birds can significantly alter their body shape and increase their planform area, a, by spreading their wing and tail feathers, thereby reducing their flight speed. if during landing the planform area is increased by 50% and the lift coefficient increased by 30% while all other parameters are held constant, by what percent is the flight speed reduced?
Answers
Assuming that the lift coefficient is directly proportional to the flight speed, the flight speed would be reduced by 30%.
The coefficient of lift is a dimensionless parameter that measures the effectiveness of an airfoil or lifting body in producing lift, particularly in relation to the amount of drag that it produces. It is a function of the airfoil's shape, its angle of attack, and the local flow conditions. It is calculated by dividing the lift of the airfoil by the density of the air times the velocity of the air times the surface area of the airfoil. The lift coefficient is closely related to the angle of attack of the airfoil. As the angle of attack increases, so does the lift coefficient, up to a point, after which the lift coefficient begins to decrease as the airfoil stalls. The lift coefficient can also be affected by changes in the airfoil's camber, its thickness, and its surface area.
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Related Questions
which gynecologic procedure is performed for treatment of urinary incontinence or cystocele?
Answers
The gynecologic procedure that is commonly performed for the treatment of urinary incontinence or cystocele is called a vaginal mesh implant. This procedure involves the surgical placement of a mesh device in the vaginal wall to provide support and stabilize the bladder or urethra.
This helps to alleviate symptoms of urinary incontinence and cystocele, which can be caused by weakened pelvic muscles and tissue. The mesh is typically made of synthetic materials and is designed to be durable and long-lasting.
Although the vaginal mesh implant procedure has been effective in treating urinary incontinence and cystocele, it has also been associated with a number of complications. These can include pain, infection, mesh erosion, and organ perforation. As a result, the use of vaginal mesh implants has become somewhat controversial in recent years, and some countries have even banned their use entirely.
As with any medical procedure, it is important to carefully weigh the potential benefits and risks of a vaginal mesh implant before deciding to undergo the procedure. Patients should discuss their treatment options with their healthcare provider and thoroughly research the procedure to make an informed decision.
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the musculocutaneous nerve is a major terminal nerve of the brachial plexus. group of answer choices true false
Answers
Yes it is true that the musculocutaneous nerve is a major terminal nerve of the brachial plexus.
The lateral cord's musculocutaneous nerve (C5-7) is one of its terminal branches. The coracobrachialis, biceps brachii, and brachialis muscles are the three muscles that make up the anterior compartment of the arm and are innervated by the musculocutaneous nerve. It is also in charge of the lateral forearm's cutaneous innervation.
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transcription factors include . a. activators, deactivators, and repressors b. deactivators and repressors only c. activators and repressors only d. activators, enhancers, and repressors e. enhancers and repressors only
Answers
Transcription factors include d. activators, enhancers, and repressors. The proteins that bind to transcriptionally active or inactive DNA regulatory regions (promoter, enhancer).
The two main categories of transcription factors are "activators" and "repressors." Gene activation results from the recruitment of coactivators by activators, whereas transcriptional repression results from the recruitment of corepressors by repressors. Proteins called transcription factors control the transcription of genes, which is the copying of genes into RNA before they are used to make proteins.Numerous transcription factors are present in the human body. Likewise, so does the body of a fungus, tree, or bird. The proper expression of the correct genes in the appropriate bodily cells at the appropriate time is made possible by transcription factors.
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Using the spirographic data shown, what is the minute ventilation of an average adult male at rest breathing at a rate of 10 breaths per minute?.
Answers
Minute ventilation refers to the total volume of air inspired and expired in one minute. It can be calculated by multiplying the tidal volume (TV) and respiratory rate (RR). In the spirographic data given, the tidal volume is around 500 ml, and the respiratory rate is 10 breaths per minute.
Hence, minute ventilation = TV x RR = 500 ml x 10 breaths per minute = 5000 ml/minute or 5 liters/minute. This is the normal value of minute ventilation in an average adult male at rest. In general, minute ventilation increases with exercise or any physical activity that requires the body to consume more oxygen and expel more carbon dioxide.
