Answer: :Total distance to be travelled = 4.4 km
= 4400 m
Diameter of wheel = 70 cm = 0.7 m
Radius of wheel= 0.7 / 2 m
Circumference of wheel = 2 * pi *r
= 2* 22*0.7 / 7* 2
= 22*0.1
= 2.2 m
No. Of revolutions = Total distance / Circumference of wheel
= 4400 / 2.2
= 2000
Explanation:
a bone has high concentration of calcium yet wants to absorb even more calcium in order to become more dense stronger. the movement of more calcium requires energy and would be done by
Answer:
a process called active transport. this process requires calcium channels to open and close in order to allow calcium ions to move into the bone. this process is powered by adenosine triphosphate (ATP) which is a molecule that stores energy.
WILL MARK BRAINLYIST
1 = Decomposition
2 = Combustion
3 = Double-replacement
4 = Synthesis
5 = Single-replacement
I tried my best, I hope it's right!
Describe the path of an oocyte from ovary to fertilization please!
An oocyte is also known as egg cell which is a female gamete, it is produced by the ovaries and travels through the female reproductive tract and fuse with the sperm to form zygote.
What is fertilization?Fertilization can be defined as the fusion of a haploid male gamete i.e., spermatozoa or sperm and a haploid female gamete i.e., ovum to form a diploid cell (2n), the zygote inside the body of the female in case of mammals. The fertilization is internal in the case of humans and usually after nine months the fully matured baby is born.
The path of the haploid (n) oocyte or egg cell from the ovary to fertilization include first, the oocyte leaves the ovary as an unfertilized egg during the period of ovulation. From here, the oocyte enters uterine tube (fallopian tube) and begins to move down towards the uterus, through the help of cilia which are present along the walls of the fallopian tube. If fertilization is taking place, it usually happens within the next 24 hours or else the oocyte degenerate.
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an ordered sequence of events (including interphase and the mitotic phase) that extends from the time a eukaryotic cell is first formed from a dividing parent cell until its own division into two cells.
Cell cycle is an ordered sequence of events (including interphase and the mitotic phase) that extends from the time a eukaryotic cell is first formed from a dividing parent cell until its own division into two cells.
A cell cycle is the sequence of events that occur in a cell as it develops and divides. A cell spends the majority of its time in what is known as interphase, where it expands, reproduces its chromosomes, and arranges for cell division. The cell then exits interphase, goes through mitosis, and divides completely.
The cell cycle could be considered as a cell's life cycle. In other words, it is the sequence of growth and development steps that a cell goes through between "birth"—formation by the division of a mother cell—and reproduction—division to produce two new daughter cells.
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You are a researcher on a behavior genetics study studying identical and fraternal twins; based on what has been discussed in lectures, you would propose that the environment was responsible for a given behavior when you find which of the following patterns of correlations?Select one:a. .70 for identical twins; .35 for fraternal twins.b. .35 for identical twins; .70 for fraternal twins.c. .35 for both identical and fraternal twinsd. one cannot determine environmental effects in a behavior genetics study, only genetic effects
Environment was responsible for a given behavior when you find 0.35 for both identical and fraternal twins patterns of correlations.
Fraternal twins account for two-thirds of all twins worldwide. Around the world, the rate is about 3 in 1,000. Only one-third of the world's twins are identical.
One fertilized egg (ovum) splits and evolves into two babies with identical genetic information to form identical or monozygotic twins. Two eggs (ova) are fertilized by two sperm to produce two genetically distinct children known as fraternal or dizygotic twins.
Same-sex fraternal twins can have strikingly similar appearances. Fraternal twins, like all siblings, are the result of two individually fertilized eggs from the same mother and father. They are genetically identical to non-twin siblings.
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In the readings, a claim is made that ice cooling is a good way to cool large buildings. Create an argument to support this claim. Give reasons and evidence from the texts. Also tell what you may already know about air conditioning and temperature control.
