Can some please help quick!
I need to find the control group for the three experiments.
Please help I’ll give brainliest!!

Answer:

The energy required to break multiple hydrogen bonds causes water to have a high heat of vaporization; that is, a large amount of energy is needed to convert liquid water, where the molecules are attracted through their hydrogen bonds, to water vapor, where they are not.

Answer:

D. Celsius

Explanation:

Temperatures up to 37.3 and down to 36.7 are considered to be within the normal body temperature scale in Celsius.

Answer: D

i hope i answered your question.

Answer:

A virus attaches to a specific receptor site on the host cell membrane through attachment proteins in the capsid or via glycoproteins embedded in the viral envelope. The specificity of this interaction determines the host—and the cells within the host—that can be infected by a particular virus.

Answer:

Viruses initially stick to cell membranes through interactions unrelated to fusion proteins. The virus surfs along the fluid surface of the cell and eventually the viral fusion proteins bind to receptor molecules on the cell membrane (4). If only binding occurred, the two membranes would remain distinct.

Answer:

False

Explanation:

I literally got it wrong on the quiz

Answer:

The answer is false

Explanation:

i took the test

Answer:

D

Explanation:

The atoms in a molecule cannot be separated from each other by the means of physical force because they are bound to each other through chemical bonds. Thus, the correct option is D.

Molecules are a group of two or more similar or different atoms that form the smallest identifiable unit which can be divided into pure substances such as atoms. Molecules retain the composition and chemical properties of the substance from which it is built.

Molecules can be homogenous or heterogenous depending upon the constituent atoms. If different atoms combine to form a molecule then it is heterogenous in nature e.g., CO₂ while the molecule which is made up one type of atom is known as homogenous. Example- O₃.

Molecules have chemical bonds which are responsible for the binding of atoms, these chemical bonds can be broken by applying energy in the form of heat to the molecules.

Therefore, the correct option is D.

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Answer:

Phagocytosis is a type of endocytosis performed by phacytes. Bacteria is engulfed through phagocytosis (part of the cell membrane surrounds the bacteria inside the cell). Then lysosomes fuse with the phagosome and the bacteria is digested. After digestion, the cell perform exocytosis of waste products.

Answer:

2. enzymes

Explanation:

Answer:

No, this is not true.

Explanation:

Fiddler crabs have exoskeletons, meaning their skeletons are found on the outside of their body rather than the inside.

Answer:

What role did endosymbiosis play in the evolution of eukaryotes? Endosymbiosis led to the evolution of eukaryotic cells with mitochondria and chloroplasts.  This kind of natural selection led to the evolution of eukaryotic cells and the plants and animals we see today.

Explanation:

Endosymbiosis is important because it is a theory that explains the origin of chloroplast and mitochondria. It is also a theory that explains how eukaryotic cells came to be. DNA, RNA, Ribosomes and Protein Synthesis

This provided the first substantial evidence for the endosymbiotic hypothesis. It was also determined that mitochondria and chloroplasts divide independently of the cell they live in.

Answer:

Because he has tried many other forms and become a master on the subject therefore from a business standpoint he could corner the production. But from a moral standpoint he has overcome a great challenge that will influence generations to come. It is a good way to describe science because it shows that to overcome a great challenge requires great patientice and time and trial and error.

Explanation:

Answer: powerful drugs that kill bacteria or slow their growth. They treat bacterial infections, not viruses. They keep wounds from getting infected and they clean them so that nothing gets nasty and stuff like that. I hope this helps you :D

Answer:

An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. They may either kill or inhibit the growth of bacteria

I think this technology would be useful near the Gulf Coast, around Florida, the Carolinas and New Jersey and New York.

Answer:

The storm tanks would be useful in cities frequently hit by hurricanes. The East Coast of the United States often experiences flooding from hurricanes. It also might be useful in areas that are prone to flooding, receive excessive rain, or have old or weak dams.

Explanation:

this is the samaple answer to the question, it also has why for explaining.

Answer:

Iraq will have to massively reduce the birth rate to achieve a zero growth rate. In the middle east, there is more sexual freedom which may cause sexual education to be useless. Iraqi government would most likely have to give widespread contraception to its citizens.They would either have to lower birth rates or increase death rates. It would be more practical for the Iraqi government to provide contraception's and sexual education among its citizens to decrease birth rates.

Answer:

Blood flow is decreased below normal due to the build of of plaque in the arteries causing an increase in blood pressure.

Explanation:

When fats, cholesterol,calcium , water  builds up on the endothelial lining of the  Coronary arteries,reducing the diameter,and therefore impeding the flow of blood,these build up is called Plaque.The diseases condition that arise  from this called atherosclerosis.

With continue build up the plaque changes in the chemical components.becomes hardened, further reducing the diameter,blood volume available and therefore oxygen supply to the targeted tissues( cardiac muscles) of the heart.This leads to Ischemic heart diseases e.g chest pain-Angina. With these strokes and other complication may follows due to cut  off in oxygen and nutrients rich blood to the tissues of the brains  for the heart.

The impedance to the blood flow,forced load on the heart to pump blood and therefore High blood pressure.This is the problem with Steve CVS.

Answer:

a country having a standard of living or level of industrial production well below that possible with financial or technical aid; a country that is not yet highly industrialized.

