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Why have scientists used genetic modification on fruits and vegetables?

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Why have scientists used genetic modification on fruits and vegetables?

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Unlike the methods of early scientists, how did Sir Francis Bacon believe basic laws of science should be determined?

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Unlike the methods of early scientists, how did Sir Francis Bacon believe basic laws of science should be determined?

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Name the scientists who shared the Nobel Prize in Physics in 1903 and describe their contributions that were recognized by the award.

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Answered by answersmine AT 22/10/2019 – 03:31 AM

The nobel prize in 1903 was given and awarded to Antoine Henri Becquerel, and Pierre Curie, Marie Curie, nee Sklodowska. 
Reasons for the given awards; 
Antoine Henri Becquerel because; “In recognition of the extraordinary services he has rendered by his discovery of spontaneous radioactivity.” 
And the others (Pierre Curie and Marie Curie, nee Sklodowska) because; “In recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena, discovered by Professor Henri Becquerel.”     

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How are scientists using technology to help bring awareness of about infectious Illnesses?

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How are scientists using technology to help bring awareness of about infectious Illnesses?

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Why would scientists and businesses be interested in a periodic motion

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Periodic motion, in physics, motion repeated in equal intervals of time. Periodic motion is performed, for example, by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave. In each case the interval of time for a repetition, or cycle, of the motion is called a period, while the number of periods per unit time is called the frequency. Thus, the period of the Earth’s orbit is one year, and its frequency is one orbit per year. A tuning fork might have a frequency of 1,000 cycles per second and a period of 1 millisecond (1 thousandth of a second).

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How did advancements in physics, chemistry, and astronomy help cause the Enlightenment? Enlightenment thinkers applied the scientific method to social problems. Enlightenment philosophers began their careers as natural scientists. Knowledge of physics and chemistry enabled advances in weaponry and machinery. The study of science inspired great Enlightenment poets to write about nature.

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The Enlightenment is known by that name because people considered the scientific progress brought a “new light” that could replace religion and leave the Middle Age behind. Also, different discoveries and studies in physics, chemistry, and astronomy established the scientific method as a reliable way to produce knowledge. Therefore, Enlightenment thinkers applied the scientific method to social problems, and since then, multiple social sciences like sociology or anthropology have adopted this method until the present day.

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What process do scientists use to think about and explore the natural world?

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What process do scientists use to think about and explore the natural world?

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Sharita does special typing jobs for scientists. She charges $16 for the first three pages and three dollars for each additional page of scientific typing.Sonia, a biologist paid 106 dollars to have a research paper typed. How many pages long was Sonia's paper.

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Sharita does special typing jobs for scientists. She charges $16 for the first three pages and three dollars for each additional page of scientific typing.Sonia, a biologist paid 106 dollars to have a research paper typed. How many pages long was Sonia’s paper.

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The evidence that scientists currently have suggests that life on earth __________.

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The right answer is Transgenic organisms can produce a desired product that may benefit other organisms.

A transgenic organism contains DNA combining  stably integrated in all its cells. In other words, the organism, be it a plant, an animal or a microorganism, has a new piece of DNA embedded in it. a chromosome in each of its cells. This “new piece” of DNA usually contains a gene from another organism (plant, animal or other) that has been modified to be expressed in the new  organization. A transgenic organism may even possess the DNA of another organism of the same species. The inserted gene can be called the transgene.

Currently, diabetics are treated by injecting insulin from either a healthy human donor or cultures of genetically modified (transgenic) bacteria that secrete the protein.

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What do scientists use to determine what the interior of a moon or planet is made of?

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What do scientists use to determine what the interior of a moon or planet is made of?

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If scientists knew the latitude of a location on earth's surface but not the longitude what could they determine about the location?

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If scientists knew the latitude of a location on earth’s surface but not the longitude what could they determine about the location?

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After scientists discovered electrons and protons, what led them to believe there was a third subatomic particle? A. Elements have molar masses that are numerically equal to their atomic mass. B. The mass of an atom’s nucleus is greater than the combined masses of an atom’s protons. C. The mass of an atom is greater than the combined masses of an atom’s protons and electrons. D. Elements have isotopes that have the same atomic number but different atomic mass numbers.