An argument to support the claim that ice cooling is a good way to cool large buildings is that it is a more efficient and cost-effective method than traditional air conditioning. Ice cooling works by storing energy in the form of ice during off-peak hours, and then using the stored energy to cool the building during peak hours. This reduces the amount of energy needed to cool the building, resulting in lower energy costs. Additionally, ice cooling systems are more efficient than traditional air conditioning systems, as they are able to maintain a more consistent temperature throughout the building.
I also know that traditional air conditioning systems are not as efficient as ice cooling systems, as they require more energy to cool the building. Additionally, traditional air conditioning systems are not as effective at maintaining a consistent temperature throughout the building, as they are more prone to fluctuations in temperature. This can lead to uncomfortable temperatures in certain areas of the building.
Label the part of mitosis to the action that occurs during that phase.
15. I
16. G
17. C
18. A
19. H
20. F
21. J
22. B
23. D
24. E
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6. A high school student conducted an experiment. The student grew two organisms alone in a petri
dish. In graph "a" species 1 is shown growing alone, and in graph "b" species 2 is shown growing alone.
The student then grew the two organisms together in a new dish. Graph "c" shows the numbers of
Species 1 and 2 over time.
Explain what is happening in graph "c." Justify your answer with a scientific term & evidence from the
graphs.
In graph C, species 1 and species 2 are both in competition for resources.
What is competition in living organisms?Competition in living organisms is the process by which two or more living organisms compete for a limited resource such as food, water, space, and mates.
Two organisms are involved in a competition when they occupy the same trophic level in a food chain.
The experiment by the student shows two orgasms that use the same nutrient.
Species 1 and Species 2 both require the same nutrients for growth, hence, they compete for the same resources. When they are grown in the same medium, Species 1 grows more than species 2.
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Lab Topic: Relative and Absolute Dating
Section I: Overview of Lab
1. What is the purpose of the lab?
Answer:
I: Relative dating techniques determine if an object is more recent or more antiquated than other items discovered nearby. Absolute dating techniques offer more precise origin dates and historical periods, including a range in age expressed in years.
1.Relative dating does not provide precise dates; rather, it merely shows which item, fossil, or stratigraphic stratum is older. Absolute dating techniques offer more precise origin dates and historical periods, including a range in age expressed in years.
Explanation:
What is the difference between the two?
A rock layer's relative age is how old it is in relation to other layers of rock (or the fossils it contains). By observing the location of the rock strata, it can be discovered. The numerical age of a layer of rocks or fossils is its absolute age.
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Absolute dating and relative dating are the two types of dating techniques employed by archaeologists.
It is beneficial to present a tale that has all the major events occurring in the correct order. To understand the order is referred to as stratigraphy (layers of rock are called strata). The exact numerical ages of the rocks cannot be determined using relative dating. This link may be used by archaeologists to conclude that artefacts found deep down are older than those found close to the surface. Absolute dating is a technique used by archaeologists to pinpoint an object's exact age. Using measurements of an object's physical features, absolute dating procedures use the information to calculate the object's age.
The goal of the lab is to teach participants how to learn by examining reality rather than by attempting to manipulate reality to fit preconceived notions. Learning to be alert, paying attention to what happens, and handling this knowledge with the utmost honesty are crucial.
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Create a Punnett square showing a cross between the two F1 parent plants. Their offspring are the F2 generation.
When the two heterozygous parents for tallness are crossed, the F2 generation has three tall and one short plant, with a genotype ratio of 1:2:1 for the TT, Tt, and tt.
What is the Punnett square's significance?The punnett-square significance is that it explains the genotyping of the offspring of the parents, and here there are two parents for the tallness, whereas the tall is dominant over the short, and here there are two types of gametes produced, with three tall and one short, with the punnett-square explained below.
Hence, when the two heterozygous parents for tallness are crossed, the F2 generation has three tall and one short plant, with a genotype ratio of 1:2:1 for the TT, Tt, and tt.
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Genotype 'AS' is favored over genotypes SS and AA. Given the following observed/ expected numbers, calculate the relative fitness of the 'SS genotype. 'SS' Obs = 4, Exp = 17, 'AS' Obs=166, Exp =127 'AA' Obs = 1030, Exp = 1056 I I
Genotype 'AS' is favored over genotypes SS and AA because it is more fit. Fitness is a measure of how well a genotype can survive and reproduce in the environment it inhabits.
