When the power is harnessed and the energy converted to electricity, the person could have climbed using only one 100-W light bulb.
What is power?Power is defined in physics as the amount of energy transferred or converted per unit time. The watt is the unit of power in the International System of Units, equal to one joule per second.
It can be defined as the rate at which work is completed in a given amount of time. Watt (W) is the SI unit of power, which is joules per second (J/s).
And, because our estimate is very rough, we can say that the person's power output is comparable to the power output of a 100 W light bulb. Let's say that the mass is 80kgbabs it takes 30 seconds to climb 5 meters of stair, the energy will be:
= mgh
= 80 × 9.81 × 5
= 3924J
Power will be:
= 3924 / 30
= 130W
Based on the results obtained, we can conclude that the person's power output is comparable to the power output of one 100-W light bulb, and that the person could have continued to burn only one 100-W light bulb during the climb.
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Complete question
How does your power output in climbing the stairs compare to the power output of a 100-watt light bulb? if your power could have been harnessed and the energy converted to electricity, how many 100-watt bulbs could you have kept burning during your climb?
Alex was brought into the clinic by his
football coach that stated that Alex is
delirious, has intense cramps and has been
vomiting since he drank over 1000 mL of
water in under 45 minutes at football
practice.
Normally, the sodium concentration inside
the cells is equal to the sodium
concentration outside of the cell. However,
drinking this much water in a short amount
of time will cause the inside
of the cell to become diluted.
To compensate, water from
the outside of the cell will
rush into the cell, causing
water intoxication.
Which cell
organelle
allows this to
happen?
Answer:blood
Explanation:
The cell membrane allows water to rush into the cell when it becomes diluted due to excessive water intake.
The cell organelle that allows water to rush into the cell when it becomes diluted due to excessive water intake is the cell membrane. The cell membrane is selectively permeable, meaning it controls what substances can enter and leave the cell.
In this case, the dilution of the cell causes the concentration of solutes inside the cell to be lower than the concentration outside, leading to osmosis, where water molecules move from an area of higher concentration to an area of lower concentration through the cell membrane.
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What technique was most helpful to watson and crick in developing their model for the structure of dna?.
X-Ray crystallography was the technique that helped Watson and crick in developing their model for the structure of DNA.
A crystal's crystalline structure causes a beam of incident X-rays to diffract into a variety of distinct directions, which is how X-ray crystallography, an experimental science, determines a crystal's atomic and molecular structure.
Famous researchers Watson and Crick made history by figuring out the structure of DNA. They discovered that DNA is composed of two strands wound around one another to form a double-helical structure using X-ray crystallography. It was developed by Rosalind Franklin using an approach called X-ray crystallography and showed the DNA molecule's helical structure. The genetic code for all living things is encoded in two chains of nucleotide pairs that make up DNA, as Watson and Crick discovered.
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in cellular respiration, what is the relationship between the energy content of the reactants (glucose and o2) and products (co2 and h2o)?
There must be a difference between the energy contents of the reactants (glucose and oxygen) and the products (CO2 and H2O).
The citric acid cycle, the glycolytic cycle, and the electron transport chain are the phases.the citric acid cycle, the glycolysis process, and the electron Oxygen + Water + Glucose (sugar) + Carbon Dioxide CO2 + H2O C6H12O6 + 6O2 Cellular respiration, also known as aerobic respiration, is a sequence of chemical processes that start with the reactant molecules of sugar and oxygen and end with the waste products of carbon dioxide and water, transport network.
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remembering how to solve a puzzle without any conscious recollection that you can do so best illustrates (fill in the blanks) memory.
The ability to do so finest exemplifies implicit memory.
Consciousness or conscience?"An inner sensation or voice which tells you weather your actions are good or bad" is what the term conscience denotes. An adjective meaning "aware of and responsive to one's surroundings" is "conscious."
Who can be conscious?The Latin term conscious originally meant "knowing" or "aware." Therefore, a conscious individual is aware of her surroundings as well as of her own presence and ideas. If you're "ego," you're extremely conscious of how you believe you look or act and may even be embarrassed by it.
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how does the protozoan trypanosoma evade detection by the immune system? how does the protozoan trypanosoma evade detection by the immune system? it can change the surface antigens frequently, preventing the immune system from tracking it. it can resist oxidation inside macrophages. it produces a capsule which is composed of polysaccharides similar to those found in the host. it prevents phagosome-lysosome fusion.
Protozoan trypanosome evades detection by frequently changing the surface antigens, thereby preventing the immune system from tracking it.
What are Protozoan trypanosoma?
