Answer:
Electrons
Explanation:
(Score for Question 1: of 5 points) 1. How is the word theory as it is used in science different from the common use of the word outside of science?
A scientific theory enables predictions; a theory doesn’t .
A theory is a carefully reasoned explanation for an observation of the natural world that is constructed using the scientific method and brings together a number of facts and hypotheses.
A scientific theory is an explanation of some aspect of the natural world that is supported by repeated experiments and tests. The word "theory" often means unverified or unsupported speculation. But for scientists, the theory has almost the opposite meaning. A theory is a rational explanation of some aspect of nature, such as a law, hypothesis, or fact.
A word theory is a carefully reasoned explanation for an observation of the natural world, constructed using the scientific method and putting together a number of facts and hypotheses. It enables scientists to make predictions about future experiments.
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In a negative feedback loop, the sensor, the integrating center, and the effector are always found in different areas of the body. True or false?.
Answer:
In a negative feedback loop, the sensor, the integrating center, and the effector are always found in different areas of the body is false.
Explanation:
Feedback is a method where one element controls another by either positive or negatively feedback. Positive feedback is a method in which an activity's results drive more of the same action to take place inside a feedback loop. It makes the first action stronger. Negative feedback, on the other hand, occurs when the outcomes of an activity prevent that action from happening again. These systems are present in a wide variety of biological systems. Sugar is converted into cells by insulin, which causes a decrease in blood sugar levels. The insulin secretion will stop resulting into low blood sugar levels. The insulin reaction is negative feedback. Thus, the feedback usually helps to keep the system stable. This might be termed as equilibrium homeostasis in biology.
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Which term best applies to the study of interactions between sharks and their biological and physical surroundings?
The study of interactions between sharks and their biological and physical surroundings is called Ecology.
What is ecology?
The German naturalist Ernst Haeckel is credited with inventing the term ecology, which he used to describe the "relation of the animal both to its organic as well as its inorganic surroundings."
It is the study of how organisms and their surroundings interact. Expanding populations, food shortages, environmental pollution, including global warming, extinctions of plant and animal species, and all the accompanying sociological and political issues are some of the most urgent issues facing humanity today. These issues are largely ecological.
Relationships between organisms and their surroundings can take many different forms. Individuals, groups of individuals, the entirety of a species, the sum of several species, or the overall mass of species (biomass) within an ecosystem can all be considered organisms. Additionally, in addition to physical and chemical components, the term "environment" also refers to the biological environment, which also includes additional creatures.
The relationship between shark and their biological environment such as temperature, salinity, light, etc. makes them adjustable to the environment and hence the term is said to be ecology.
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How many different compounds (isomers) are there that fit the description of a bromo-chlorobenzene?
The no. Of possible isomers for bromo-chloro benzene is 3.
Three possible isomers for bromo-chloro benzene is 1-bromo-2-chlorobenzene, 1-bromo-3-chlorobenzene & 1-bromo-4-chlorobenzene.
Isomers are identical molecules with different structural characteristics. As a result, although having the same number of atoms in each element, isomers have different atomic arrangements.
Even if all molecules have the same molecular formula, they may have various physical characteristics, especially if their respective functional groups are unique. Isomerization is the transformation of one molecule into another molecule with the same number of atoms. This could happen on its own or maybe a reaction is needed to make it happen.
Isomers are generally divided into two categories:-
Structural isomerism - have same molecular formula but different structural formula. Stereo isomerism - Have same molecular formula but different arrangement of atoms in 3d space.To learn more Stereo isomers, refer this link.
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In this stage of mitosis chromosomes are split at the centromere and pulled to opposite ends of the cells
In this stage of mitosis chromosomes are split at the centromere and pulled to opposite ends of the cells is known as anaphase.
Metaphase leads to anaphase, during which each chromosome's sister chromatids separate and move to opposite poles of the cell. Enzymatic breakdown of cohesin — which linked the sister chromatids together during prophase — causes this separation to occur. Upon separation, every chromatid becomes an independent chromosome. Meanwhile, changes in microtubule length provide the mechanism for chromosome movement. More specifically, in the first part of anaphase — sometimes called anaphase A — the kinetochore microtubules shorten and draw the chromosomes toward the spindle poles. Then, in the second part of anaphase — sometimes called anaphase B — the astral microtubules that are anchored to the cell membrane pull the poles further apart and the inter polar microtubules slide past each other, exerting additional pull on the chromosomes.