The relative fitness of a genotype is the ratio of its observed to expected numbers. In this example, the observed and expected numbers for genotype 'SS' are 4 and 17 respectively. Therefore, the relative fitness of 'SS' is 4/17 = 0.235.
This means that the genotype 'AS' is more fit than genotype 'SS' because its relative fitness (166/127 = 1.309) is higher. The relative fitness of genotype 'AA' is 1030/1056 = 0.977, which is lower than that of genotype 'AS'. This indicates that genotype 'AS' is more fit than both genotypes 'SS' and 'AA'.
Overall, the genotype 'AS' is favored over genotypes 'SS' and 'AA' because it is more fit. This is evidenced by the relative fitness of each genotype, which shows that genotype 'AS' has a higher fitness than both 'SS' and 'AA'.
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The judge eyed the lawyer as she argued her case. This judge happened to have a scale on his bench, like the kind that balances. The lawyer closed her case and the judge was silent. His eyes burned into the suspect. He had one hand on his jawline, another on the scales. The court waited for his decision.
What is the symbol?_________.
What does the symbol represent?________________________.
Is a symbol of Scales of justice and it represent the objective and fair weighing of two sides in a legal dispute.
What does the symbol stand for in courtThe scales of justice stand for the balance between truth and fairness in court system, the scales are held by a lady called the of Lady Justice, or Justitia in Latin that symbolizes the Roman goddess of justice. The symbol stand to remind people that they will get justice and also remind judges, attorneys and juries of their duty to serve justice in dispute and criminal cases . The symbol of justices is also used to present the balance between the support and opposition a case has and is used for weighing the two thereby reaching for fairness and just verdict.
With evidence and argument presented in court, the judge or jury have the duty to determine which side is heavier to pass judgment which the judge is about to do in the above question.
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.
Which of the following terms best describes groups of organisms that cannot easily be distinguished morphologically but show no gene flow between them, and are evolutionarily independent units? O Peripatric species O Incipient species O Cryptic species O Allopatric species
The terms that best describe groups of organisms that cannot easily be distinguished morphologically but show no gene flow between them and are evolutionarily independent are cryptic species, which are present in the third option.
What is a cryptic species?A "cryptic species" is a species that is difficult to distinguish from other species because of their similarity, and this can happen for a variety of reasons, such as physical characteristics that overlap with those of other species and are found in different organisms, including plants, animals, etc, an example is the pine marten, which is native to Europe and Asia and there are two distinct species of pine marten, the European pine marten and the Asian pine marten, which are difficult to distinguish from one another due to their physical similarities.
Hence, the terms that best describe groups of organisms that cannot easily be distinguished morphologically but show no gene flow between them and are evolutionarily independent are cryptic species, which are present in the third option.
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which of the following ventricles is found under the corpus callosum? view available hint(s)for part a which of the following ventricles is found under the corpus callosum? fornix lateral ventricles third ventricle fourth ventricle
Lateral ventricles are divided by the septum pellucidum within the cerebrum are cavities known as the lateral ventricles.
What is the function of septum pellucidum?The septum pellucidum divides the right and left lateral ventricles midway. The cerebrospinal fluid (CSF), which cushions the brain, fills the spaces that make up the ventricular system of the brain.Each cerebral hemisphere contains a C-shaped hollow known as the lateral ventricle.
Ependyma lines the inside, which is filled with CSF. It has a 7 to 10 ml capacity. The septum pellucidum, a thin vertical sheet of nervous tissue that divides the two lateral ventricles, is surrounded by ependyma on both sides.
Therefore, Lateral ventricles are divided by the septum pellucidum within the cerebrum are cavities known as the lateral ventricles.
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Which of the following activities would be associated with the parasympathetic division of the autonomic nervous system? a. resting and digesting b. release of both acetylcholine and epinephrine c. increased heart rate d. "fight-or-flight" response e. release of epinephrine only
The activation of the parasympathetic branch of the autonomic nervous system is associated with resting and digesting.