However, in certain respiratory disorders like chronic obstructive pulmonary disease (COPD), minute ventilation may be reduced due to a decrease in lung capacity or airflow limitation. Hence, minute ventilation is an important parameter to monitor in clinical settings to assess pulmonary function and respiratory health.
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In your own words, describe what information the visible DNA fingerprint provides for each DNA sample.
Answers
Answer:
A visible DNA fingerprint provides information about the unique genetic makeup of an individual by displaying a pattern of DNA fragments. This pattern is created through a process called gel electrophoresis, where the DNA samples are separated based on their size and charge. The resulting bands on the gel represent fragments of the DNA that have migrated through the gel. The pattern of the bands is unique to each individual and can be used for identification purposes. The visible DNA fingerprint allows scientists to compare different DNA samples, such as those from a crime scene or paternity testing, and determine if they come from the same individual or not.
Explanation:
ALLEN
Quốc gia Đong Nam A nào có sản lượng lúa gạo lớn nhât
Answers
Answer:
Việt Nam
Việt Nam has the greatest rice production of any southeast Asian country.
Write a scientific explanation for how cells are affected by a lack of oxygen when trying to produce energy
Answers
Necrosis, or cell death, occurs when glucose and oxygen are not provided to cells. It's interesting to note that cells can survive hypoxia.
Fermentation. Certain organisms can continuously convert energy even when there isn't any oxygen present. To produce ATP, they first go through glycolysis and then anaerobic fermentation. The oxygen you breathe is used by your body cells to convert the food you consume into energy. It is known as cellular respiration. The cell utilizes oxygen during cellular respiration to metabolize sugar.
The energy your body need is created when sugar is broken down. You feel exhausted when your body is oxygenally depleted. When your lungs are unable to breathe in and out properly, fatigue sets in more rapidly. This starts a nasty loop. whenever you get fatigue.
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extensively discuss haemolysis
Answers
Hemolysis means the destruction or breakdown of red blood cells that results in the release of hemoglobin into the surrounding fluid, and there are many types of hemolysis, such as extrinsic hemolysis and intrinsic hemolysis.
What is the significance of the hemolysis?There are two kinds of hemolysis, such as extrinsic hemolysis, in which the RBC breaks down due to physical trauma, exposure to certain drugs or chemicals, etc., while in intrinsic hemolysis the RBC breaks down due to genetic mutations or other factors.
Hence, hemolysis means the destruction or breakdown of red blood cells that results in the release of hemoglobin into the surrounding fluid, and there are many types of hemolysis, such as extrinsic hemolysis and intrinsic hemolysis.
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The estimated percentage of cancers that are due to poor diet and lifestyle habits is approximately Group of answer choices3/41/21/31/4
Answers
Solution:
A large body of literature indicates that 30% to 40% of all cancer cases are related to poor dietary or lifestyle habits.
That is equivalent to 1/3.
So that the correct answer is:
1/3
Our genes are very similar to those of chimpanzees. The difference is probably only 1.5% of our DNA. But there is one obvious difference: chimpanzees have 24 pairs of chromosomes, we have 23 pairs. And the reason is because two smaller ape chromosomes have come together and fused in human beings.
Answers
Our genes are the fundamental units of heredity, which contain the genetic information that determines our physical and behavioral traits.
These genes are located on chromosomes, which are thread-like structures made of DNA and protein. Humans typically have 23 pairs of chromosomes, totaling 46 chromosomes in each cell of the body. However, chimpanzees have 24 pairs of chromosomes. The reason for this difference lies in a chromosomal fusion event that occurred in the human evolutionary lineage. This event involved the fusion of two smaller ape chromosomes, resulting in the formation of a single larger chromosome in humans. Despite this structural difference in our chromosomes, our genetic makeup is still very similar to that of chimpanzees, with an estimated 98.5% similarity in our DNA sequences. This similarity suggests that we share a common ancestor with chimpanzees, and that we have diverged from each other over time through the process of evolution.
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Use the drop-down menus to indicate which endocrine structure is being described in each case. is the connection between the nervous system and the endocrine system. is called the master gland because it affects the release of the hormones of the other glands in the endocrine system. a malfunction in this gland that releases growth hormone can lead to gigantism.
Answers
The following are the statements that describe the endocrine structure in each case.
