance that takes up space and volume. This definition is often used in chemistry and forms the foundation of all materials. However, the word matter is often used differently in everyday contexts. We find our friends and family asking 'What's the matter with you?'. It means " What is the issue with you?'. It is interesting to note the difference from the definition used in chemistry. Additionally, people also use the word matter to describe the importance of something. For instance, this doesn't matter usually indicates that it doesn't carry any importance.
The process of recording an x-ray of blood vessels is called: _______
The process of recording an X-ray of the blood vessels is termed as angiography.
Blood vessels are the hollow tube-like structures that function to transport blood and other dissolved solutes to the whole body. There are three types of blood vessels: artery, veins and capillary. The artery carries blood away from the heart while the veins carry blood to the heart. Capillaries are present in order to mediate the exchange of blood at the target site.
Angiography is a specialized form of X-ray of the blood vessels and the obtained image in termed as an angiogram. Specialized dyes are used in the process in order to visualize the X-ray efficiently.
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Determine whether the following two sets of data represent populations that are in Hardy-Weinberg equilibrium:a. CCR5 genotypes: 1/1 60 percent; 1/Δ32 35.1 percent; Δ32/Δ32 4.9 percentb. Sickle-cell hemoglobin: AA, 75.6 percent; AS 24.2 percent; SS 0.2 percent
a.) CCR5 genotypes Freq 1 = .776, Freq Δ32 = .224 and p2 = 0.6, 2pq = .348. q2 = .5; yes, in equilibrium b.) Freq A = .877, Freq S = .123 and p2 = .77, 2pq = .22, p2 = .015 , not in equilibrium
What is Hardy-Weinberg Equilibrium?The Hardy-Weinberg Equilibrium is a fundamental principal of population genetics, which states that “genotype frequencies in population remain constant between generations in absence of disturbance by outside factors”
To know if population is in Hardy-Weinberg Equilibrium, scientists have to observe at least two generations. If allele frequencies are same for both generations then population is in Hardy-Weinberg Equilibrium.
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The game contains two games with simultaneous moves. o One of the two games with simultaneous moves have two Nash equilibria in pure strategies. o The other game with simultaneous moves has only one Nash equilibrium in pure strategies. randomly selected
An extensive-form game can contain a part that could be considered a smaller game in itself; such a smaller game that is embedded in a larger game is called a subgame.
A main property of backward induction is that, when restricted to a subgame of the game, the equilibrium computed using backward induction remains an equilibrium (computed again via backward induction) of the subgame. Subgame perfection generalizes this notion to general dynamic games.
As in backward induction, when there are multiple equilibria in the picked subgame, one can choose any of the Nash equilibrium, including one in a mixed strategy.
Every choice of equilibrium leads to a different subgame-perfect Nash equilibrium in the original game. By varying the Nash equilibrium for the subgames at hand, one can compute all subgame perfect Nash equilibria.
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what strength lens, in diopters, is needed to bring his near point to 25 cm?
The strength lens needed to bring his near point to 25cm is 2.18 diopters.
What is strength of lens?The strength of a lens is determined by lens material and angle of the curve that is ground into the lens. Lens strength is expressed in diopters (D), which indicates how much the light is bent.
For a farsighted person with near point (v) = 55 cm rather than normal object distance of u = 25 cm.
Using Lens formula:
1/f= 1/u +1/v
Here, f = focal length ; v = image distance and u = object distance
As the image must be on same side of the lens, then the image distance must be negative.
Hence, 1/f= 1/25 + 1/-55
1/f= 0.0218 cm
f = 45.8 cm
So, f = 0.458m
Dioptic power is inverse of the focal length strength; D= 1/f
=1/0.458
D = 2.18 diopters.
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Note: The question given on the portal is not complete. Here is the complete question.
Question: A farsighted person has a near point of 55 cm rather than the normal 25 cm . Part A What strength lens, in diopters, should be prescribed to correct this vision problem
cystic fibrosis is an autosomal recessive disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (cftr) gene. individuals with cystic fibrosis have sticky mucus in their lungs and other organs. this mucus can lead to infections and additional complications. which of the following pedigrees shows a likely pattern of inheritance in a family with a history of cystic fibrosis? choose 1 answer: choose 1 answer: (choice a) a (choice b) b (choice c) c (choice d) d stuck?review related articles/videos.
The pedigree that shows a likely pattern of inheritance in a family with a history of cystic fibrosisis option A (a).