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The unknown of this problem is the experimental percent of water in the compound in order to remove the water of hydrogen, given the following:

Mass of crucible, cover and contents before heating                               23.54 g
Mass of empty crucible and cover                                                            18.82 g
Mass of crucible, cover, and contents after heating to constant mass     20.94 g

In order to get the answer, determine the following:

Mass of hydrated salt used                          = 23.54 g – 18.82 g = 4.72 g
Mass of dehydrated salt after heating          = 20.94 g – 18.82 g = 2.12 g
Mass of water liberated from salt                 = 4.72 g – 2.12 g = 2.60 g

Then solve the percent of water in the hydrated salt by:

% water = (mass of water / mass of hydrated salt) x 100
% water = 2.60 g / 4.72 g x 100
% water = 55.08 % in the compound 

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Scientists are able to use DNA to produce an identical copy of an organism's in this produreArtificial selection.Gene manipulationcloningGenetic engineering

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Scientists are able to use DNA to produce an identical copy of an organism’s in this produreArtificial selection.Gene manipulationcloningGenetic engineering

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Which line from the text shows why scientists continue to study yawning? One thing is certain: you are probably fighting the urge to yawn right about now. Other scientists believe, however, that yawning is a form of communication. One mystery that still remains unsolved is why we yawn—what makes us yawn and what purpose it serves. The theory is that yawning helps cool the brain, allowing it to work more efficiently.

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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Earth’s climate ________. select one: a. has been stable over the history of the planet b. is changing as a result of natural and human processes c. will stabilize over the next century, according to the predictions of most scientists d. has changed only once due to the evolution of green photosynthesizing plants e. history is undeterminable because there is no method of studying climatic history of the planet

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Natural Forces Affecting the Driver:

1. While the car stops, the person continues moving the way that the car were moving and then hits the obstacle in the car or the person can be thrown out of the vehicle. If the person wears belt, he will stop moving with the vehicle and won’t hit the obstacle.

2. We count approximate kinetic energy using the formula K = v^2. So the vehicle which is moving at 30 mph will have four times less kinetic energy than vehicle which is moving at 60 mph. If they have the same road conditions, the breaking distance will be four times as great for the car moving twice as fast.

3. Kinetic energy depends on object’s mass and velocity and it has direct relationship with the stopping distance. The lesser mass of the vehicle = the lesser kinetic energy and lesser stopping distance. => If both vehicles have the same velocity, then small vehicle has lesser kinetic energy than large vehicle.

4. We know that kinetic energy has this relationship with velocity K = v^2. So the best way to prepare to enter sharp curves in the roadway is to lower the speed. The most appropriate speed is 20-30 mph, but it depends on road conditions and car’s breaks condition.

5. Car crashes can happen with everyone so the best way is to be prepared. First the driver should wear a seatbelt while he’s driving. He should check his tires and breaks condition regularly. And also it’s important to slow down the vehicle while entering sharp curves. Without following these rules, the driver can get catastrophic injuries in a car crash.

Signs, Signals, and Pavement Markings: 

1. It doesn’t matter where you go. All you need is to learn highway code. It’s very different to know the meanings of every road sign. Also, it’s necessary to check your car’s conditions and you should take some spare parts for your car in case of accidents. So wherever you go, it’s important to be prepared.

2. You should stop before crossing and take few minutes to make sure there is no train approaching. If there is no train approaching, you can pass a railroad crossing. If you see approaching train, you should wait until it will pass a railroad crossing.

3. You should stop before the lights and wait to check the traffic movement and signs. Make sure that everything is safe and pass the intersection. Don’t move fast to avoid accidents.

4. Flashing yellow light means that it’s not necessary to stop but you should to pay attention on the traffic movement. So it would be better to yield before the lights and make sure if it’s safe to move. After that you can cross the intersection.