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Three cells with generation times of 60 minutes are inoculated into a culture medium. Assuming no lag phase takes place, how many cells are there after 5 hours?.
There are 96 cells are there after 5 hours.
The lag period is the adaptation period during which bacteria adapt to new conditions. The length of the induction period varies greatly depending on the conditions under which the bacteria were generated and the conditions different from the state of the bacterial cell itself.
The number of bacteria in the culture increases according to the law of exponential growth. 100 bacteria in 3 hours, 800 bacteria in 6 hours. The lag phase is one of the earliest stages of the bacterial growth cycle. At this stage, bacteria tend to adapt to growth conditions. Here individual bacteria mature but do not yet divide. Enzymes, RNA, and various molecules are synthesized during this stage of the growth cycle.
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Efforts to discover whether the intelligence of children is more heavily influenced by their biology or by their home environments are most directly relevant to the debate regarding.
Efforts to discover whether the intelligence of children is more heavily influenced by their biology or by their home environments are most directly relevant to the debate regarding nature versus nurture.
In the field of psychology, nature versus nurture represents the competition between two factors i.e genetic and environmental that influence behavior in an individual.
Psychologists believe that there are certain behavioral characteristics that are influenced by our genetic makeup. There are other characteristics that are influenced by our environment.
The intelligence of a person is a complex virtue that is dependent on both nature as well as nurture, according to some psychologists. However, scientists still have a debate that which among these two factors is involved more heavily in the intelligence of children. The debate of nature vs nurture is common in determining various psychological aspects.
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i need help with this please asap
ation The Sun transfers heat to Jane and Theo's bodies as they sit on the sunny bench, increasing their body temperature. Which of the following responses by their bodies would help decrease their temperature and maintain homeostasis? Choose ALL that apply. A Vasodilation; their skin will turn red as blood is moved to the surface of the skin. B. Goosebumps; the muscles under the hair in their skin will contract. C ABC Vasoconstriction; their extremities will turn pale or blue as blood moves to the core of the body. D. Sweating; the water released from their skin will evaporate.
Vasoconstriction; their extremities will turn pale or blue as blood moves to the core of the body also their Sweating; the water released from their skin will evaporate.
Vasoconstriction slows down the body's heat loss through the skin's blood vessels, warming the body. The body attempts to regain homeostasis as part of a negative feedback loop, which includes this action (maintaining a constant internal environment).
As an illustration, vasoconstriction causes the blood vessels to constrict and blood to move at a higher pressure in an effort to actively prevent a hypoxic reaction.
Your sweat glands produce perspiration when your hypothalamus feels that you are too hot, which helps to cool you off. The hypothalamus sends messages to your muscles to twitch in order to warm you up when it detects that you are too cold. Maintaining equilibrium is what we mean by this.
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Analyze data using natural fluxes, is the air-sea gas exchange balanced? Is the carbon used in photosynthesis balanced by carbon given off by cellular respiration? Use data from the diagram to support your answers HELP ME SOMEONE HELP HELP HELP PLEASE
The air-sea differential in atmospheric composition and the interchange ratio, which regulates how rapidly a gas molecule may traverse the ocean-atmosphere border, are the main factors controlling the physio-chemical process of air-sea gas exchange.
Carbon dioxide is released during cellular respiration/gas exchange as a waste product. Cells that are capable of photosynthesis can utilise this carbon dioxide to create new carbohydrates. Additionally, oxygen gas is necessary to act as an electron acceptor during the process of respiration/gas exchange. From both the environment into the seas and from the seas into the atmosphere, gases are transported. The difference in gas concentration between both the atmosphere and the water, as well as the wind speed, are the two most significant variables that affect gas exchange.
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The+mass+extinction+that+led+to+the+loss+of+96%+of+marine+life+and+70%+of+terrestrial+life+was+most+likely+due+to+a+supernova,+an+asteroid+impact+or+__________.
The mass extinction that led to the loss of 96% of marine life and 70% of terrestrial life was most likely due to a supernova an Asteroid impact or Volcanic eruption.
What do you mean by Volcanic eruption? How does it occur?When lava and gas are released from a volcano, often explosively, this is known as an eruption. A "glowing avalanche," which occurs when recently erupted lava slides down the flanks of a volcano, is the most hazardous type of eruption. They are swiftly moving and can withstand heat up to 1,200 degrees Fahrenheit.
Deep within earth it is so hot that some rocks slowly melt and become thick a flowing substance called magma.
Volcanic eruption can affect floods ,mudslides ,power outages etc.