The respiratory, digestive, and reproductive systems are all affected by the hereditary condition known as cystic fibrosis (CF). The cystic fibrosis transmembrane conductance regulator (CFTR) protein, which controls the flow of salt and water into and out of cells, is the cause of the condition. This results in the accumulation of thick, sticky mucus in the pancreas, lungs, and other organs, which can harm, inflame, and cause persistent infections in these organs. Breathing issues, recurrent chest infections, slow growth, and trouble digesting food are all signs of CF. Although there is no known cure for CF, medications such antibiotics, airway clearing procedures, and nutritional support can help control symptoms and enhance quality of life.
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which statement describes the term ilium? a. the ilium is the longest portion of the small intestine. b. the ilium is part of the hip bone. c. the ilium is a groove or crack-like sore of the skin. d. the ilium is an abnormal passage.
The ilium, also known as iliolumbar syndrome, is a condition that results from a tear with in iliolumbar ligament and is described by the fact that it is a component of the hip bone.
What is The definition of ilium and its purposeThe mature hip bone is formed by joining this fan-shaped bone with the ischium and pubis 1 The ilium, which is a component of the structure that guarantees the spine is maintained when the body is upright, performs a weight-bearing function.
When does your ilium ache signify what?Cancer, inflammation, fractures, trauma, and injuries to any tendons, muscles, including ligaments that join to the ilium are all direct causes for ilium discomfort. Scapholunate joint instability & low back discs injuries are two examples of referred sources.
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According to the Bohr model of the atom, decribe how an electron can get to an excited tate. Alo, decribe what happen when an electron tranition to an energy level cloer to the nucleu
The excited electron transition to an energy level nearer the nucleus is achievable in the Standard model of the atom's electron. Electrons in an atom spin from around positively charged nucleus.
How do electrons work?A negatively charged particle known as an electron can either be free or attached to an atom. One of the three main types of particles inside an atom, along with protons and neutrons, is an electron that is linked to the atom. The nucleus of an atom is made up of electrons, protons, and neutrons together.
Anatomy of a nucleus?Whenever you glance at a photograph of a cell, one of the parts that stands out the most is the nucleus. The nucleus is located in the centre of the cell .
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cells were isolated from another cancerous tumor, and it was found that the dna coding for ets1 in these cancer cells was heavily methylated. how would you expect that to affect the ets1 found in these cells?
Cells were isolated from another cancerous tumor, and it was found that the DNA coding for ets1 in these cancer cells was heavily methylated. Yes, it would expect that to affect the ets1 found in these cells.
Methylation of DNA is a process by which methyl groups are added to the cytosine bases of DNA, typically in the context of CpG dinucleotides. When a cytosine base is methylated, it can affect the activity of genes by altering the ability of transcription factors to bind to the DNA, or by recruiting proteins that can change the chromatin structure and make the gene inaccessible to the transcription machinery. If the DNA coding for ets1 in these cancer cells is heavily methylated, it would likely result in decreased expression of the ETS1 protein. This is because methylation of CpG islands in the promoter regions of genes is often associated with repression of gene expression. So, in this case, the heavy methylation of ets1 gene would decrease the binding of the transcription factors to the promoter region and thus decrease the expression of ETS1 protein in these cancer cells. ETS1 is a transcription factor that regulates the expression of a variety of genes involved in cell proliferation, invasion, and angiogenesis. The reduced expression of ETS1 in cancer cells due to heavy methylation of its gene may lead to a decrease in the ability of these cells to grow and spread, which could have important implications for the treatment of the cancer.
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the most reliable method for determining the appropriate dosage of rh immune globulin to give to an identified rh immune globulin candidate after delivery is:
The most reliable method for determining the appropriate dosage of rh immune globulin to give to an identified rh immune globulin candidate after delivery is flow cytometry.
What are immunoglobulinsImmunoglobulin is another name for antibodies. This protein, which has a vital role in the immune system, is produced by plasma cells and lymphocytes.
Antibodies work to protect your body by attaching themselves to bacteria, viruses, or allergens, before destroying them. However, in people with certain conditions, immunoglobulin can attack and damage healthy organs and tissues, thus triggering the emergence of autoimmune diseases.
Types of antibodiesThe body produces various types of immunoglobulins to protect you from disease. Each type of antibody has its own role and place in your body.
The following are several types of immunoglobulins produced by the body to support the work of the immune system:
1. Immunoglobulin A (IgA)
You can find this type of antibody in the stomach, intestines, mucous membranes of the lungs, and sinuses. Not only that, IgA can also be found in fluids produced by the body, including breast milk, blood, tears and saliva.
2. Immunoglobulin G (IgG)
IgG is a type of antibody that is commonly found in body fluids and blood. Immunoglobulin G protects your body from infection by remembering viruses and bacteria it has encountered before.
When the same virus or bacteria is about to infect the body, these antibodies will immediately attack to protect you.
3. Immunoglobulin M (IgM)
This type of immunoglobulin is produced when your body is exposed to a new bacterial and viral infection for the first time. IgM is the body's first line of defense against infection.
