Which elements make up a water molecule?
hydrogen and nitrogen
oxygen and nitrogen
oxygen and carbon.
hydrogen and oxygen

Answers

Answer 1
Hydrogen and oxygen
Answer 2

Answer:

Hydrogen and Oxygen: The liquid condition of H2O at standard pressure and temperature is referred to as "water."

Explanation:

The polar chemical component and molecule known as water is a liquid at normal pressures and temperatures. According to its chemical composition, each molecule of water has one oxygen atom and two hydrogen atoms. Due to their polarity, water molecules can form up to four hydrogen bonds with molecules close by, regardless of whether they are in a liquid or solid state. Hydrogen bonds are roughly ten times stronger than the Van der Waals force, which attracts molecules to one another in most liquids. This explains why water has far higher melting and boiling points than other compounds that are analogous to it, including hydrogen sulfide.

 Water contains numerous distinctive biological characteristics that are essential for the growth of life. It does this function by enabling organic chemicals to interact in ways that eventually permit replication. Water is essential to all known kinds of life. Water is crucial for many bodily metabolic processes as well as serving as a solvent in which many of the body's solutes dissolve. Anabolism and catabolism together make up metabolism.

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Related Questions

Which means of particle transport is shown in the figure below?
Answer
A diffusion
B) osmosis
C) active transport
D facilitated diffusion

Answers

Therefore, D, which stands for facilitated diffusion, will be the answer to this issue. Thus, one transport protein carries the molecules from across the membrane during assisted diffusion.

Active transport is affected by what particles?

The process that includes the of pumping molecules and ions across membranes in “uphill” direction – against a concentration gradient – is known as active transport.

Transport proteins that are present in the membrane are typically responsible for the active transport of small molecules or ions across a cell membrane.

Do you mean active or passive aided diffusion?

Passive transport can be said as a subset of facilitated diffusion.

Because the solution is going down the concentration gradient, assisted diffusion is still passive transport and when it incorporates transport proteins. The cell can easily disperse small nonpolar compounds.

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How do the muscular and skeletal systems work together to make the human body move? A. They provide nutrients to the body B. They provide oxygen and carbon dioxide to the body C. The provide blood to the body D. They provide structure and movement to the body

Answers

The muscular and skeletal systems work together to make the human body move as: D. They provide structure and movement to the body.

The muscular and skeletal system is also known as the musculoskeletal system. The bones of our skeletal system work on protecting the body's organs, support the weight of our body and provides shape to our body. The muscles of the muscular system which are attached to these bones, pull on them to allow the movement of the body.

The muscles in our body can pull the bones, but they can't push them back to their original position. Therefore, they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint. After the movement is complete, the flexor relaxes and the extensor contracts to straighten the limb at the same joint.

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How do O2 levels change during the day?

Answers

Your SpO2 may fluctuate during the day, especially when going from a low-energy state to a high-energy state. These variations, your SpO2 remains within a reasonable range, therefore there is no need for alarm.

Why are oxygen levels important?

Similar to a person's blood pressure or body temperature, many people believe that an individual's oxygen level is a crucial indicator of how well their body is functioning. According to their doctor's instructions, people with lung or heart conditions can use a pulse oximeter at home to monitor their health.

What happen when oxygen level is low?

You may experience headache, disorientation, or restlessness when your blood oxygen level drops below a specific point. Anemia is one of the typical causes of hypoxemia. (Acute respiratory distress syndrome)

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Regular exercise reduces the risk for cardiovascular diseases by
Group of answer choices

thinning the blood.

increasing flexibility.

decreasing lung capacity.

strengthening the heart muscle.

Answers

D strengthening the head muscle

Regular exercise reduces the risk of cardiovascular diseases by strengthening the heart muscles. So the correct option is D.

What are the benefits of regular exercise?