Typanosomoa belong to the genus kinetoplastids, class trypanosomatidae. They are a group of monophyletic single celled parasitic flagellate organisms(protozoa). They infect the blood of vertebrates (even humans), which is usually transmitted by insect bites. They include some that might cause serious diseases, like sleeping sickness and chagas disease.
Symptoms caused by this protozoa include fever, irritability, headaches, swollen lymph nodes, aching muscles/ joints and even extreme fatigue. These symptoms are common for the sleeping sickness which is also called African Trypanosomiasis. This sickness is caused by the species Trypanosoma brucei, which is usually transmitted by the tsete fly, found only in the sub-Saharan Africa.
A species of the protozoa called Trypanosoma culicavium also infects birds and mosquitoes.
Prolonged infections are possible by this protozoan because it goes through antigenic variation, which is how the parasite is able to evade the antibody mediated elimination.
Hence, the protozoan trypanosoma evades detection by frequently changing the surface antigens.
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Question 1 of 10
Carbon, hydrogen, and oxygen can combine to form monomers called fatty
acids. Which type of macromolecule contains many fatty acids?
A. Lipid
B. Nucleic acid
C. Protein
D. Carbohydrate
SUBMIT
Answer:lipid
Explanation:
The acquisition of traits by their transmission from parent to offspring is called?.
The acquisition of traits by their transmission from parent to offspring is called hereditary.
Acquired tendencies, or acquires traits aren't transmitted via duplicate to offspring.
The changes that make up obtained tendencies can tackle a lot of paperwork and degrees of visibility, however all of them have a comparable trait. After birth, they modify a dwelling organism's shape or feature in a few way. The tendencies which can be transmitted from dad and mom to offsprings is known as heredity or inheritance.
Heredity, usually called inheritance or organic inheritance, is the technique with the aid of using which features are exceeded down from one era to the next. Whether via asexual duplicate or sexual duplicate, the offspring cells or organisms collect the genetic makeup in their dad and mom. Genetics is the examine of heredity in biology.
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a 75 year-old male presents to the er with the following stroke findings: right-sided hemiparesis (face and hand more affected than leg), homonymous hemianopsia of the right half of both visual fields, and aphasia. where is the location of his stroke?
B-shaped middle cerebral artery. As well as sensory findings in the PCA, amourosis fugax, or visual abnormalities in the internal carotid (ACA findings more common in the legs than the hands),
What are some homonym examples?Homophones are two words that have completely different meanings yet share the same spelling or sound. One wonderful homonym is "bear," which in addition being the word of an animal, also denotes "tolerating anything."
Why are homophones used?Numerous advantageous learning opportunities are provided by homophones. With the use of homophones, students may more clearly appreciate the benefits of phonemic writing and the variations between English pronunciation and spelling.
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the layer of adipose tissue that insulates and cushions the human body is located directly between the:
Layer of adipose tissue that insulates and cushions the human body is located directly between the: dermis and the underlying fascia.
What is the function of adipose tissue?A layer of subcutaneous fat is present between the dermis and the underlying fascia that helps to insulate the body from cold, protects deep tissues from blunt trauma and also serves as a reserve source of energy for the body.
White adipose tissue is the predominant type in adult humans, but the greatest portion of this tissue is located in the hypodermis of the skin.
Adipose tissue is found below the skin and around the heart and other organs, which is used for insulation, energy, and organ protection.
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antibodies: question 8 options: require haptens to function make up part of the primary immune system are made from t cells are made from plasma cells none of the above
Happens are not necessary for antibodies to work. To work, it needs an antigen. They are created by T and B cells rather than T cells.
From where do happens originate?Urushiol, a reactive Quinone-type chemical, gets oxidised in the skin cells after being ingested from a poison ivy plant, where it subsequently interacts with skin proteins to form happen adducts.
Do happens cause T cells to respond?Low molecular weight substances that are unable to start an immune response on their own are referred to as happens. However, these tiny molecular weight substances can provide an antigenic determinant that can cause T-cell activation when they are covalently attached to circulating proteins.
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homologous structures multiple choice have fully divergent functions. are only shared by organisms of the same genus. are also called analogous structures. are often shared by organisms in the same line of descent. have identical functions.
Homologous structures are : d)often shared by organisms in the same line of descent. Hence d) is correct option.
What are homologous structures?Similar physical features in organisms that share a common ancestor but features are completely different are called Homologous structures. Example for homologous structures are the limbs of humans, cats, whales, and bats.
Homologous structures are body parts of organisms that have same anatomical features, therefore, indicating a common ancestor or developmental origin. They can share the same trait but they do not have the same function. Some examples are: the forelimbs of the bats and of humans are homologous structures.