What do you mean by Endocrine Glands?The Endocrine gland may be defined as an organ that makes hormones that are released directly into the blood and travel to tissues and organs all over the body.
Hypothalamus is the connection between the nervous system and the endocrine system. The pituitary gland is called the master gland because it affects the release of the hormones of the other glands in the endocrine system. The pituitary gland: a malfunction in this gland that releases growth hormone can lead to gigantism. This disorder is known as Acromegaly.Therefore, the above are the statements that describe the endocrine structure in each case.
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Answer:
hypothalamus
pituitary
pituitary
Explanation:
edge 2022
one reason Mendel chose pea plants for his experiment.
Answers
Answer:
Peas were an ideal choice for Mendel to use because they had easily observable traits there were 7 of which he could manipulate
The main reason why Mendel used a pea plant rather than anything else was because a pea plant had observable traits that could be easily recognized. Seven, in particular, he could manipulate in his experiment. Finally, he would cross-pollinate the peas and study each trait that passed on from one pea to another.
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DNA is found in every cell of an organisms body.
Answers
This is true
May nilbin be with you
All of the following are functions of the citric acid cycle except: a. Production of NADH b. Adding electrons and protons to oxygen to form water c. Release of CO2
Answers
Adding electrons and protons to oxygen to form water, thus the correct answer is b.
The citric acid cycle, also known as the Krebs cycle or the tricarboxylic acid (TCA) cycle, is a central metabolic pathway that occurs in the mitochondria of eukaryotic cells. It is responsible for the breakdown of acetyl-CoA, a product of glucose, fatty acid, and amino acid metabolism, into carbon dioxide, water, and energy.
However, the citric acid cycle does not directly contribute to the production of water by adding electrons and protons to oxygen. This process occurs during oxidative phosphorylation, which follows the citric acid cycle and involves the transfer of electrons from NADH and FADH2 to oxygen through a series of electrons transport chain complexes, culminating in the formation of water.
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describe one way land is shaped by erosion and deposition through gravity.
Please help me!!!!! I will give brainiest who does answer correctly.THANKS BUT HURRY UP!!!! IT"S science but yeah
Answers
Answer: One way the land is shaped by erosion and deposition can be illustrated is through the use of a water source, where the heavy sediments will stay at the bottom of the stream, and the light particles get washed away, leaving a rocky riverbed, rocky.
Explanation:
Gravity moves earth materials from higher elevations to lower elevations. Landslides, avalanches, and mudflows are examples of dangerous erosion by gravity. Slump and creep move material slowly downslope. Plants, retaining walls, and good drainage are ways to help prevent landslides.
\(\mathrm\orange{Hope\ it\ is\ helpful\ to\ you\ Darling}\)❤️
what is biogeogrphic isolation
Answers
Answer:
biogeographic isolation is the separation of members of a species through geographical or biological forces.
Explanation:
the brains of people who suffer from depression tend to have low levels of
Answers
Answer:
they have lower levels of the neurotransmitter serotonin
What are the membrane components that interact in the respiratory chain?
Answers
The four main membrane components of the respiratory chain work together to efficiently transfer electrons and generate ATP through the process of oxidative phosphorylation.
The respiratory chain is a complex series of electron transport reactions that occur in the inner mitochondrial membrane, where the energy from food molecules is converted into ATP, the cellular energy currency. The respiratory chain comprises four main membrane components, which interact through a series of redox reactions:
NADH dehydrogenase complex: This complex is responsible for the transfer of electrons from NADH to ubiquinone (coenzyme Q) in the first step of the respiratory chain. It is the largest and most complex of the four complexes and consists of numerous subunits that work together to facilitate electron transfer.
Succinate dehydrogenase complex: This complex is responsible for transferring electrons from succinate to ubiquinone, generating \(FADH_2\) in the process. It is the only respiratory chain enzyme that is embedded in the mitochondrial inner membrane but is also part of the citric acid cycle in the mitochondrial matrix.
Cytochrome \(bc_1\) complex: This complex is responsible for the transfer of electrons from ubiquinol to cytochrome c, creating a proton gradient across the inner mitochondrial membrane that is used to drive ATP synthesis.