Explanation:

"The heat required to raise the temperature of the unit mass of a given substance by a given amount"

Answer:

The diffusion of molecules is a process that happens in our organism and the solutes move in a single direction that is always respected based on the principles of biochemistry.

Solutes always move or diffuse from compartments of higher concentration to those of lower concentration in order to equalize the amount of solute in both compartments and therefore equalize the concentrations.

Explanation:

These processes must take place between two compartments of different concentrations divided by a selective semi-permeable membrane, that is, only the solute passes and diffuses passively or actively without dragging on water or other molecules.

This process occurs in the body in those with hyper concentration of solutes in the blood in pharmacological situations.

Answer:

The answers are:

high

low

energy

Explanation:

I took this test and got these answers when the answers from other brainly members above proved to be incorrect.

Answer:

all of these

Explanation:

A.  

graphs.

B.  

charts.

C.  

tables.

 D.  

all of these

Presentations are oral and written ways of expressing the topic matter in an effective manner. Scientists often use graphs, charts, and tables for presentations. Thus, option D is correct.

Presentations are the programs that represent the data and information by various elements that make it look effective and presentable. It allows the readers to understand the concept more easily.

It includes the use of graphs that represents the data and census in vertical, horizontal, and dot line, and are used to compare the information. On the other hand, the charts can be like a pie chart that shows the proportions and ratios.

The tables are used to present the data in tabular form, arranged in columns and rows to represent the statistical data. It summarizes the input and output.

Therefore, option D. all of these can be used for an effective presentation.

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Your question is incomplete, but most probably your full question was, To enhance oral and written presentations, scientists often use?

A.  graphs

B.  charts

C.  tables

D.  all of these

Answer:

Scientific theories are created through the process of the scientific method. Observation and research lead to a hypothesis, which is then tested. ... Over time, a hypothesis can become a scientific theory if it continues to be supported by additional research. Theories and laws

Both scientific laws and scientific theories are produced from the scientific method through the formation and testing of hypotheses, and can predict the behavior of the natural world. Both are typically well-supported by observations and/or experimental evidence.

Answer:

Scientific theories are created through the process of the scientific method.

Explanation:Observation and research lead to a hypothesis, which is then tested. ... Over time, a hypothesis can become a scientific theory if it continues to be supported by additional research.

Answer:

stereoisomers are isomers that have the same composition (that is, the same parts) but has difference in the orientation of those parts in space. There are two kinds of stereoisomers: enantiomers and diastereomers .

Answer:

Britannica is an excellent source of information, especially for a school project.

Explanation:

It has many articles and biographies. It also has quizzes to help test your knowledge. It is very good for school and most teachers accept it as a reliable resource.

Answer:Eukaryotic cells are generally larger and more complex than prokaryotic cells. They also contain a variety of cellular bodies called organelles. The organelles function in the activities of the cell and are compartments for localizing metabolic function.

Explanation:

Answer:

Environmental Scientists

Explanation:

Astronomers observe stars, space, and other objects in space. Meteorologists study weather patterns, oceanographers study sea life, and environmental scientists study Earth and the interactions between living and nonliving organisms, air, and water.

Hope this helps!

Answer:

B. Environmental scientists

Explanation:

Let's examine each answer choice.

Keep in mind, we want to find the answer that matches: People who study the effects of human activities on Earth’s land, air, water, and living things.

A. Astronomers

They study stars, moons, galaxies, and planets, so this is not correct.

B. Environmental scientists

They study the environment and how to protect nature. They also examine how humans impact the Earth. This must be the right choice, but let's check the others to ensure we are correct.

C. Meteorologists

They study the atmosphere and weather. This is also not correct.

D. Oceanographers

They study the ocean and its features, therefore this is not correct.

The best answer choice is B. environmental scientists

Answer:

Precise, but not accurate

Explanation:

First, let's define precision and accuracy.

Precision: how close multiple measurements are

Accuracy: how close the measurements are to the true measurement

The three measurements are:

167.0 g, 166.9 g, 167.2 g

The true mass is 172 grams.

We can see that each measurement is far from the actual value of 172 grams: about 5 grams off. They are not close to the actual measurement, so they are not accurate.

The three measurements are very close to each other. They are all within 0.3 grams of each other. The measurements are all close to each other, therefore they are precise.

Therefore, the measurements are precise, but not accurate.

Answer:

More precise than accurate.

Explanation:

Precision is a measurement of how close your measurements to each other, accuracy is a measurement of how close your measurements are to the true value.

Answer:

Scientist three

Explanation

In most experiments, you will find that the averge will outnumber anything else. Think of it like this. If you take a survey of your friends animals they will most likely have a dog or cat, that is your average. One or two might have a snake or lizard, those are your above and below average.

Yes, water is a polar molecule because the Electrons are NOT shared EQUALLY

Answer:

Yes

Explanation:

Water is a polar molecule. Hope this helps.

Answer:

The cell membrane is permeable to small solutes to let them easily diffuse in and out of the cells.

Answer

1. billion

2. radioactive

Explanation:

Answer:

Glycolysis produces pyruvate and ATP

Explanation:

Answer:

Glycolysis produces ATP by oxidizing water

Explanation:

Glycolysis produces ATP and pyruvate by oxidizing glucose and NAD+. Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose. Glycolysis produces CO2, ATP, and pyruvate by reducing glucose.