Answer:
How do polar molecules form hydrogen bonds?
Polar molecules form hydrogen bonds when hydrogen is bonded to Nitrogen, Oxygen, or Fiorina. This is because these atoms are highly electro-negative meaning they often have the electron they have sharing with hydrogen. Hydrogen atoms bonded with these atoms are attracted to the partial negative charge of similar atoms.
What determines whether a compound will dissolve in water?
Water is a polar molecule and transmits a partial positive and negative change between its atoms, enabling it to easily dissolve other ions and polar molecules.
How do polar molecules differ from non-polar molecules?
Polar molecules have charged regions due to unequal sharing of electrons/ Nonpolar molecules do not have charged regions because electrons are shared more equally. The charge differences tend to keep the molecules separate.
Describe an example of cohesion or adhesion that you might observe in your daily life.
Cohesion: water beading on a surface.
Adhesion: water sticking to the side of glass.
HELP ME ASAP HELP ME PLZZZ HELP MEEEEEEEEE
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 FIRST FOR BRAINLIEST
Which is a limitation of comparative investigations? a)They give results that are usually not repeatable by other scientists. b)They might show variable relationships that are not actually cause and effect. c)They can usually only be conducted in labs instead of in natural environments. d)They are usually inexpensive, but they do not provide new information.
Answer:
B) they might not show variable relationships that are not actually cause and effect.
Answer:
the correct answer is
-they might not show variable relationships that are not actually cause and effect.
Explanation:
What does specific heat mean?
"The heat required to raise the temperature of the unit mass of a given substance by a given amount"
how are decomposers and scavengers beneficial to an ecosystem?
Answer:
Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.
Explanation:
Question 2 of 10 which structure is most likely used for motion?
Answer:
It's the picture of the dolphins tale or fin, whatever it's called.
In this case answer B.
Explanation:
The leaf isn't used for motion.
The tail is moved up and down etc.. and creates motion that helps the dolphin swim.
The apple isn't used for motion.
The wolf's eye is used for sight, not motion.
Thus the answer is picture B.
The structure that is most likely used for motion is the tail fin of the fish. The correct option is B.
What is motion?Motion is changing or modifying an object when applying a force. The living body move or locomote with the locomotion organ. These are different types of locomotion organs in different organs.
There are different organs in different animals for locomotion and motion. In humans there are legs, in animals there are paws and in fishes, there are fins, in insects, there are wings and legs.
There is no movement made by the leaf. The dolphin swims with the assistance of its tail, which is moved up and down and in other directions. It is not used to move the apple. The wolf's eye is for sight alone, not for movement.
Thus, the correct option is B. the tail fin of the fish.
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What would Iraq have to do in order to reach a zero growth rate? What kinds of challenges might the Iraqi government face in trying to implement these measures?
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.
Which of the following is NOT an important function of proteins
1. structure
2. enzymes
3. energy
4. hormones
Answer:
2. enzymes
Explanation:
enzymes are proteins made up of amino acids and acts as a biological catalyst in our body but however, glucose serves as the purpose of energy provider for metabolism which is not a proteinExplain the function of the cell membrane in both plants and animal cells.
Answer:
The cell membrane is permeable to small solutes to let them easily diffuse in and out of the cells.
what are the similarities between dog and lion in the parts involved in taking food
If after studying a population for a trait determined by a single pair of alleles you fi nd that the population is not in equilibrium, what possible reasons might explain the lack of equilibrium
Answer and Explanation:
The criteria for maintaining a Hardy-Weinberg equilibrium are:
Random matings: mating probabilities between individuals with determined genotypes depends on the products of frequencies of those genotypes. No superposed generations: each individual can leave their gametes in the pool only once. No mutations: There is no incorporation into the genetic pool of new gametes originated by mutation of preexistent alleles. No migration: There is no incorporation of gametes originated in another population. Infinite population size: the probabilities of randomly taking an A gamete from the pool are p and the probabilities of taking a B gamete from the pool are q. No natural selection: Each individual has the same surviving and reproducing probabilities as any other, contributing proportionally to the gamete pool.If one of these points does not carry out, then the population under study is not in equilibrium.
If endogamy or exogamy occurs affecting random mating, If genetic drift is going on, the population is not infinite-sized and there are no random matings,If there exist genetic flux, which means that the population is not closed and migration occurs, If natural selection is acting over the population, If there occur mutations,Then the observed allelic and genotypic frequencies are different from the expected ones if the population under study was in H-W equilibrium.
what are antibiotics in brief
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
To enhance oral and written presentations, scientists often use?
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.
What are the components of the presentation?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
What is the conversion factor from km to ft? If Joe traveled 12 kilometers, how many feet did he travel?
Answer:
39372 ft
Explanation:
Since 3281ft=1 km...
12×3281= 39372All the radiation absorbed in the Earth's atmosphere is absorbed in the stratosphere.
Please select the best answer from the choices provided
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Submit
Answer:
False
Explanation:
I literally got it wrong on the quiz
Answer:
The answer is false
Explanation:
i took the test
Fiddler crabs are invertebrates. That means they do not have a backbone (that's made out of vertebrae). Does this mean they don't have a skeleton?
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.
Which temperature scale was used if your body temperature was 37 degrees?
A. Kelvin
B. Fahrenheit
C. Newton
D. Celsius
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.
water is a polar molecule
Yes, water is a polar molecule because the Electrons are NOT shared EQUALLY
Answer:
Yes
Explanation:
Water is a polar molecule. Hope this helps.
People who study the effects of human activities on Earth’s land, air, water, and living things are a. astronomers. b. environmental scientists. c. meteorologists. d. oceanographers. Please select the best answer from the choices provided A B C D
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
What is an Stereoisomer
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 .
What is the main transformation that occurs during glycolysis?
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.
Thomas A. Edison, famous for his invention of the light bulb, once said “I have not failed. I’ve just found 10,000 ways that won’t work.” What does this mean to you? Why is this a good way to describe science
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:
Outline and describe the steps in the process represented in this diagram
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.
Based on your knowledge of flood-prone areas, where would similar technology be useful in the United States?
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.
pls help me woth this answer ty
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.
grasses and clovers make their own food through the process of?
Chemosynthesis
Decomposition
Photosynthesis
Regurgitation
Answer:
Photosynthesis
Explanation:
Hope this helps you ☺️
If yes then do mark my answer as brainliest
how is the scientific thory developed
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.
This type of biomolecule is responsible for numerous cellular functions including increasing reactions, providing structure for healing, antibodies to fight infection and aiding in transport of substances and sending signals to cells. What is the name of this biomolecule?
Answer:
Proteins
Explanation:
Biomolecules are any organic molecule, meaning they contain carbon and they are produced by cells in living organisms, and they generally aid in the functioning of that living cell. The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins.
Proteins are large biomolecules, as they are also macromolecules.
Proteins are responsible for cellular functions and regulation of the body's tissues and organs.
When we talk about providing structure for healing, then proteins fit perfectly as collagen works on quick healing while immunoglobulin is an example of a protein that fights of harmful organisms.
Ferritin, Hemoglobin is an example of a protein that transports essential molecules from one part of the body to a target organ or destination.
Insulin for example is a protein that sends signals to target organs and is considered very important.
Look at the image above. How did endosymbiosis impact the structural differences between bacteria, animals, plants, and fungi? CLAIM: EVIDENCE: REASONING:
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.
What is one resource you use on a school project
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.
How does a virus get into the cell?
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.