Cytochrome oxidase complex: This complex is responsible for the final step in the electron transport chain, which involves the transfer of electrons from cytochrome c to molecular oxygen, producing water in the process. The energy released during this reaction is used to pump protons across the mitochondrial inner membrane, driving ATP synthesis.
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Over the years, bacteria have become less sensitive to antibiotics used for medicinal and sanitation purposes. This lack of sensitivity is termed antibiotic resistance. How is antibiotic resistance an adaptation?
A.
Antibiotic resistance has caused antibiotics to become more specialized, thus adapting the antibiotics to particular bacteria species.
B.
The trait giving bacteria antibiotic resistance has reproductively isolated groups of bacteria.
C.
The trait giving bacteria antibiotic resistance has become common, giving bacteria with the trait a selective advantage.
D.
Antibiotic resistance makes it more difficult for bacteria to infect hosts, thus is a selective advantage for the host.
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Answers
Does water that collects in an aquifer remain there forever? Explain.
Make the answer short and simple.
Answers
Answer:
No, the water in an aquifer does not remain in the aquifer forever. It can be removed from the aquifer by springs, by flowing into a surface water body, or by wells dug by people.
Explanation:
compare and contrast endocytosis and exocytosis.
please help!!!
Answers
The picture below shows a typical structure of....
A:cell membrane
B:ribosome
C:lysosome
D: cell wall
Answers
I would answer with A. cell membrane
I know it's not B. ribosome for a fact
A researcher hypothesizes that in mice, two autosomal dominant traits, trait Q and trait R, are determined by separate genes found on the same chromosome. The researcher crosses mice that are
heterozygous for both traits and counts the number of offspring with each combination of phenotypes. The total number of offspring produced was 64. The researcher plans to do a chi-square
analysis of the data and calculates the expected number of mice with each combination of phenotypes. Which of the following is the expected number of offspring that will display both trait Q and
trait R
Answers
Answer:
Explanation:
If we consider the traits Q and R individually, then
P(Q) = 75% (Q is dominant, from hetero-zygous parents)
similarly
P(R) = 75% (Q is dominant, from hetero-zygous parents)
Assuming the two alleles P & Q are indepedent, then
P(Q and R) = 75% * 75% = 56.25%
Out of 64 offsprings, we expect 75*56.25% = 9/16*64 = 36 express both Q and R traits, on the average.
For the given experiment 36 offspring out of 64 will produce both Q and R traits.
Di-hybrid Cross:
It is cross of organisms in which scientist perform the experiment keeping two traits in mind.
One parent is pure and dominant while another is Heterozygous for traits.
The parental genotypes will be,
RRQQ x RrQq
The gametes will be,
RQ, Rq, rQ, and rq
The cross,
RQ Rq rQ rq
RQ RQRQ RQRq RQrQ RQrq
Probability, If the traits Q and R expressed
P(Q) = 75% (Q is dominant, from heterozygous parents)
P(R) = 75% (Q is dominant, from heterozygous parents)
Probability, if two alleles P & Q are independent, then
P(Q & R) = 75% x 75% = 56.25%
The offspring that express both alleles, out of 64 offspring,
\(\bold {75 \times 56.25\% = \dfrac {9}{16\times 64} = 36 }\)
Therefore, for the given experiment 36 offspring out of 64 will produce both Q and R traits.
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A pandemic disease is usually caused by a new pathogen. Why are a larger number of people affected by a new pathogen?
A new pathogen can be similar to an older pathogen.
A new pathogen is unable to be observed without a microscope.
People are not immune to a new pathogen.
People show symptoms of a new pathogen faster.
Answers
A pandemic disease caused by a new pathogen affects a larger number of people because people are not immune to it.
Unlike an older pathogen, the immune system has not been exposed to a new pathogen, so it does not have the antibodies to fight it off. This makes it easier for the new pathogen to spread rapidly among people who have not developed immunity. Additionally, a new pathogen is often more virulent and contagious, causing people to show symptoms faster and allowing it to spread more easily.
Furthermore, a new pathogen may be able to mutate quickly, allowing it to evade the immune system and making it harder to control. Lastly, a new pathogen may be different from other pathogens and may require a different approach for treatment and prevention, adding to the challenge of controlling its spread. Overall, a new pathogen poses a significant threat to global health, and early detection and appropriate measures are essential to minimizing its impact.