When the body feels an attack by bacteria and viruses, the level of IgM in the body will increase in a short time. Immunoglobulin M levels will slowly decrease when IgG arrives to provide long-term help and protection.
4. Immunoglobulin E (IgE)
This type of antibody is produced when the body overreacts to harmless substances such as pollen or animal dander (allergy). IgE can be found in the blood in very small amounts.
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Which of the following describes a Mendelian trait?
OA. Many genes control the ultimate height of a human.
O B. Three different alleles control one aspect of human blood type
C. Humans have either straight thumbs or curved thumbs.
OD. Human
D. Human eye color ranges from almost black to very light blue.
Answer:
C. Humans have either straight thumbs or curved thumbs.
Explanation:
Mendelian genetics is sort of black or white business (one or the other, and not really a spectrum which is why it can't account for incomplete dominance or codominance). So if straight thumb is dominant trait and curved thumb is recessive, that's how it will be seen in population.
Now explain your diagnosis. Start your argument by writing something like this:
“My group believes that Elisa has/does not have ___. I think that she does/does not have the ___ condition because . . .”
(Then, explain how molecules move through the body when someone has the condition you investigated, and compare that to Elisa’s test results.)
Answer:
you can use this syntax to answer your q
Explanation:
"My group is convinced that Elisa has a particular illness. Based on her symptoms and test findings, I believe she has the illness because the molecules of the particular drug we have been looking into are not flowing through her body as they should. Elevated quantities of this drug were found in her test results, which is a certain sign of this illness. Additionally, she exhibits symptoms that are characteristic of patients who have this illness."
Human blood cells have a salt concentration of about 0.9%. a patient's blood cell
salt concentration is measured at 0.5% and has water toxicity. what type of solution
should the patient receive in order to establish a healthy equilibrium?
When blood cells are present in a 0.9% NaCl solution, the internal and extracellular substances are in osmotic stability across the cell membrane, which is a sign that the solution is isotonic.
Why do we refer to people as patients?Patient is a translation of the Latin word "patiens," which means to suffer or endure. In this language, the patient is truly passive, experiencing the required suffering and bearing with the outside expert's actions.
Exactly what the patient says is true?Apostrophes (') are used to make nouns possessive when they are in the plural form, which contains -s at the end. Patients is a word whose plural form was changed to patients' with regard to the question by inserting an apostrophe.
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explain how this experiment helped to map out the metabolic pathway for arginine production in bread mold.
The "one gene, one enzyme" theory was supported by George Beadle and Edward Tatum's research on the red bread mould Neurospora crassa, which revealed that genes function by controlling many chemical processes.
According to their theory, specific mutations prevented the mould from using a pathway to create arginine from precursors in the surrounding media. Knowing that Neurospora could synthesis its own amino acids when maintained on minimal media, which was deficient in nutrients save for a few minerals, simple sugars, and one vitamin, they were able to grow Neurospora in this manner (biotin). They discovered a number of mutations that were known to prevent the synthesis of arginine, an amino acid essential for the growth of mould.
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chargaff Similarly, there is just as much ___________________ as there is _____________________
Answer:
yes the average for A approximately equals the average for T , and the average for G approximately equals the average for C
What are 2 examples of reproductive isolation?
examples of reproductive isolation are : Fish from two closely related species that inhabit various areas do not mate. Fruit flies of two distinct species producing various pheromones.
A group of evolutionary traits, physiological processes, and reproductive isolation mechanisms are necessary for speciation. They either stop other species' members from having children or make sure that any children are sterile. By limiting the exchange of genes between closely related species, these barriers protect the integrity of a species. Numerous categories have been used to group the reproductive isolation methods. In general, pre-zygotic mechanisms—those that work prior to fertilization (or prior to animal reproduction, in the case of humans—and post-zygotic ones—those that function following it—are how zoologist Ernst Mayr defined the mechanisms of reproductive isolation. The mechanisms can manifest in species with distinct geographic ranges (sympatric speciation) or in those with overlapping distributions that are genetically regulated.
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The skeletal system, circulatory system, nervous system and digestive system work completely independently of one another. T/F?
Answer:
False
Explanation:
To keep the body's general health and functionality, all of these systems cooperate. The skeletal system supports the body and safeguards the key organs. The circulatory system transports nutrition and oxygen to the body's cells as well as waste materials. The body's reaction to internal and external stimuli is managed and coordinated by the neurological system. The circulatory system transfers these nutrients to the body's cells after the digestive system digests and assimilates meals.
Even while each system does have its own unique duties and tasks, they are all interrelated and dependent on one another in order to operate effectively. They collaborate to preserve the body's general health and functionality.