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a researcher is studying how a bacterial infection might spread through a human body. Which model could she use to simulate how it spreads through organ systems?
A. Computer Model
B. Physical Model
C. Conceptual Model
D. Mathematical Model
The model the researcher can use to simulate how the bacterial infection might spread through a human body is a physical model (option B).
What is a model?A model is a representation of a physical object, usually in miniature.
A model is a simplified representation used to describe the workings of a real world system or event.
There are different types of models used as follows;
Computer ModelPhysical ModelConceptual ModelMathematical ModelA physical model is a simplified material representation of an object or phenomenon that needs to investigated.
According to this question, the model the researcher can use to simulate how the bacterial infection might spread through a human body is a physical model.
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Which vertebral level does the transumbilical plane pass through? a) t10 b) t12 c) l3/l4 disc d) l5/s1 disc e) at the level of the sacral promontory
The transumbilical plane crosses the l3/l4 disc. The transumbilical plane, also known as the umbilical plane, is a horizontal line that runs through the abdomen at the navel level (or umbilicus).
What is transumbilical plane?The transumbilical plane, also known as the umbilical plane, is a horizontal line that runs through the abdomen at the navel level (or umbilicus).During a physical examination, clinicians divide the abdomen into four quadrants by using the transumbilical plane and its intersection with the median plane.Right upper quadrant (RUQ), right lower quadrant (RLQ), left upper quadrant (LUQ), and left lower quadrant (LLQ) are the four quadrants (LLQ)This assists clinicians in localizing, identifying, and diagnosing a patient's symptoms. The umbilicus is located at the level of the L3 and L4 vertebrae. The skin around the umbilicus, on the other hand, is supplied by the thoracic spinal nerve T10 (T10 dermatome) "T10 for belly but-ten" is a useful mnemonic.To learn more about vertebral level:
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Found in 1874, __________ area was found during an autopsy, which revealed a lesion on the left __________ lobe of a patient who had incomprehensible speech and zero ability to comprehend written or spoken language.
Option D is correct:
Found in 1874, Wernicke’s area was found during an autopsy, which revealed a lesion on the left temporal lobe of a patient who had incomprehensible speech and zero ability to comprehend written or spoken language.
German physician, anatomist, psychiatrist, and neuropathologist Carl Wernicke. He is renowned for his groundbreaking studies on receptive aphasia and the pathogenic effects of particular types of encephalopathy, both of which are generally referred to as Wernicke encephalopathy and Wernicke's aphasia, respectively.
The Wernicke area was first discovered in 1874 by Carl Wernicke. It is one of the two areas of the cerebral cortex that regulate speech, according to research. Wernicke area is located in the superior temporal gyrus' posterior part, also known as Brodmann area 22 in the dominant hemisphere.
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Question correction:
Found in 1874, __________ area was found during an autopsy, which revealed a lesion on the left __________ lobe of a patient who had incomprehensible speech and zero ability to comprehend written or spoken language.
A. Wernicke’s . . . frontal
B. Broca’s . . . temporal
C. Broca’s . . . frontal
D. Wernicke’s . . . temporal
What makes red blood cells settle faster through the plasma when there is inflammation or infection?
Answer:nikhi
Explanation:
Explain TWO reasons why some countries are against reducing the carbon dioxide emissions by their industries.
message
Which is most likely an effect of the Gulf Stream?
Heavy rains in California
Severe drought in Australia
Windy conditions in Europe
Milder winter temperatures in Florida
Answer:
Milder winter temperatures in Florida
Explanation:
-
If+a+cell+has+150%+more+of+a+protein+than+what+is+considered+normal+what+type+of+karyotypic+abnormality+would+be+expected?
If a cell has 150% more of a protein than what is considered normal aneuploidy could be expected.
What is meant by aneuploidy?Aneuploidy is the term for chromosomes that are either absent or over-represented. As a woman becomes older, her chances of producing a child with an aneuploidy rise. The most typical aneuploidy is trisomy. A third chromosome is present in trisomy.What occurs if a person has aneuploidy?A cell that is aneuploid will have an improper number of chromosomes. A common cause of miscarriage, particularly in the early stages of pregnancy, is aneuploidies.What causes aneuploidy the most frequently?The majority of aneuploidies result from meiotic errors, particularly in maternal meiosis I. For some time, scientists have understood that the nondisjunction of chromosomes during meiosis is the primary cause of aneuploidies.To learn more about aneuploidy visit:
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The notion that every stimulus pattern is seen in such a way that the resulting structure is as simple as possible is called the law of.