What is the parasympathetic nervous system ?One of the two functionally separate and perpetually active divisions of the autonomic nervous system is the parasympathetic nervous system (PNS). It opposes the sympathetic nervous system, which is the other (SNS).
In calm "rest and digest" situations, the parasympathetic nervous system predominates, whereas the sympathetic nervous system activates the "fight or flight" response in stressful circumstances.
Therefore, The activation of the parasympathetic branch of the autonomic nervous system is associated with resting and digesting.
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label the trna and mrna with the appropriate terms. also, determine the correct sequence of bases for trna and the correct amino acid for the trna (refer to the genetic code to determine the amino acid that is coded). there are six targets total. you will not use all of the terms
Labeling trna and mrna with appropriate terms is important for understanding how genetic information is encoded and translated. The correct sequence of bases for trna and the correct amino acid for trna must be determined in order to accurately carry out the translation process.
Trna is a type of RNA (ribonucleic acid) molecule that is responsible for transferring amino acids to the ribosome during translation. It has a specific sequence of three bases, known as the anticodon, that pairs with the corresponding codon on the mrna. The trna also carries an amino acid that is specific to the codon on the mrna.
Mrna is another type of RNA molecule that carries genetic information in the form of codons. Each codon is a sequence of three bases that codes for a specific amino acid. When the trna carrying the corresponding anticodon pairs with the codon on the mrna, the trna is able to bring the amino acid and pair it with the codon on the mrna.
To determine the correct sequence of bases for trna and the correct amino acid for the trna, the genetic code must be consulted. For example, if the codon on the mrna is AUG, the corresponding trna sequence would be UAC and the corresponding amino acid would be methionine.
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Determine which energy use evaluation technique is being described and drag the explanation label to its appropriate classification category. You are placed in a small room and the amount of body heat you release raises the temperature of a layer of water that surrounds the room by measuring the water temperature, scientists can determine how much energy is expended Your height weight, age, gender, and physical activity estimate are used to estimate energy needs. You are hooked up to a cart that measures the amount of oxygen you consume; Instruments on the cart convert oxygen use to energy use, determining estimated caloric use. Direct calorimetry Indirect calorimetry Estimated energy requirement calculation < Prev 69 of 120 !!! Next → G S 9W MacBook Pro 90 FU F4 F5 590 A $ 4 % 5 00 * Il + 3 6 7 9 0 E R T Y o P
Calorimetry is the practice of tracking changes in a body's state variables in order to predict, within certain limits, the heat transfer resulting from those changes, such as those brought on by chemical reactions, physical alterations, or phase transitions. Calorimetry is done with a calorimeter. Joseph Black, a Scottish physician and scientist who was the first to distinguish between heat and temperature, is credited with developing the science of calorimetry.
A reference material for calorimetry must have specified thermal constitutive properties that are known and measured. The temperature and volume of a calorimetric substance are the only variables that may completely and quickly identify the pressure it creates, according to the traditional rule, which Clausius and Kelvin acknowledged. The melting of ice is an example of a transition that does not involve a phase change that is covered by this rule. This standard is deviated from by many materials, and the current classical calorimetry formula is insufficient to account for these variations. It is anticipated that the normal rule will be followed by the calorimetric material in this instance.
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The evidence related to the Big Bang theory best supports which one of the following ideas?
The universe is cooling to the point where it will start to contract.
The elements formed by the Big Bang exist in the smaller ratios today.
The universe is warming very rapidly.
Radiation from the Big Bang is distributed evenly in the universe.
The evidence that related to the Big bang theory best supports the universe is warming very rapidly and the radiations from the Big bang is distributed evenly in the universe. Thus, the correct options are 3 and 4.
What is the Big bang theory?
The Big Bang theory is an explanation that supports the early development of the Universe. According to the big bang theory, the Universe expanded from an extremely small, extremely hot, and dense state that does not support life. Since the universe has expanded and become less dense and cooler and gradually the conditions on the planet become favorable.
Some of the key observations that supports the big bang theory include expansion of the universe, cosmic microwave radiations, and the abundance of the lightest chemical elements.
Therefore, the correct options are 3 and 4.