One of the most crucial things you can do for your health is to exercise regularly. Physical activity may strengthen your bones and muscles, help you maintain a healthy weight, increase your ability to carry out daily tasks and improve your cognitive health.

Adults who spend less time sitting and engage in any level of moderate-to-vigorous exercise reap some health advantages. Physical activity has a greater influence on your health than very few other lifestyle decisions.

Physical activity has health advantages for everyone; age, ability, ethnicity, form, or size are irrelevant. Following a session of moderate-to-vigorous exercise, physical activity has some positive effects on brain health. Children aged 6 to 13 will experience better thinking or cognition and adults will have less transient anxiety.

As you age, staying physically active on a regular basis might help keep your thinking, learning, and judgment abilities sharp. Additionally, it can improve your quality of sleep and lower your risk of anxiety and sadness.

Therefore the correct option is D.

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pls help i dont get it

Smithers thinks that a special juice will increase the productivity of two groups of
50 workers. He creates two groups of 50 workers each and assigns each group
the same task (in this case, they're supposed to staple a set of papers). Group A is
given the special juice to drink while they work. Group B is not given the special
juice. After an hour, Smithers counts how many stacks of papers each group has
made. Group A made 1,587 stacks, Group B made 2,113 stacks.
Use this scenario to answer questions 1-4

1. Identify the control group
A: Group A
B: Group B
C: There is no control group

2. Identify the independent variable

a: Amount of pages stapled
b: Special Juice
c: Stapler

3. Identify the dependent variable*

a: Special Juice

b: Stapler

c: Amount of pages stapled

4. What should Smithers conclusion be?


a: Group A made 1,587 stacks and Group B made 2,113 stacks of paper therefore the special drink DID work

b :There isn't enough evidence to make a conclusion

c: Group A made 1,587 stacks and Group B made 2,113 stacks of paper therefore the special drink DID NOT work​

Answers

Answer:

bbcc

Explanation:

1.)Group B wasn't given anything to effect their productivity.

2.)The special juice is not effected by other factors.

3.)The amount of pages stapled is directly affected by the special juice variable

4.)The point of the special juice was to increase productivity, since the group with the special juice was less productive than the group without it the special juice failed.

1.Photosynthesis and cellular respiration are often described in two ways: (1) they are chemically opposite; and (2) they have a relationship to each other. Explain what these two statements mean. Be sure to include the specific substances used and released by each process.Answer:I need help writing a simple and original answer.

Answers

They are chemically opposite, since one (photosynthesis) implies an anabolic metabolism. It produces sugar, from atmospheric CO2. While respiration is a catabolic process, it takes this sugar and oxidizes until it creates CO2, ¡the very essential ingredient photosynthsis needs! So, to sum up, while photosynthesis creates sugar, respiration consumes it. This has a deeper physiological meaning, because both process happen at the same time, they could be view as a worldwide ecosystemical gas atmospheric regulation. Some organisms produce sugar and release Oxygen (photosynthesis products), while others consume sugar and release CO2 (non photosynthetic organisms). Note that plants, are also capable of repiration (that is, C02 release) but this occurs at lesser extent than in animals.

The bicoid gene product is normally localized to the anterior end of the embryo. If large amounts of the product were injected into the posterior end as well, which of the following would occur?


Anterior structures would form in both sides of the embryo.

The embryo would grow to an unusually large size.

The embryo would probably show no anterior development and die.

The embryo would grow extra wings and legs.

Answers

If large amounts of the product were injected into the posterior end as well, the option that would occur is option A:  Anterior structures would form in both sides of the embryo.

What happens to an embryo with a mutated bicoid gene?

The Head and thorax are said to be absent from female embryos with a bicoid mutation, and they are known to have been replaced by a posterior telson as stated by Fröhnhofer in 1986.

Noe that  At the blastoderm stage, ems and btd expression are reduced and shifted anteriorly in embryos missing both maternal and zygotic HB.