The notion that every stimulus pattern is seen in such a way that the resulting structure is as simple as possible is called the law of Pragnanz.
What is law of Pragnanz?The law of prägnanz is sometimes known as the law of simplicity or the law of excellent figure. This idea states that when you present your brain with ambiguous or complex objects, it will make an effort to simplify them. When Max Wertheimer noticed a series of lights blinking on and off at a railroad crossing in 1910, he had an epiphany. It reminded me of the way the lights around a marquee in a movie theater flicker on and off. The human eye enjoys finding simplicity and order in complicated shapes because it keeps us from becoming overloaded with information.
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in the book of "the pearl" How is the pearl buying and selling market a “setup”?
The pearl buying and selling market a “setup” is all four businesses are owned by the same man, giving the impression of competition even though there is none.
Explain the pearl- book.John Steinbeck, an American author, wrote a novella titled The Pearl. The tale, which was first released in 1947, centers on a pearl diver named Kino and examines man's motivations as well as greed, disobedience of social conventions, and wickedness. During a visit to the formerly pearl-rich region in 1940, Steinbeck heard a Mexican folk tale from La Paz, Baja California Sur, Mexico, which served as his inspiration.
La Perla, a 1947 Mexican movie, and Ondu Muttina Kathe, a legendary Kannada film, were both adaptations of the book (1987). One of Steinbeck's best-known works, the narrative has been extensively used in middle and high school courses. Some people believe that The Pearl is a parable.
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Carbon-14 decays to nitrogen-14 with a half-life of approximately 5700 years. After 57,000 years, approximately what fraction of the initial carbon-14 would be left in an organic sample?.
The initial carbon-14 would be left in an organic sample 74.1% .
Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegration per second of a radioactive material to decrease by one-half.
Now,
If the half-life of 4Cis 5700years, then that means after 5700years have happened, there will be half of the original amount, i.e. 50%of the original amount of 14Cleft.
So, after 2476years, the sample of 14Chas evolved:
2476/5700≈43.4%of a half-life.
A rule to remember is that if nis the number of half-lives elapsed, there will be 100/2n%of the original amount of substance remaining.
So here, n=43.4%=0.434. Therefore, there will be100/2^0.434
≈100/1.35
≈74.1% of the original amount remaining.
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Antibiotics produced by bacteria, mold, or yeast can be classified as what kind of inhibitors?
Answer:
Antibiotics produced by bacteria, mold, or yeast can be classified as irreversible inhibitors.
Explanation:
An irreversible inhibitor inactivates an enzyme by bonding covalently to a particular group at the active site. Hope this helped :)
What two functional groups combine to form the ester in the final product, methyl benzoate?
Alcohol and carboxylic acids are two functional groups that combine to form methyl benzoate.
For the making of benzoate ester, alcohol and carboxylic acid are two functional groups of methyl benzoate.
Methyl benzoate is made by condensing a compound containing a carboxylic acid functional group namely benzoic acid and another compound containing an alcohol functional group namely methanol. It also plays a role in attracting insects and acts as a metabolite.
Methyl benzoate is a crystalline solid, it has a density lower than that of water. Being in its contact can irritate mucous membranes, skin and eyes. It's used in pharmaceutical industries for making other chemicals. It is known as methyl ester and benzoate ester.
Therefore, alcohol and carboxylic acids are two functional groups that combine to form methyl benzoate.
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What characteristics of life are not independently demonstrated by viruses?
Because they are not formed of cells, viruses cannot maintain a steady state, develop, or generate their own energy. Viruses are more like robots than actual living things, even though they do multiply and adapt to their surroundings.
What aspects of life are exhibited by viruses?The ability to replicate and mutate are two aspects of life that viruses possess, but only in live host cells.
Viruses and bacteria differ greatly from one another. While viruses may grow in both living and nonliving environments, bacteria are found in nature. While viruses might perish without a host, bacteria can live without one. Viruses reproduce by lytic fission, whereas bacteria reproduce through binary fission.
Although they are minuscule as well, viruses are distinct from other microbes.
Viruses are intracellular creatures (they infect the host cell), whereas bacteria are intercellular organisms (they exist in between cells).
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Explain how each of the following passes from the extracellular fluid into cells: _______
(1) oxygen,
(2) calcium ion,
(3) ethanol,
(4) glucose, and
(5) growth factors.