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1. Cellular respiration is a series of chemical reactions that convert the energy in food molecules into energy stored in the molecule _________. Aerobic respiration requires the presence of Oxygen___________ and releases water and _________________ as waste products.
Answer:
1. H2O
2. H
3. 2 molecules of oxygen.
How is energy causing motion or creating a change in water
Answer:
basically work requires energy so we can say energy is directly proportional to work SO FORMULA OF WORK IS = Force × distance so energy = work
Explanation:
sorry if that doesnt make sense
Visit the link below and use the information to
answer the following question.
Why Is Biodiversity Important? Who Cares?
Name three ecosystem services provided by
biodiversity.
Biodiversity provides ecosystem services such as regulation of ecosystem processes, provision of resources, and cultural and aesthetic value.
What is biodiversity?
Biodiversity, or the variety of species and ecosystems present in an area, is important for a number of reasons. Here are three ecosystem services provided by biodiversity:
Regulation of ecosystem processes: Biodiversity helps to regulate the processes that sustain life, such as the water cycle, nutrient cycling, and pest control. For example, a diverse array of predators helps to keep prey populations in check, while a variety of plants and microbes help to recycle nutrients and maintain soil health.
Provision of resources: Biodiversity provides us with a wide range of resources, including food, medicine, timber, and fuel. Many of the crops that we rely on for food, such as rice, wheat, and corn, are pollinated by bees and other insects, which are essential components of biodiversity.
Cultural and aesthetic value: Biodiversity is also important for cultural and aesthetic reasons. Many people derive enjoyment and inspiration from observing and interacting with the natural world, and the loss of biodiversity can diminish these experiences.
Given the numerous benefits that biodiversity provides, it is important to protect and conserve it. Biodiversity is vital for maintaining the health and functioning of ecosystems, which in turn supports the well-being of humans and other species.
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A researcher designs an experiment to investigate whether soil bacteria trigger the synthesis of defense enzymes in plant roots. The design of the experiment is presented in Table 1. For each group in the experiment the researcher will determine the average rate of change in the amount of defense enzymes in the roots of the seedlings Table 1. An experiment to investigate the effect of soll bacteria on plant defenses Group Number of Seedings Type of Soil Treatment Solution 1 10 Sterlepotting sol Contains actively reproducing soll bacteria 2 10 Sterile potting sol Contains heille soll bacteria 3 10 Sterle porting soil Contains no bacteria Which of the following statements best helps justify the inclusion of group 2 as one of the controls in the experiment? A) I will show whether the changes observed in group 1 depend on the metabolic activity of Boll bacteria B) will show whether the changes observed in group 1 depend on the type of plants used in the experiment. C) It will show the average growth rate of seedings that are maintained in a nonsterile environment D) I will show the changes that occur in the roots of seedlings following an infection by soll bacteria.
Among the given statements (A) "I will show whether the changes observed in group 1 depend on the metabolic activity of Boll bacteria" best helps justify the inclusion of group 2 as one of the controls in the experiment.
In this instance, soil bacteria that were destroyed by heat are being employed to ascertain if the creation of enzymes by the plant is aided by the bacteria's metabolic products or just their physical form. Because the outcomes of these types of tests occasionally depend on the metabolic interactions between the pathogen (bacteria) and the host, this is a very helpful control (the plant). So, (A) is the right option.
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the red line shows the growth predicted by the logistic model, and the black dots show the measured growth of the population. does the measured growth match the predicted growth pattern? mastering
No, the measured growth does not match the predicted growth pattern by the logistic model It is lower than the predicted values in some parts and higher in other parts.
In population logistic models, logistic growth contributes to the gradual increase of population at first and then increases as the population grows.
The per capita growth rate of a population decreases as size of the population reaches an optimum imposition by restricted resources available in the environment, identified as the carrying capacity ( K). A J-shaped curve is produced by exponential growth, whereas an S-shaped curve is produced by logistic growth model.
Because of the effect of carrying capacity, the logistic growth model is more precise than other models in predicting population growth. The concept of carrying capacity refers to the idea that assets are always confined since the environment can only sustain a certain amount of people in a population.