5. The line change means that the lane changes and you can’t cross solid lines. Pay more attention on road marking because it shows how you should behave on the road or highway.

6. As you approach the next exit and  your passengers need to use the restroom and get some food, you should look for green signs which indicate food and rest stops. You should to slow down if you don’t want to skip the sign.

7. When you take the exit ramp off the expressway and merge onto the next road, you see yellow lines dividing the roadway which indicates that there is oncoming traffic and this is a two-way highway. 

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Why is creativity considered a scientific attitude? A. Creativity helps scientists come up with different experiments. B. Creative scientists imagine the results of experiments without doing them. C. Scientists who are creative are better at handling and training animals. D. Scientists need creativity to make good posters to explain their ideas.

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There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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Well into the twentieth century, many scientists believed the ocean floor was

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Well which one tends to live around deep waters like the open ocean?

Frogs are amphibians, meaning they need land. The open ocean does not have land.

Dolphins live in and travel around the ocean, not needing land and capable of swimming great depths so they are capable of living in the open ocean.

Alligators live in areas with shallow waters where they can cool down and hide to capture unsuspecting prey. They need to breathe every now and then and even though they are fantastic swimmers in rivers, they can’t go too deep. They also need land to lay their eggs and mate, so the open ocean is not the best option for an alligator.

Hippopotami also live in shallow water like alligators. And like alligators, they need to breathe every now and then and they can’t go too deep in water. Rivers are great for them, but they won’t last too long in an open ocean.

Thus, the organism most likely adapted to the open ocean are dolphins.

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Why might scientists be interested in making transgenic organisms? Transgenic organisms glow in the dark and provide a light source in dark places. Transgenic organisms can produce a desired product that may benefit other organisms. Transgenic organisms can be used to cut strands of DNA molecules into fragments. Transgenic organisms can be used as a medium to transfer foreign DNA into a host cell

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Answer:

The integumentary system covers the surface of the body is true about the integumentry system.

Explanation:

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.

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QUESTION 4 A scientist who alters data to ensure a desired outcome is: Behaving unethically Displaying creativity Proving a hypothesis correct QUESTION 5 An ethical scientist exhibits which of the following characteristics? Bias Logic Honesty QUESTION 6 Scientists who work with human subjects have an ethical responsibility to ensure their subjects are not harmed. True False QUESTION 7 Scientists must report data honestly, regardless of personal bias. True False 2 points Save Answer QUESTION 8 A scientist only reports data that supports his hypothesis that a new medication has a positive outcome for certain patients. This is an example of which of the following? A hypothesis Bias Logic 3 points Save Answer QUESTION 9 Scientists may disregard data that conflicts with their personal preferences. True False

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The equation of the car is given by the equation,

                          x(t) = 2.31 + 4.90t² – 0.10t⁶

If we are going to differentiate the equation in terms of x, we get the value for velocity.

                  dx/dt = 9.8t – 0.6t⁵

Calculate for the value of t when dx/dt = 0.

                 dx/dt = 0 = (9.8 – 0.6t⁴)(t)

The values of t from the equation is approximately equal to 0 and 2. 

If we substitute these values to the equation for displacement,

(0)   , x = 2.31 + 4.90(0²) – 0.1(0⁶) = 2.31

(2)    , x = 2.31 + 4.90(2²) – 0.1(2⁶) = 15.51

Thus, the positions at the instants where velocity is zero are 2.31 and 15.51 meters. 

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Which of the following is an example of an emotional appeal? A. Many organizations have offered recommendations. B. It will have global impact in the near future. C. It will be the greatest environmental tragedy. D. More than 90 percent of the scientists agreed that it is probable.