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There was a nearly intact fossil of a hadrosaur called Dakota. How did this find change our knowledge of the hadrosaur? List three specific ways.
Answers
Answer: Environment, skin coating, and perhaps seasonal migration.
Explanation: The hadrosaur has become an unmistakable species due to its unusual bill, and bipedal legs. However this new fossil could change many studies. First off, environmental hazards. Due to the amount of carnivorous fossils found in the Dakota area, finding a nearly intact fossil of any sort should be quite impossible. This brings paleontologists to believe hadrosaurs may have had some sort of defense against predators, which brings us to skin coating. To be found in such an arctic area must have meant it would be difficult for anything herbivorous to live in the area, unless feathers, or fur was involved. This could change every theory about the so called scaly beasts we refer to as dinosaurs. This brings us to our final topic, migration. Every winter if you were to go outside, it would be highly unlikely to hear birds. This is known as migration, a period when certain animals of multiple species, typically birds, move to warmer areas for the winter. Consider if the birds descending from dinosaurs theory was correct. This could in fact be how birds somehow get this preconceived notion to migrate. This, just as wild dogs are naturally aggressive, could be instinct.
Question 15 (1 point)
Which type of organism is NOT a part of the Kingdom Plantae?
a. trees
b. mushrooms
c. flowers
d. fruits
Answers
Answer:
i think fruits
Explanation:
plante include land plants
fruits vegetables animals aren't
Answer:
Mushrooms
Explanation:
How are proteins built using the information provided by a molecule of RNA prediction?
Answers
A cell's messenger RNA molecules contain instructions that are read by the ribosome, which then uses these mRNAs to assemble amino acids into proteins in the precise order specified by the mRNA.
How is RNA converted into protein?Three processes make up the method by which RNA is translated into protein: initiation, elongation, and termination. A tRNA and ribosome join an mRNA during initiation. Methionine will always be the first amino acid in the sequence since the start codon, AUG, codes for it.
When mRNA exits the nucleus, it travels to a ribosome, which is made up of proteins and rRNA. The ribosome reads the mRNA's codon sequence. The ribosome is supplied with amino acids via tRNA molecules.
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Determine which word best describes the function of
hormones.
A. Protein
B. Molecule
C. Growth
D. Communication
Answers
Have a nice day!!
Answer:
d
Explanation:
What sort of evidence must be gathered to support the idea that all living things are composed of cells? group of answer choices
Answers
The evidence that supports the presence of cells in all living things is from collecting the samples of many types of living beings and identifying the presence of cells with the help of a microscope.
What is a cell?A cell in a human body considers the smallest unit of function made up of molecules. There are different types of cells found which includes plants cell and animal cells.
They support the structure of the body, help to absorb nutrients from meals, transform those nutrients into energy, and perform a specific function. They have the ability to regenerate themselves and contain the body's genetic material.
Therefore, the presence of cells can be identified by collecting many living samples.
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Boundary layer separation is likely to occur in flow of a circular jet of air normal to a flat plate "stagnation flow."
T/F
Answers
The statement "Boundary layer separation is likely to occur in the flow of a circular jet of air normal to a flat plate "stagnation flow." is True due to the adverse pressure gradient caused by the decelerating fluid flow along the plate's surface.
Boundary layer separation occurs when the flow of fluid adjacent to a solid surface (in this case, the flat plate) experiences an adverse pressure gradient, causing the fluid particles to slow down and eventually reverse direction. This results in the formation of a separated region where the flow detaches from the surface.
In the case of a circular jet of air impinging on a flat plate, the stagnation flow is characterized by a high-pressure region at the point where the jet meets the plate.
This high-pressure region causes the fluid to slow down and flow radially outward from the stagnation point along the plate's surface. As the fluid moves outward, it encounters an adverse pressure gradient due to the decelerating flow, which leads to boundary layer separation.
The separated flow can lead to the formation of recirculation zones, which can cause a decrease in the overall efficiency of the system and impact the heat transfer and aerodynamic performance of the flat plate.
In summary, it is true that boundary layer separation is likely to occur in the flow of a circular jet of air normal to a flat plate (stagnation flow).
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