Since it allowed animals to move unidirectionally, the anterior-posterior (AP) axis was the first embryonic axis to emerge in evolutionary time.

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1) Why does it pay to buy fire insurance for your home even though
you may never have a fire?

Answers

Answer:

because what if u had a fire at ur home bro :)

The element which forms the backbone of all organic molecules is: PLEASE HELPPPP

Answers

Answer: Organic chemistry based on compounds in which  (Carbon) is a central element. The properties of carbon make it the backbone of the organic molecules which form

Explanation: The fundamental component for all of these macromolecules is carbon. The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.

Answer: Carbon

Explanation:

which system is responsible for beathing

Answers

respiratory system is the answer for your question

Hugo was asked to diagram sentences for his English class when he comes across the prefix “pre.” What is a prefix an example of what?

A.
phrase

B.
phoneme

C.
morpheme

D.
language protocol

Answers

Prefix an example of the phrase.

Prefixes are usually added directly to the base word, but there are some cases where a hyphen is required. When adding prefixes to proper nouns or numbers, hyphenate the word. Split words when adding the prefix ex. This means before. An affix added to the beginning of a word, base, or sentence that helps generate derivations or inflections. Compare with suffix. A title that precedes a person's name.

A prefix is ​​a group of characters or affixes added to the beginning of a word. A prefix changes the meaning of a word. You can negate a word, indicate repetition, or hint at an opinion. When adding a prefix to a word, do not change the spelling of the original word or prefix. A prefix is ​​a letter or group of letters that you add to the beginning of a word. Prefixes change the meaning of words.

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How old is Earth and when did the oxygen revolution occur?

Answers

Earth is 4.54/4.543 billion years old and the oxygen revolution was 2,300 million years go

What are your thoughts on psychoneuroimmunology?

Answers

Answer:

Psychoneuroimmunology is the study of how your immune system and your central nervous system interact. Psychological stress makes you more susceptible to everything from the common cold to flare-ups of autoimmune diseases.

a representation of an object , system , or process is called?

Answers

A representation of an object, system, or process is called a model.

A model is a representation of an idea object or even process or system used to describe and explain phenomena that cannot be directly experienced. Models are central to the work of scientists both in research and in communicating explanations.

Scientific models are used to describe and predict the behavior of real-world objects and systems and are used in many scientific disciplines from physics and chemistry to ecology and earth sciences. The main types of scientific models are visual models, mathematical models, and computer models. A model of the movement of the sun moon and earth that I participated in last year. A model for predicting solar eclipses. Models that describe weather phenomena can be used for weather forecasting.

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Denise was measuring the effect of temperature on the amount of dissolved oxygen that water can hold. She hypothesized that as water temperature increases, the amount of oxygen that is dissolved in water increases. Her data are shown in the table below.

Answers

The conclusion that Denise is most likely to write in her lab report is as follows: the data did not support the hypothesis because the amount of dissolved oxygen decreased as water temperature increased (option A).

What is a hypothesis?

Hypothesis in an investigation is the tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation.

According to this question, Denise was performing an experiment on the effect of temperature has on the amount of dissolved oxygen that water can hold.

She then constructs an hypothesis as follows: "water temperature increases, the amount of oxygen that is dissolved in water increases"

However, the data given in the results showed that as temperature increases, the amount of dissolved oxygen decreases. Therefore, it can be said that Denise's data did not support her hypothesis.

The complete question is as follows:

Which conclusion did Denise most likely write in her lab report?

The data did not support the hypothesis because the amount of dissolved oxygen decreased as water temperature increased

The data did not support the hypothesis because the amount of dissolved oxygen increased as water temperature increased

The data supported the hypothesis because the amount of dissolved oxygen decreased as water temperature increased

The data supported the hypothesis because the amount of dissolved oxygen increased as water temperature decreased

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Q1. In a sound wave what is a region of high pressure known as?