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Answer:Leo Tolstoy wrote the novella The Death of Ivan Ilyich to criticize the emerging middle class of modern Russia in the nineteenth century. Ivan Ilyich, his family, and his friends are part of this budding middle class. Tolstoy’s aim in writing this novella was to criticize the thoughts and the approach of middle class people toward their families, their jobs, and society. He used the life of Ivan Ilyich to demonstrate all the aspects of the middle class that he believed were wrong. Tolstoy portrays Ivan Ilyich as a man whose life decisions are based on social acceptance. He chooses his friends and even his wife based on their social standing. When he starts to find his family life unpleasant because of his wife’s constant nagging, he limits his interactions with the whole family. Instead, he seeks comfort in his work. He assumes a formal relationship with his family members, particularly his wife. This change in his feelings and attitude toward his family does not seem strange to him. On the contrary, getting away from his family becomes his life goal:  

This aloofness might have grieved Ivan Ilyich had he considered that it ought not to exist, but he now regarded the position as normal, and even made it the goal at which he aimed in family life.

Tolstoy deplored the middle-class habit of maintaining distance with family members in private but keeping up appearances of closeness for the public. Tolstoy shows his character Ivan Ilyich making the effort to maintain this detachment from his family members while ensuring that his family appears on the outside to be a regular and happy family. Even when he has to be at home with his family, he makes sure that they have guests. That way, he can avoid confrontations or meaningful discussions with his family:

His aim was to free himself more and more from those unpleasantnesses and to give them a semblance of harmlessness and propriety. He attained this by spending less and less time with his family, and when obliged to be at home he tried to safeguard his position by the presence of outsiders.

Ilyich’s work soon becomes an obsession, and everything else, including his family is secondary to his job:

The chief thing however was that he had his official duties. The whole interest of his life now centered in the official world and that interest absorbed him.

Through Ivan Ilyich, Tolstoy portrayed a class of people who make determined efforts to escape human contact and suffering by seemingly living in denial. They are people who run away from love and relationships, and they are unwilling to reflect on their lives. Instead, they choose to exist in their self-centered world until they are jolted into reality. In Ivan Ilyich’s case, this jolt comes in the form of his illness in chapter 4.  

Tolstoy would not have agreed with Ivan Ilyich’s priorities. Unlike Ivan, Tolstoy looked inward throughout his adult life. He searched for a deeper meaning and purpose, especially in regard to his political and religious ideals. While those ideals eventually caused Tolstoy to avoid his wife, he generally had a close relationship with his family. By all accounts, he seemed very much a man who loved and cherished his wife and their 10 children. While Tolstoy was dedicated to his writing, his family seemed to inspire him, rather than get in the way of his literary genius. His wife was involved in his work, having transcribed most of his writing. Even Tolstoy’s last days were spent on a pilgrimage that he embarked on with his youngest daughter.

Explanation:

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Which of the following options is a factor that scientists consider when predicting the occurrence of an earthquake? Select all that apply. -amount of precipitation -foreshocks -thunderstorms -patterns of electrical currents in the ground

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The answer is A. Electrical system specialists

Electrical system specialist

A person who handles repairs on alternators, starters,

and electrical wiring, and works on electrical accessories such as seat controls, door

locks, window controls, and sound systems.

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Explain the method scientists use to study how Earth’s atmosphere and climate have changed during the past million years.

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Answer:

1. DNA

2. Prokariotic.

3. Crossing over.

4. Maple tree

5. Primary producers.

6. DIAGRAM NOT SHOWN

7. Lipids.

8. A

Explanation:

1. DNA is the macromolecule responsible for carrying the herederitary information of all cells, and even some viruses, with the exception of retroviruses.

2. Prokariotic cells (eubacteria and archeas) are cosmopolite, and lacks a membrane defined nucleus.

3. Crossing over.

During meiosis, homolog chromosomes pair and exchange genetic material, is also known as genetic recombination. This makes the chromosomes inherited not exactly equal to the corresponding from our fathers, or grandfathers.

4. Maple tree belongs to the clade Angiosperms: flowering plants, which produce seeds. Moss is a flowerless plant, this does not produce seeds. Lichen are composed from algae and cyanobacteria (so, not plants). Mushrooms are not plants.

5. Primary producers, such as bacteria and algae, can make organic  molecules from an abiotic source of energy.

6. DIAGRAM NOT SHOWN

7. Lipids are the main component of all biological membranes. In animals, specially cholesterols prevents the membrane from freezing, due its molecular structure. Tryglicerids, for example, provides besides thermal insulation, energy storage, filling space for keeping the organs together, among other functions.

