Answers
Answer:
1st, 2nd and Last option
Explanation:
The number of protons is equal to its atomic number. Neutral atom means that the charge in the atom is 0. In order to make the charge 0, the proton and electron charges have to be additive inverses, meaning the sum of the proton and electron charges have to be 0. Each proton has a +1 charge while each electron has a -1 charge. Hence, the number of protons and electrons have to be equal.
Related Questions
Analyze and evaluate how natural selection produces change in populations as opposed to individuals
Answers
Answer:
For natural selection to work there must be variation in the population for it to act upon and so ‘choose’ the most fit genes for a particular situation. Populations tend to produce more offspring than the environment can support, and the inevitable consequence of this overproduction of offspring is a struggle for survival. Natural selection creates these selection pressures so the organisims best suited for the environment are more likley to survive and therefore pass on their genes to their offspring.
Natural selection can only happen in a population rather than an individual becasue it is the whole population's characteristics culmalitvley changing to better suit the environment. By passing down favourable traits to their offspring. It cannot happen in an individual because they cannot change their traits to better suit the environment, only pass on their traits to their offspring. A change due to natural selection can take generations
2 diff ways antibiotics work against bacteria
Answers
Answer:
There are two main ways in which antibiotics target bacteria. They either prevent the reproduction of bacteria, or they kill the bacteria, for example by stopping the mechanism responsible for building their cell walls.
Answer:
Antibiotics can kill bacteria by:
1. Preventing the production of peptidoglycan that forms the cell wall. The cell will continue to grow without developing new cell wall, this causes the already existing cell wall to get weaker which will eventually cause the cell to rupture.
2. Stopping the production of proteins (protein synthesis) which prevents the production of new DNA
On Earth, how do objects fall? (1 point)
O toward the center of the Earth, as a result of gravity
O toward the surface of the Earth, as a result of a force other than gravity
O toward the center of the Earth, as a result of a force other than gravity
toward the sun, as a result of gravity
Answers
Answer:
bien y tu? que tal, yo bien gracias es lo bueno y tu que tal
Answer:
toward the center of earth as a result of gravity
What would be the benefits and drawbacks of having oil or alcohol as your main body fluid when it comes to cooling?
Answers
Answer:
Blowing on your wet hand helps the water and alcohol to evaporate. The airflow will also support the heat transfer away from your skin.
Explanation:
research
5. Evaluate the impact of pasteaur's on both
Scientific thought and society. What was the affect
Of Pasteurs investigation on scientist ideas and
people's lives?
Answers
Answer: Pasteur discovered Pasteurization, meaning without his discovery, today, we would not have easy access to long lasting milk. His discoveries also help scientists with vaccines.
Explanation:
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
Water is the most abundant molecule in the body, but it is not a biomolecule. Neither are carbon dioxide,
ethanol, or methane. Review the definition of a biomolecule and the structure of these biomolecules
compared to glucose and alanine, and explain why glucose and alanine are important and common
molecules are not biomolecules.
Answers
A biomolecule is one that is created by a living thing by definition. Water is therefore the external supply of carbon dioxide that living things use to manufacture proteins to fulfill their energy needs.
Water molecules have a slightly positive and a slightly negative side as a result of the unequal sharing of electrons.
There is neither a positive nor a negative side to some molecules, as ethane.The unequal distribution of electrons within the polar molecule is what distinguishes polar (water) from non-polar (ethane) molecules. Covalent bonds in nonpolar molecules have an equal number of electrons.Within aqueous solutions, water is universalizing everything formed from atoms and molecules.Molecules of two or more substances are combined in a homogenous manner to form solutions. Typically, the chemical with the highest concentration is the solvent. Some chemicals are soluble in little doses.Learn more about biomolecules here:
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Describe the two functions of the coarse focus knob on the SI V-Scope.
Answers
The coarse focus knob on the SI V-Scope lowers and raises the microscope stage and uses power to focus.
The coarse focus knob on most microscopes is located around the bottom center part of the arm of the microscope as illustrated in the image below. The larger of the two knobs and one that is closest to the microscope's arm is the coarse adjustment knob.
Only the lowest power objective lens should be used with the coarse focus knob. You will only need to utilize the fine focus once it is in focus. With higher lenses, using the coarse focus could cause the lens to fall into the slide.
Focus (coarse), The coarse focus knob is used to roughly or almost focus the specimen. Focus (fine), After bringing the image into focus with the coarse focus knob, use the fine focus knob to make it more sharply focused.