Q2.Name a wave that does not need a material to travel

Q3.Why does sound travel faster in solids as compared to liquids and faster in liquid as compared to gases?

Answers

Answer:

1. In a sound wave what is a region of high pressure known as?

These regions are known as compressions and rarefactions respectively. The compressions are regions of high air pressure while the rarefactions are regions of low air pressure.

2. Name a wave that does not need a material to travel

An electromagnetic wave can travel through anything - be it air, a solid material or vacuum. It does not need a medium to propagate or travel from one place to another.

3. Why does sound travel faster in solids as compared to liquids and faster in liquid as compared to gases?

This is because the molecules of solids are more tightly packed together than in liquids and those in liquids are more tightly packed than in gases. Vibrating effects are more easily passed on from one molecule to the next when they are in close proximity.

Explanation:

Hope it helps! =D

question is in the image provided

Answers

Answer:  The correct answer is B. ADP + P -->  ATP

Explanation:   ADP is combined with a phosphate to form ATP in the reaction ADP+Pi+free energy→ATP+H2O.

"'Pardon, O King,' cried the little Mouse: 'forgive me this time, I shall never forget it: who knows but what I may be able to do you a turn some of these days?' The Lion was so tickled at the idea of the Mouse being able to help him, that he lifted up his paw and let him go." (paragraph 31)

What does the word tickled suggest about the Lion?
A
He is amused by the Mouse's offer to help him.
B
He is interested in the Mouse's ability to bargain.
C
He is pleased by feeling the Mouse under his paw.
D
He is very happy about the Mouse's request for help.

Answers

Answer:

the answer is B

Explanation:

"The lion was so tickled at the idea of the mouse being able to help him " We can see that the lions is amused cuz here it says "at the idea of the mouse being able to help him" so he is actually Abt it

What is the process of weighing the pros and cons of different alternatives and making a choice?

A.
problem solving

B.
analogical reasoning

C.
decision making

D.
mental simulations

Answers

The process of weighing the pros and cons of different alternatives and making a choice is decision-making. Option C.

Decision-making is the process of making decisions by identifying decisions, gathering information, and evaluating alternative solutions. A step-by-step decision-making process helps you make more conscious and thoughtful decisions by organizing relevant information and defining alternatives.

Quantification options help you review your decisions. Record the potential benefits of your approach in the Pros column and potential negative outcomes in the Cons column. Then evaluate the strengths and weaknesses to show the importance of each. Considering the worst-case scenarios and possible issues with each decision is a good way to understand the strengths and weaknesses of different decisions.

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What has become the biggest
threat to biodiversity?
A. limited resources
C. habitat loss
B. extinction
D. pollution

Answers

Answer:

Extinction has become the biggest threat to biodiversity

Answer :option c habitat loss
Explanation : The biggest threat to biodiversity to date has been the way humans have reshaped natural habitats to make way for farmland, or to obtain natural resources, but as climate change worsens it will have a growing impact on ecosystems.

name three important factors that can effect the rate of photosynthesis

Answers

light intensity, carbon dioxide concentration and temperature.

Answer:

light intensity, carbon dioxide concentration and temperature.

Explanation:

The smooth ER differs from the rough ER in that:
A. The rough ER contains no ribosomes, the smooth ER contains ribosomes.
B. The smooth ER produces carbohydrates and lipids, rough ER produces proteins.
C. The smooth ER produces proteins, rough ER produces lipids.
D. The rough ER is the site of mRNA transcription, smooth ER is the site of protein translation.

Answers

Answer:

B

Explanation:

the correct answer is B. Smooth ER are found in cells that participate in liptid metabolism and detoxify the body and rough ER is involved in protein production

A cell is a system of parts that work together to carry out basic life processes. An animal is also a system of parts that work together to carry out basic life processes. Match each organ or organ system with the cell part that has a similar function.

Answers

Answer:

Nucleus - brain

cell membrane - skeletal system

mitochondria - digestive system

cell wall - skin

Explanation:

hope that helps!