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2. Describe a specific marine relationship among marine organisms. Predict what
would happen in the marine ecosystem if this relationship no longer existed.
Marine ecosystems are aquatic environments with high levels of dissolved salt, such as those found in or near the ocean.
What are most marine organisms?
Plankton are the most common. Plankton make up one of three major groups of marine life. The other two groups are nekton and benthos (Figure below). Living things in the oceans are placed in these three groups.
What are marine organisms called?
The animals inhabiting the sea are called marine organisms. Marine organisms may be classified as Nektonic, Planktonic, or Benthic. The distribution of marine organisms depends on the chemical and physical properties of seawater, ocean currents & penetration of light.
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What is the power house of cell?
Answer:
Mitochondria
Explanation:
Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.
What is the power house of cell?
Answer:
mitochondria
Explanation:
The power house of a cell is the mitochondria. The mitochondria are organelles found within the cytoplasm of eukaryotic cells that are responsible for generating the majority of the cell's energy in the form of ATP (adenosine triphosphate). ATP is the primary energy currency of cells, and it is used to power a wide variety of cellular processes, including the synthesis of proteins, the transport of molecules across cell membranes, and the contraction of muscles.
Which of the following statements about erythropoietin
is true?
a. It facilitates the proliferation and differentiation of the erythrocyte lineage.
b. It is a hormone produced by the thyroid gland.
c. It is a hemopoietic growth factor that prompts lymphoid stem cells to leave the bone marrow.
d. Both a and b are true.
It facilitates the proliferation and differentiation of the erythrocyte lineage.
What is Erythrocyte lineage?
Erythrocyte lineage refers to the process of erythrocyte (red blood cell) production, maturation, and destruction. It begins with stem cells in the bone marrow, which differentiate into the cells that form the red blood cells. These cells then mature and are eventually released into the bloodstream, where they circulate for about 120 days before being destroyed.
What is Erythropoietin?
Erythropoietin (EPO) is a hormone produced by the kidneys that stimulates the production of red blood cells in the bone marrow. It is primarily used to treat anemia caused by chronic kidney disease, cancer, and HIV/AIDS, as well as to boost the performance of athletes.
Hence, Option A is correct.
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What is the bushy head of a tree called
Answer:
Tree Crown
Explanation:
The tree's Crown is the upper part of the tree that contains the lateral branches above the tree trunk.
in the cochlea, specialized cells called hair cells convert the vibrations into electrical signals. these signals are then sent through the auditory nerve to the brainstem, where they are further processed and sent to the auditory cortex in the brain. in the auditory cortex, the signals are interpreted as sound. the brain can identify the pitch, volume, and timbre of the sound, as well as locate the source of the sound and identify specific sounds within a mixture of sounds (such as a person speaking in a noisy room).
The fluid in the cochlea moves in response to vibrations from the oval window. 25,000 nerve endings are set in action when the fluid travels.
These nerve terminals convert vibrations into electrical impulses, which travel to the brain via the eighth cranial nerve (auditory nerve). It is made up of little hair cells that border the cochlea. These cells convert vibrations into electrical impulses, which sensory nerves carry to the brain.
Mechanical vibrations are transmitted. Hair cells of the Corti organ convert mechanical sound waves into nerve signals. When the basilar membrane, on which the organ of Corti lies, vibrates, they are activated.
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Which of the following substances are produced by the body cells to protect uninfected cells from viral invasion ?
a. histamineb. complementc. natural killer celld. interferons
Interferons are produced by the body cells to protect uninfected cells from viral invasion. So, the correct option is (D).
What are Interferons?Interferons (IFNs) are defined as a group of signaling proteins which are released by host cells in response to the presence of many viruses. A virus-infected cell releases interferons that cause nearby cells to mount their anti-viral defenses.
These are a group of proteins called cytokines which are produced by white blood cells, fibroblasts, or T-cells as part of the immune response to viral infection or other immune triggers. The proteins' name comes from their ability to interfere with the production of new virus particles.
These substances are produced by the body cells to protect uninfected cells from viral invasion.
Thus, Interferons are produced by the body cells to protect uninfected cells from viral invasion. So, the correct option is (D).
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