Homologies are traits present in more than two organisms that are inherited from the common ancestor of those particular organisms.
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Answer all please I need it asap
1. A(n) _____________________ transports electrons, along with their energy, to another molecule.
2. What is the equation for photosynthesis?
3. In the __________________________, NADPH and ATP combine with carbon dioxide to produce sugars.
4. In the _________________________, light energy from the sun splits water and generates ATP and NADPH.
5. True / False: Chloroplasts are organelles found in the cells of heterotrophs.
6. True / False: Autotrophs need light in order to carry out photosynthesis.
Explanation:
1. Electron carrier
2. CO2 + H2O --> C6H12O6 + O2
3. Stroma
4. Thylakoid membrane
5. False
6. true.
hope it helps. :)
icosahedral symmetry of viral capsids is achieved by arranging viral capsomer proteins in what geometric arrangement?
Symmetry of icosahedral viral capsids is triangle.
A capsid is the protein shell of a virus, enclosing its genetic cloth. It includes several oligomeric (repeating) structural subunits fabricated from protein called protomers. The observable three-dimensional morphological subunits, which may also or won't correspond to individual proteins, are known as capsomeres.
Viral capsids are nanometre-sized packing containers that own complicated mechanical houses and whose important function is to encapsidate the viral genome in a single host, to move it and to finally release it internal every other host mobile.
Capsid formation takes place via a nucleation procedure pushed by means of the favorable binding energy between capsid proteins.
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Select all the correct answers.
What happens to water when it changes to ice?
Its density increases.
Its density decreases.
Its mass increases.
Its mass decreases.
Its volume increases.
Its volume decreases.
When water solidifies to ice its volume increases keeping the mass same and therefore the density decreases.
What is solidification process?
Atoms are transformed from a liquid, disordered state through the process of solidification into an ordered solid state. By adhering to the kinetic principles, the conversion rate for the solidification process can be attained.The unique structure of a water molecule is made up of one oxygen atom and two hydrogen atoms. The peculiar arrangement of these atoms gives water certain unusual features, including its high thermal conductivity, surface tension, adhesion, and cohesion.When water freezes, the molecules get organized into a crystalline structure and take on a certain shape. Since there are spaces between individual molecules in this less dense crystalline structure, water expands as the volume of the structure as a whole rises.Ice forms as water expands, and because volume is inversely proportional to density, ice is less dense than water. This is the reason why ice, which feels heavier in its solid state than in its liquid one, floats on water.
Thus when water changes to ice its volume increases and density decreases.
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when an ion channel opens in a sarcolemma, ions flow across the membrane, altering the potential. these cells are said to be . the pump mechanism that maintains the resting membrane potential is an example of . a cell membrane is when there is a higher concentration of cations on one side and a higher concentration of on the other. the difference in charge created by the ecf ions and the icf ions is called the . membrane potential is measured in
Ions are compelled to migrate passively in one direction by the potential gradient of the membrane potential.
What is the mechanism of membrane potential?
Positive ions are drawn to the negative side of the membrane, while negative ions are drawn to the positive side, creating a potential gradient known as membrane potential that compels ions to passively migrate in one way.
When an ion channel opens in a sarcolemma, ions flow across the membrane, altering the potential. these cells are said to be Electrically excitablethe pump mechanism that maintains the resting membrane potential is an example of Active transportWhen there are more cations on one side of the cell membrane and more anions on the other, the membrane is polarized. Typically, the outside of a neuron has a higher concentration of cations than the inner does, and vice versa.The difference in charge created by the ECF ions and the ICF ions is called the membrane potentialmembrane potential is measured in microvolts.Hence, membrane potential is a voltage or electrical charge across the plasma membrane
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Please help due tonight.
Answer:
Increasing the greenhouse effect. (Hope this is right)
Explanation:
Carbon dioxide is what we breath out and fills the air with heat. This heat builds up and in turn... changes to a increase in the greenhouse effect. The greenhouse effect is known as a process of trapping in heat in the Earth's surface.
which stage of urine production involves returning water, nutrients, and electrolytes to the blood stream?
Reabsorption is urine production that involves returning water, nutrients, and electrolytes to the bloodstream.
In the field of science, the process though which water, electrolytes, salts and nutrients are reabsorbed back into the plasma from the glomerulus is referred to as reabsorption.
The urine formed has essential electrolytes and nutrients that are required by the body of an individual. Hence, in the glomerular filtrate, these materials are reabsorbed back into the blood by the process of diffusion.
The urine left after reabsorption is sent to the bladder where it can be stored for some time before releasing it out of the body.