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Which of the following statements is not true of lipids?
a. they are the primary source of energy for bodily functions.
b. they are digested and absorbed in the small intestines.
c. they are made of long chains of triglycerides and fatty acids.
d. they are the source of fat-soluble vitamins in the body.
Answers
How did the scientific research that started the Green Revolution affect society?
Answers
There were many impacts of green revolution which was affected our society and these were there was increase in area of farming because the main aim of green revolution was to increase the productivity of the crop.
What is green revolution?A revolution was started worldwide and the main objective of the revolution was to grow crops as much as possible and this revolution was for large production of crop than on this basis its name was decided and the name of the revolution was green revolution.
In India a great geneticist M.S. Swaminathan has started green revolution and it was started near about 1960 and this has changed the scenario and due to this revolution production of crops increased.
Therefore, There were many impacts of green revolution which was affected our society and these were there was increase in area of farming because the main aim of green revolution was to increase the productivity of the crop.
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The structure labeled as x is the___, so the cell in the image is a ____. The structure labeled as w is the ___, so the cell in the image is a ___
Answers
The cell in the photograph is a Eukayotic cell since the structure with the label "x" is the nucleus. The cell in the image is a plant cell since the component marked with the letter "w" is the chloroplast.
What is plant cell?
Plant cells are the essential building element of life in species of the order Plantae. These cells, which are referred to as eukaryotic cells, contain a true nucleus as well as specialized parts called organelles that have various functions. Only in plants are chloroplasts, specialized organelles that utilise photosynthesis to make sugars in their cells.
Eukaryotic cells found in plants differ significantly from those seen in other eukaryotic organisms in a number of significant ways. One of the traits that sets a plant cell apart from other cells is the presence of a cell wall outside of the cell membrane.
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what is osmosis and what are the function
Answers
Answer:
the transport of a solvent through a semipermeable membrane that separates two solutions of differing solute concentration.
Explanation:
hope this helps
Answer: when water moves from an area of LOW solute concentration (low osmolarity) to an area of HIGH solute concentration (high osmolarity) through a semipermeable membrane.
Explanation: In biology, osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.
Why is it important that some substances won’t be solubilized in water?
Answers
Answer:
They are not polar
Explanation:
For a substance to be soluble in water, the substance should have H+ and OH- ions and hydrogen bonds. for example ethanol (C²H⁵OH)
Studying the folding patterns of protein molecules can help microbiologists better understand cellular processes as well
as some diseases, such as Alzheimer's, that are caused by proteins that have misfolded. The folding of these
complicated molecules can be simulated on computers, but it takes a lot of processor power and time for even
expensive supercomputers to do this.
A group of researchers at Stanford University developed software that can be used to distribute the processing of data to
anyone who is willing to donate time on their idle personal computers. As a result, the researchers have been able to
achieve protein-folding simulations that are far better than those other computing methods have done. Which statement
best describes the work of these researchers?
Answers
Running an experiment required the researchers to use ingenuity to tackle an issue.
The correct answer is "Running an experiment required the researchers to use ingenuity to tackle an issue."
It is the best choice since researchers can process data on anyone's computer who wishes to lend it to them, thanks to software that scientists created. In other words, they came up with a clever solution to the time and financial constraints that the simulation of these proteins folding had.Since the data can be replicated using the program, the work qualifies as scientific, and the fact that the data were not processed in a single location does not change this.The researchers employed more than just tried-and-true scientific methods. It is not a proven scientific method for anyone to be able to contribute time from their computer using software.In conclusion, the answer given above is the best one. Scientists employed ingenuity to find a solution; otherwise, it would have cost time and money to slow down or cease the research.To learn more about protein molecules visit:
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What historical, political or geographical factors contribute to this difference in renewable energy consumption? List at least three different factors.
Answers
The historical, political or geographical factors that contribute to the difference in renewable energy consumption are energy generation, the dependence of natural resources that are uncontrollable by man, problems of energy quality and location of the resource.
What are the problems of renewable energy?One of the main challenges for generating energy from renewable sources is economic. Investing in energy matrices from renewable sources has a high cost, in addition to being considered a risky investment.
What are the problems of non-renewable energy?Non-renewable energy is also considered a type of dirty energy, as it causes damage to the environment and also to man, such as the destruction of ecosystems, global warming, acid rain, the greenhouse effect, among many other problems.