The Principal of Hillside High School is concerned about the high levels of lateness and absenteeism among students. She is considering adopting either an autocratic or participatory approach to solving these issues.
Explain how the principal could use an autocratic approach to address the issues

Answers

Answer:

the principal will enforce rules on the students that practice such acts and the ones that are not following said rules the rules can be a variety of this such as :

if late or absent more that three times a semester the students will have their parents sing a paper informing that the have to come to the school and the student will have to stay in after school detention for the days that they have skipped and if they don't bring the paper to the parents, their sentence will double.

hope that helps

Decide whether the attribute describes Earth, Venus, or both Earth and Venus.
has a rocky,
experiences retrograde
experiences the
metallic composition
rotation, spinning
greenhouse effect,
clockwise as viewed
which warms the planet
from above
is the densest planet
iS located an ideal
is one of the brightest
in the solar system
distance from the
objects in the night sky,
Sun, allowing it to
sometimes mistaken
support life
for a star
Earth
Both
Venus

Answers

These describe the features of both Earth and Venus with the provided attributes that point towards a mix of attributes of both the planets.

Explain what the Earth is.

The elements of Earth are all known as land, air, water, and life. Mountains, valleys, and flat places, all these can be found on the ground. Different kinds of gases, such as nitrogen and oxygen, make up the air. Rain, snow, ice, rivers, lakes, oceans, and streams all these can be taken as all examples of water.

With a total of 50-million-year margin of error, the age of the Earth can be calculated to be as 4.54 billion years. In order to radiometrically take up and date the oldest rocks, scientists have already combed the entire planet.

Venus

The planet Venus, which orbits the Sun as its closest to Earth, is the second planet from Sun. Because this is nearly as big as Earth and along with it also shares many of its characteristics, it is frequently referred to as Earth's "twin" planet.

Distance from Sun: 108.2 million km

Radius: 6,051.8 km

Surface area: 460.2 million km²

Density: 5.24 g/cm³

Mass: 4.867 × 10^24 kg (0.815 M⊕)

Length of day: 116d 18h 0m

Orbital period: 225 days

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Complete Question

Decide whether the attribute describes Earth, Venus, or both Earth and Venus. Match the following with earth, venus, or both.

1) Has a rocky, metallic composition

2) Experiences retrograde rotation, spinning clockwise as viewed from above

3) Experiences the greenhouse effect, which warms the planet

4) Is the densest planet in the solar system

5) Is located an ideal distance from the Sun, allowing it to support life

6) Is one of the brightest objects in the night sky, sometimes mistaken for a star

Why do we eat fruit??

Answers

Answer:

It is yummy, tasty and healthy~

Explanation:

Calculate the population growth for the following scenario. Over the course of a year, a population of 25 penguins gained 5 penguins through births and lost 3 penguins to death. In addition, 10 adult penguins moved into the population through immigration and 6 adult penguins moved out of the population through emigration. What is the yearly growth rate of this population?​

Answers

Yearly growth rate is 6.

Population increases by Birth and immigration. Population decreases by   death and emigrations .so, yearly growth rate of this population from births and immigration provides the growth rate of a population over a given period of time.

Birth immigration 5+10,6+3

Yearly growth rate is 15-9=6

Population growth is the increase in the number of people in a population or dispersed group. To calculate the Population Growth (PG) we find the difference (subtract) between the initial population and the population at Time 1, then divide by the initial population and multiply by 100.

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What does the
prefix "bio" mean?

A. study of
B. biotic
C. life
D. grow

Answers

Answer:

What does bio- mean? The combining form bio– is used like a prefix meaning “life.” It is often used in scientific terms, especially in biology. The form bio– comes from Greek bíos, meaning “life.” The Latin cognate of bíos is vīta, “life,” which is the source of words such as vital.

the answer is C,Life

In total, how many CO2, ATP, NADH, and FADH2 are produced from the acetyl CoAs in the citric acid cycle?