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Clams burrow into the mudflats using their muscular foot. The length to which they burrow depends on what?
The length to which the clams burrow depends on the presence of soft sediments to use their muscular foot.
What is the muscular foot of clams?Clams are a group of aquatic mollusk invertebrates that exhibit a muscular foot (i.e., a muscular hatchet-shaped foot) that can be used for burrowing and also for movement purposes, i.e., for locomotion.
Bivalve mollusks not only include clams but also oysters and scallops, which are characterized to have a mantle holding a cavity for breathing purposes and also for excretion.
Therefore, with this data, we can see that clams are mollusk bivalves that have a muscular foot which they use for burrowing and also for locomotion, and the burrow they can make will depend on the presence of soft sediments in the place in order to reach the deeper layers of the soil.
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imagine a set of twins who are identical but do not look exactly identical (some traits differ). the study of how factors other than dna have influenced their occurrence of specific traits is known as
Epigenetics is the study of how things other than DNA have affected how often certain traits occur.
The terms "genetics" and "epigenetics" mean?The study of heredity and the diversity in inherited traits is known as genetics. Epigenetics: Epigenetics is the study of inheritable alterations in organisms brought on by altered gene expression.
What exactly does the term "epigenetics" mean?The study of epigenetics focuses on how DNA-unchanged cells regulate gene activity. The word "epigenetic" refers to factors other than the genetic code. In Greek, "epi-" means on or above. Gene activation is regulated by changes to DNA's epigenetic state, which can occur during development.
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how do sound waves ultimately result in the production of receptor potentials? group of answer choices the tectorial membrane squeezes the auditory nerve the basilar membrane releases neurotransmitters the eardrum has receptors that create action potentials hair cells in the cochlea vibrate, causing ion channels to open in their membrane
Hair cells in the cochlea vibrate, causing ion channels to open in their membrane
The hair cells in the organ of Cochlea convert the vibrations of mechanical sound into nerve impulse. The vibration of the basilar membrane, on which the organ of Corti is resting, stimulates them. The endocochlear potential, which exists between the endolymph and perilymph, is one of the most significant aspects of this process of conversion of sound into an electrical impulse by hair cells.
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after nervous stimulation stops, what prevents ach in the synaptic cleft from continuing to stimulate contraction? question 28 options: acetylcholinesterase destroying the ach the action potential stops going down the overloaded t tubules calcium ions returning to the terminal cisternae the tropomyosin blocking the myosin once full contraction is achieved
After nervous stimulation stops, following prevents Ach in the synaptic cleft from continuing to stimulate contraction : a)acetylcholinesterase destroying the ach.
What is acetylcholinesterase?Acetylcholinesterase is an enzyme which will degrade acetylcholine and prevent constant stimulation of the receptors on the target cell.
The key role of AChE is to terminate neuronal transmission and signaling between the synapses to prevent ACh dispersal and activation of the nearby receptors. AChE is inhibited by organophosphates and is also an important component of pesticides and nerve agents.
Acetylcholinesterase is present in the synapse between nerve cells and muscle cells. It springs into action soon after a signal is passed, breaking down the acetylcholine into its two component parts, acetic acid and choline.
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two martians fall in love and marry. one martian is homozygous for red eyes and the other is heterozygous. the recessive eye color is purple. what is the probability that they will have a child with purple eyes (assuming martians have similar genetics to humans)?
In terms of red eyes, one Martians is homozygous while the other is heterozygous. Purple eyes are recessive in color. Because it will be 50% homozygous (AA) and 50% heterozygous, there is 0% chance.
To have purple recessive eyes, we must have at least one recessive pair (aa).AA × Aa , there will be no progeny which shows aa genotype Each gene has two alleles that an individual inherits from each parent.
When a characteristic is recessive, both of the (recessive) alleles of the gene that causes the trait must be present for the trait to manifest. When just one copy is present, a recessive allele does not create a characteristic at all.
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Which type of rock made from heat and pressure is primarily classified by texture and composition?
Responses:
A)sedimentary
B)igneous
C)organic
D)metamorphic
Answer: Metamorphic
Explanation:
Answer:
metamorphic
Explanation:
it was correct on test
Alicia conducted an experiment to find out which insulating material holds in the most heat. She did multiple trials of each test and recorded observations of each trial.
Why did Alicia most likely do more than one trial? Check all that apply.
to increase the reliability of her data
to provide a better understanding of the concepts she investigated
to prevent other people from using the data incorrectly
to help in arriving at a conclusion even with inaccurate data
to reduce the likelihood of errors in the experiment
To lessen the chance that the experiment may make mistakes in the insulating material experiment.