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Which statement best describes a difference between a scientist and an
engineer?
A. A scientist asks, "Why does this happen?" while an engineer asks,
"How can I make this work?"
OB. A scientist gets inspiration only from nature, while an engineer
gets inspiration only from human-made things.
OC. A scientist is focused on meeting the needs of people, while an
engineer is concerned with the pursuit of knowledge.
OD. A scientist follows a series of steps, while an engineer solves
problems without a process.
Answers
The statement that best describes a difference between a scientist and an engineer is a scientist would ask, "Why does this happen?" while an engineer would ask, "How can I make this work?"
Scientist indulge in research to know the process behind the things that are happening in either living or non-living matters. They focus mostly to the understand the mechanism so that they could provide a solution. On the other hand, Engineer indulges in making a product based on the recordings from research or it can be novel.
Scientist and engineer can get their inspiration from both nature and human-made things as it is not restrained. It’s not something that can be separated.
An Engineer is focused on meeting the needs of people, while a scientist is concerned with the pursuit of knowledge. But we can’t be certain as knowledge is required for the development. Both are inter-related.
A scientist and an engineer may follow a series of steps or solves problems without a process based on the requirement.
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Water you drink is absorbed into the blood from the digestive tract. An increase in water intake caused an ___in the plasma osmolarity.
Answers
Answer:
an Decrease.
Explanation:
Hope this helped!
What’s the answer???
Answers
Answer:
ObservationProblem questionExplanation:
This is an observation because the person noticed the lake was brown. They then wondered why the lake was brown, so that becomes a problem question.
Hope this helps.
Cyanide (CN-) poisoning stops cellular respiration by inhibiting the actions of cytochrome c oxidase enzymes in the mitochondria. Specifically, cyanide blocks complex IV of the electron transport chain. What does that suggest about oxygen’s role as an electron acceptor?
Answers
For each of the following, state whether it is an organelle, a cell, a tissue, an organ, an organ system or an organism
A heart
B trachea
C onion epidermis
D onion bulb
E onion plant
F human being
G lungs
Answers
Answer:
all of the organs are needed for the human body
B) Trachea= Organ
C) onion epidermis= tissue
D) onion bulb= organ (for plant)
E) onion plant= organ (for plant)
F) Human being= single structure but it is made up of billion of smaller structures of four major kinds: Cells, Tissues, Organs and systems.
G) lungs= organ
Hope this help!!
One of the main reasons that the American diet is unbalanced
Answers
One of the main reasons that the American diet is unbalanced is because of their high consumption of preserved or canned food and a diet that is rich in fats and calories.
A balanced diet must contain the following seven components: carbohydrates, protein, fat, fiber, vitamins, minerals, and water.Maintaining good health and feeling your best can both be facilitated by eating a healthy, balanced diet. To acquire and maintain a healthy body weight, this entails consuming the appropriate amounts of food and drink, as well as a wide variety of meals in the appropriate quantities.Foods that have been preserved and are not truly fresh are referred to as processed foods. Processes that involve the addition of preservatives include canning, smoking, salting, and curing.Because processed meals are frequently easier to find than fresh foods, many consumers choose them over fresh produce. Fresh goods might occasionally be more expensive than their processed equivalents.Hence, the American diet is unbalanced because of their consumption of processed food.
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627272728828281910919192992
Answers
Answer:
These are numbers.
Explanation:
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In a lab experiments where researchers are collecting data on hallucinations drugs they are most likely are stimulating overactivation of : 1. Serotonin 2. melatonin 3. dopamine or 4. epinephrine
Answers
In lab experiments where researchers are collecting data on hallucinations drugs, they are most likely stimulating the overactivation of melatonin.
What is melatonin?
Your body produces melatonin, a hormone that affects sleep. Melatonin is produced and released by the brain according to the time of day, rising in the dark and falling in the light. With age, melatonin production decreases.
In the form of an oral tablet or capsule, melatonin is also offered as a dietary supplement. The majority of melatonin supplements are created in a lab. Melatonin is frequently used by people to treat sleep disorders like jet lag and insomnia.
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Giving brainiest to whoever helps me with this question. (Very Hard)
Answers
Answer:
Basically you need to get several goldfish and different containers that are a different water temperature.