Here are the explanation on how each of these passes from the extracellular fluid into cells:
1) Diffusion allows oxygen to move from the extracellular fluid into the cell. The concentration is quite high outside the cell and very low inside. As a result, substances reach cells through different concentration points.
2) The plasma membrane's ion channels are used to transfer calcium.
3) After entering our blood from the digestive system, ethanol enters cells with the assistance of proteins.
4) Facilitated diffusion through the plasma membrane allows glucose to enter the cell. With the aid of unique proteins found in the cell membrane, a material enters the cell via this form of diffusion.
5) Growth factor is affixed to receptors found on the surface of the cells they are trying to penetrate.
Extracellular fluid differs from intracellular fluid (fluid inside the cells) in that it typically has a higher sodium concentration and a lower potassium concentration, whereas intracellular fluid has a higher potassium concentration and a lower sodium concentration. Cells frequently produce the liquid to maintain a stable environment for cellular functions.
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Which two pollutants are responsible for the production of ozone in the troposphere?
Two pollutants are responsible for the production of ozone in the troposphere VOCs and NO2.
The combination of UV radiation from the sun with hydrocarbons and nitrogen oxides released by smokestacks and automobile tailpipes results in the formation of tropospheric ozone. High ozone levels in cities typically occur during the balmy summer months.
The main photochemical interactions between two major groups of air pollutants, volatile organic compounds (VOC) and nitrogen oxides, produce tropospheric or ground-level ozone, which is what humans breathe (NOx).
Pollution released by vehicles, power plants, commercial boilers, refineries, and chemical facilities is what causes ground-level ozone. Even paints, household cleaners, solvents, and powered lawn equipment may contribute to ozone pollution.
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Why does the scientist start with low power lens and then switch to a high power lens ??
to increase the magnification
Changing from low power to high power increases the magnification of a specimen
makes it easier to find an object on low power, and then switch to higher power after it is in focus
the field of view will be wider, increasing the number of cells you are able to see. This makes it easier to find what you're looking for.
You must have the object centered before you change objectives to increase the magnification
lowest power has the highest field of view. As a result, it is easier to locate the specimen on the slide than if you start with a higher power objective.
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How might studying psychology help you live a fuller, happier life? Give specific examples.
Studying psychology can help me live a happier life by giving motivation, improving my leadership and communication skills. Psychology may help me read other people better which can help me communicate with them more easily. It also improves my memory and teaches me to make better decisions. Studying psychology may help you solve my problems, not on the outside word but mentally. If I do not have everything figured out, studying psychology may improve my state of mind, helps me be more focused and improves grades. If you I am healthy psychologically, then my mind may tell me to stay physically healthy and it might motivate me to be more productive.
What is Psychology studied?Psychology is the area that studies behavior and issues that permeate human life. It is the science that aims to understand feelings, emotions, impressions and other issues inherent in a person. The psychologist is the professional responsible for delving into this science.
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In what species and in what environment did bipedalism first arrive in evolutionary history?
Ardipithecus was the first species in which bipedalism first arrived and they lived in open savanna environment.
What is the evolution of bipedalism?
Bipedalism is the ability to stand and walk completely on two feet. The bipedal gait evolved 4 million years ago and is characteristic of modern humans. Efficient locomotion and empty and free hands are the main advantages of bipedalism.
Ardipithecus, the earliest known genus of the zoological family Hominidae (the group that includes humans and excludes the great apes) and the probable ancestor of Australopithecus, a closely related group often thought to be the ancestors of modern humans. Ardipithecus lived 5.8 to 4.4 million years ago, from the late Miocene. These were the first ones to develop bipedalism while continuing living in the open savannas.
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Semen is made up of a mixture of secretions from all of the following except? d) prostate gland b) bulbourethral glands c) testes a) seminal vesicles
Semen is a mixture of secretions emanating from each of the following organs except the prostate gland.
What exactly is the prostate gland?In men, the prostate gland is found underneath the bladder and surrounds the top portion of something like the tube which it drains the bladder's urine (urethra). The fundamental function of the prostate is to create the fluid that nourishes as well as transports sperm (seminal fluid).
What exactly is sperm?Semen is the thick fluid which it emerges from men's. It transports sperm from a man's body so that it can fertilize an egg and generate an embryo (the first stage of pregnancy).
Is sperm as well as sperm the same thing?Sperm is a component of semen, however, semen is not a component of sperm. Semen, commonly known as ejaculate , has been the whitish fluid that usually, but not always, flows out of the that whenever a person comes.
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