Although more costly, aerogel is unquestionably the greatest insulating material. Fiberglass is inexpensive but needs to be handled carefullyin the experiment. Although useful, mineral wool is not fire resistant material. Efficacious, eco-friendly, and fire-resistant cellulose is difficult to apply. Wool, especially Icelandic wool, is warmer than polyester and cotton according to science. The greatest sportswear for keeping warm when training in the cold is spandex, followed closely by gore-tex. The best fabric for keeping you warm is a wool-acrylic combination, followed by cotton-acrylic. Due to the experiment may make mistakes great thermal resistance as one of the insulation materials, urethane foam is frequently used in home building. It can be produced as a spraying or in other forms.
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In many animals, glucose rather than starch, is transported by the blood through the body to all the cells. Starches in many foods are digested to yield glucose. Based on what you learned in this laboratory activity, explain why the digestion of starch to glucose is necessary.
Answer:
So, to answer your question, digestion of starch to glucose is necessary because enzymes and transport molecules require small, regular molecules to manipulate, and because glucose serves as the basis for most carbohydrate metabolism.
Explanation:
hope it hepls;)
at low intensities (below 25%) what muscle fibers are primarily used/activated to support activity? select one: a. type i b. type i and type iia c. type ii
The correct answer is option B.
At low intensities (below 25%) type I and type II muscle fibers are primarily used/activated to support activity.
What are muscle fibers?
Muscle fibers are type of fibers which regulate the physical forces & activities inside the body.
The chemical composition of muscle fiber shows that they are made up of particular group of muscles - called fascicles which are protected by a layer of connective tissues.
In general, there are three types of muscles fibers: (1) slow oxidative (2)fast oxidative and (3) fast glycolytic.
Overtime, the size and composition of muscle fibers changes in order to meet the changing demands of the body.
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why are humans less genetically variable than other organisms despite the fact that we range all over the world?
The human species has experienced a quick increase in size which leads to less genetic variability in humans as compared to another organism.
Native populations' genetic variety declines when they migrate further away from Africa, and bottlenecks during migration, which are situations where population size is momentarily reduced, are assumed to be the cause of this.
Evolutionary geneticists have now demonstrated that during two severe bottlenecks that occurred between 60,000 and 50,000 years ago as modern humans left Africa, a significant portion of our ancestors' genetic variation was lost.
The presence of more than two homologous chromosomes, polyploidy, population migration, homologous recombination or crossing over during meiosis, and mutations are a few potential causes of genetic variability in the population.
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Farmers across many centuries have used selective breeding (artificial selection) to enhance certain qualities in their crops. Which of the following qualities would most likely be selected for in breeding?
a. decreased nutrient composition
b. resistance to harmful pests
c. decreased harvest production
d. bioluminescence for attraction to fireflies
Farmers across many centuries have used selective breeding (artificial selection) to enhance certain qualities in their crops. Qualities such as resistance to harmful pests would most likely be selected for breeding. The correct answer to the question is option B.
What is selective breeding?
Selective breeding is of two types, inbreeding, and hybridization. Generally, selective breeding as the name implies involves selecting parents of a specific characteristic such as appearance, color, shape, fast maturity, increased yields, and so on, to breed together and produce offspring with unique characteristics.
From the question, selective breeding would make farmers want to increase their crop's resistance to harmful pests.
In summary, with the massive loss of crops due to pest attacks, farmers have continually found ways to curb this loss by producing offspring with high resistance to pests. With selective breeding, farmers will produce crops with high resistance to pests and this will save costs and reduce the use of pesticides.
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The equalizing temperature changes in response to changes in external forces of the boundary conditions of climate. What is this about?.
Climate sensitivity is about equalizing temperature changes in response to changes in external forces of the boundary conditions of climate.
The increase in global temperature that results from doubling the amount of carbon dioxide in the atmosphere above pre-industrial levels is commonly used to describe climate sensitivity. When doubling, carbon dioxide would be at about 520 parts per million (ppm), up from about 260 ppm before the industrial era. When compared to levels in the atmosphere prior to humanity beginning to burn copious amounts of fossil fuels in the 1800s, carbon dioxide and other greenhouse gases are multiplied by two to define climate sensitivity.
Climate sensitivity can be assessed using observed ocean heat absorption, observed temperature rise, and modeled or real-world radiative forcing. To determine climate sensitivity, the data are connected using a straightforward energy balance model.
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a triplet base sequence on the template strand of dna reads att. what will be the corresponding mrna codon, trna anticodon, and amino acid coded for by this dna?