Explanation:
Get your goldfish. About 3-4 because the water should affect each of them about the same, so you want to make sure that it is the same outcome each time and not just a fluke.Get your water containers. Ideal water for goldfish is about 68-74 degrees. Anything below 68 is considered to cold, and anything about 74 degrees would be considered to hot. However, with this experiment, you will need "cold" water (anything under 67 degrees ideally anything under 55 degrees would be nice and "cold" for the fish), ideal water (68-74 degrees), and then "hot" water (anything above 75 degrees. Ideally about 77 - 85 degrees would be hot enough for them)Next I'd say form your hypothesis. When water is too cold, goldfish may stop eating, begin hibernating or die. When the water is to hot goldfish will become very stressed, and can overheat and die. So, choose a hypothesis from that.Your independent variable would be the water temperature, because it doesn't depend on anything. While how your goldfish act would be the dependent variable because they act according to the water temperature.Good luck with your experiment, and this is all I got for ya! Good luck!
The stomach secretes _______________________, __________________ and
_________________ which act on food
Answers
The stomach secretes hydrochloric acid, digestive juices and
enzymes which act on food.
Explanation:The stomach secretes water, electrolytes, hydrochloric acid, and glycoproteins, including mucin, intrinsic factor, and enzymes. Gastric motility and secretion are regulated by neural and humoral mechanisms.
Which cell structure would be found in a plant cell but not in an animal cell?
A. Permeable cell membrane
B. Large central vacuole
OC. Membrane-enclosed nucleus
OD. Endoplasmic reticulum
Answers
Answer:
B
Explanation:
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11 Answer:
Some bacteria use air movements to carry them from one place to
another, while others are _____, moving through the use of attached
filaments.
12 Answer:
Too small even to be considered a microorganism, _____ are among
the simplest forms of life on Earth, consisting only of genetic
material (DNA or RNA) surrounded by a protein coat.
13 Answer:
Preventing microbial contamination of a food involves controlling
_____, contamination, temperature� and moisture levels during processing.
Answers
Answer:
11: Non-Mobile (unable to move on their own or in the air).
12: Cells (?).
13: Sanitization (?).
Hope this helps <33 (sorry if any of this is wrong).
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Identify three (3) social and cultural
perspectives
an individual may possess.
1:3
Answers
Cultural Perspectives: nationality, race, gender
Social Perspective: Symbolic Interactionist Perspective, Structural Functionalist Perspective
A cultural perspective can be defined as:
“Cultural perspective refers to the way individuals are shaped by their environment and by social and cultural factors.These factors include a person’s nationality, race and gender.”
What is a sociological perspective?
"The sociological perspective is to see through the behavior of people and the appearance of organizations" (Berger, 1963). A sociological perspective looks at society through a lens that excludes personal opinions. Generalize individual causes and behaviors into patterns and categories.The Symbolic Interactionist Perspective:
The Symbolic Interactionism perspective, also known as Symbolic Interactionism, encourages researchers to explore symbols and nuances, their meaning and their impact on the interactive relationships of everyday life.
A Structural-Functionalist Perspective:
In sociology and other social sciences, structural-functionalism is the view that all the institutions, relationships, statuses, and practices that make up society have a purpose and are essential to the sustained functioning of other members and of society as a whole. function as a school. .
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Which is an ion found in a glass of water?
OA. 0₂
OB. N
OC. 0
OD. Ht
SUBMIT
Answers
What is protected within the nucleus?
A. Polysaccharides
B. DNA
C. Prokaryotic cells
Answers
Answer:
I want to say C. Prokaryotic cells
Explanation:
I could be wrong
1.Kim wanted to determine how temperature affected the growth of E. coli, a common intestinal bacteria in humans. The normal body temperature for humans is 98.6oF. He took one culture of bacteria and grew them at 95oF, 98.6oF,100oF and 108oF.
what is the control and experimental group?
Answers
In the student's experiment;
the control group is bacteria grown at 98.6°Fthe experimental group is bacteria grown at 95°F, 100°F, and 108°F.What are control and experimental groups in an experiment?The control group in an experiment is the group which does not receive the treatment that the researcher wishes to determine its effect on a group in the experiment. The control group may receive he standard treatment.
The experimental group in an experiment is the group which receives the treatment that the researcher wishes to determine its effect on a group in the experiment.
In the experiment;
the control group is bacteria grown at 98.6°Fthe experimental group is bacteria grown at 95°F, 100°F, and 108°F.
In conclusion, an experiment has a control and experimental group.
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