Answer choices shown in picture

Answers

Correct answer is option (A) and (D) 2CO₂, 1ATP, 3NADH, 1FADH₂ are produced from the acetyl CoA in citric acid cycle.

The 8 steps of the citric acid cycle are a series of redox, dehydration, hydration, and decarboxylation reactions. Every flip of the cycle bureaucracy one GTP or ATP as well as three NADH molecules and one FADH2 molecule, to be able to be used in further steps of mobile breathing to provide ATP for the cell.

The citric acid cycle, the Krebs cycle or TCA cycle is a sequence of reactions occurring in the mitochondria, thru which almost all dwelling cells produce electron in aerobic respiration. It makes use of oxygen and gives out water and carbon dioxide as merchandise. here, ADP is transformed into ATP.

The citric acid cycle presents the electrons that fuel the technique of oxidative phosphorylation our primary source of ATP and energy. As the acetyl group is damaged down, electrons are saved in the carrier NADH, and added to complex I.

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1.this part of the brain controls the beating of the heart

a.spinal cord b.cerebrum c.cerebellum d.main stem

2. tiny connections or pathways in the nervous system are called ___

a.blood cells b. neurons c.brain tissues d.tiny cells sites

3. sounds enter the ear as ___

a.vibrations b.loud c.reactions d. all of these

please help me answer this questions it’s due tomorrow 7am….

Answers

3. D

Explanation:

nice

Answer:

1(the answer is the brain stem)

2(the answer is the neurons)

3(the answer is the vibrations)

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Mr. Anderson decides to visit a childhood friend. His car gives him 24.23 miles to the gallon. Mr. Anderson has 4 gallons of fuel. Which of the following is true?A: Mr. Anderson can travel 48.46 miles.B: Mr. Anderson can travel 112.92 miles.C: Mr. Anderson can travel 96.92 miles.D: Mr. Anderson can travel 80.92 miles. How would the contrustion be different if you changed the compass setting in the next step of the perpendicular bisector construction math.uh.edu lloyd's cereal company packages cereal in 1 pound boxes (16 ounces). a sample of 25 boxes is selected at random from the production line every hour, and if the average weight is less than 15 ounces, the machine is adjusted to increase the amount of cereal dispensed. if the mean for 1 hour is 1 pound and the standard deviation is 0.1 pound, what is the probability that the amount dispensed per box will have to be increased? State the slope of each line-without rewriting the equation in y = mx + b form: Why does the preamble to the Constitution discuss promoting the general welfare? Promoting the general welfare secures liberty.The common good is more important than individual interests. Promoting the general welfare is the sole purpose of government. The people of the United States asked that it be included. A hydraulic lift is used to lift a car. The small piston has a radius of 5 cm and the large piston has a radius of 50 cm. If a driver applies a force of 88 N to the small piston, what is the weight of the car the large piston can support? Name 2 contributions of Pierre and Marie Curie The area of a rectangular pool is 8217m2. If the Length of pool is 99m, what is its width In the United States, most people measure temperature in ______.CelsiusKelvinFahrenheit Research Paper Anxiety Disorders. Keep the length to 1500 with no more than 250 extra words. After taking over the Italian Peninsula, which areas did Rome conquer first?ABCD Need help for this A certain plant grows 1 1/6 inches each werk how long will it rake the plant to grow 6 1/6 inches? Please help me with this match the lettered entries in matrices a, b, and ab to their values. You buy a car that costs $24,211. The dealership is having a sale for 8% off and you have to pay 8.0% sales tax. How much will you pay? -4+8=-23+-1=help me guys Specialized sweat glands associated with the production of earwarx are known as_____ glands balance the equationS(s) + O2(g) individuals are prone to making several cognitive errors. one involves seeing one's own actions as inherently good and the actions of one's opponents as inherently evil