8. The phosphorous is very slow, since it requires the extraction from rocks, starting from metereological processes (rain, erosion), Once in the soil, bacteria, fungi, plants and animals start to absorb it.

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The Pangaea theory supports the theory of plate tectonics because _____. A) it is based on the idea that there were several land masses when Earth was first created B) it is based on the idea that all the present continents were one supercontinent C) it does not require scientists to support the notion that Earth’s plates can move D) one day, Earth will have one large land mass again

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Answer: The population of the burrowing owl may increase in its new surroundings.

Ecological niche is the role or function an organism performs in the ecosystem in order to survive. It describes how an organism obtain it’s food, type of habitat chosen for survival, season used and duration of mating, how it interacts with the other organisms and others.

In the given situation, the population of the burrowing owl may increase in its new surroundings is the least likely outcome of the habitat changes that are described. This is because of the fact that as with the construction of more cities the burrowing owl habitat will be destroyed. These owls will loose their habitat and their ecological niche will be drastically affected. All these consequences will result in the decline in the population of burrowing owl instead of increase in the new surroundings.  

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How did the scientific revolution affect societies between the 17th and 19th centuries? A)Before the scientific revolution, scientists did not have basic scientific equipment, but afterward, they had gyroscopes, anemometers, and compasses. B)Before the scientific revolution, scientists mainly studied biology and physics, but afterward, they mainly studied geology and astronomy. C)Before the scientific revolution, scientists rarely shared their discoveries outside their own country, but afterward, they frequently published books and papers. D) Before the scientific revolution, scientists typically relied on religious traditions, but afterward, they followed an established method of observation.

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Answer:( NOT SURE)

President Theodore Roosevelt was very concerned that all people should be treated fairly. When businesses acted in their self-interest and put the public’s interests in danger, he wasn’t afraid to act. This idea of treating everybody fairly was known as the Square Deal.

President Roosevelt used the Sherman Antitrust Act to deal with businesses that were only focused on their own self-interest. When the creation of the Northern Securities Company nearly led to an economic crisis, President Roosevelt filed suit against the company. The Supreme Court ruled the company had to dissolve. In 1902 when the owners of the coal mines refused to make any compromises to the workers as a way to resolve the coal strike, President Roosevelt threatened to have the government run the mines. He was concerned the public wouldn’t have enough coal to heat their homes as the strike dragged on and as winter approached. Eventually, arbitration was used to end the strike.

President Roosevelt took other actions to be sure businesses were acting fairly. The Bureau of Corporations was established to monitor businesses. The Hepburn Act gave the Interstate Commerce Commission the power to set railroad rates. The Meat Inspection Act and the Pure Food and Drug Act were laws passed to protect consumers. Meat would have to be inspected before it could be sold. It was illegal to falsely label food and medicines.

President Roosevelt believed all people should be treated fairly. His Square Deal programs and policies reflected that belief.

Explanation:

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Scientists infer evolutionary relationships between organisms by comparing what

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Answer:

The correct option will be DNA is contained in chromosomes, and chromosomes are contained in the cell nucleus.

Explanation:

DNA is the genetic material of the eukaryotic organisms which is organised into highly specialized structures to fit in the nucleus of every cell.

DNA forms association with proteins to form compact structure as:

1. 11 nm nucleosomes- formed by wrapping of DNA around histone proteins   forming nucleosomes which appears as beads on a string structure.

2. 30 nm fiber– formed by folding of nucleosomes which form compact structure.

3. 300 nm looped structure– solenoid structure formed by folding of 30 nm fiber.

4. 700 nm chromosome structureformed by folding of 300 nm structure forming compact structure called chromosome.

So, the continuous thread-like molecule of DNA forms a compact structure called chromosome by forming association with proteins which fits into the microscopic space of the eukaryotic nucleus.

Thus, DNA is contained in chromosomes, and chromosomes are contained in the cell nucleus is the correct answer.

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