Why do we need sleep? (scientific answer pls)

Answers

Answer 1

Answer:

Sleep is an essential function that allows your body and mind to recharge, leaving you refreshed and alert when you wake up.


Related Questions

Can someone please help me please

Answers

Answer:

I think so answer is D

Explanation:

I hope it helps you

Pl Mark brainlist answer

Project: Earths layers

Answers

Answer:

here hope helps

Explanation:

When you buy strawberry why does "TASTE" matter? Please helppp

Answers

Taste matters because you have to enjoy the strawberry when you eat it. Unripen strawberries are very sour and are not appealing to taste. You would have a difficult time eating a sour or rotten strawberry. That is why taste matters.

Explain why society has been developing different renewable resources in favor of
nonrenewable resources in the past few decades.

Answers

Answer: Society has been developing different renewable resources in favor of nonrenewable sources in the past decades because natural gas and oil has been used to much that we are running out of nonrenewable sources. So society has been trying to use solar panels, wind panels, and water.  

Explanation:

HELP ME PLS
Only a few natural elements have a greater density than gold. They are: ??


15 POINTS AND BRAINLIEST FOR CORRECT ANSWERS!!!

Answers

Plutonium

Neptunium

osmium

let me know if it's correct or not, these were the only ones I could think of.

Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.

What is an element?

An element is define as a type of substance that is impossible to  break into smaller pieces by the help of chemical process. There are several rules that should be followed at the time of assinging name of the elements. The first rule is name of the element is not a proper noun. The second rule is the symbols of the element that must be of one or more than one symbol.

Density is define as the mass per unit volume it means that 1 kg mass present in 1 meter cube is called density, density is also states that the how compact an material.

Mathematically

Density = mass/volume

S.I unit of density is kg/m^3

Density is higher in solid as compare to liquid and density of liquid is higher than gas so density is in order of SOLID>LIQUID>GAS. So we know that solid is compact in nature as compare to liquid and gas.

Therefore, Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.

Learn more about element here:

https://brainly.com/question/13025901

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What is involuntary muscle​

Answers

Answer:

involuntary muscles can be defined as the muscles that functions or contracts without conscious control and are controlled by the autonomic nervous system.

Answer:

involuntary: A muscle movement not under conscious control e.g. the beating of the heart.

Which of the following is a true
statement about queen ants?

a. They have shorter lifespans than other types of ants.
b. They are the only females that live in ant colonies.
c. They are the only types of ants that can lay eggs.
d. They are the only ants that protect defenseless
larvae.

Answers

Answer:

c. They are the only types of ants that can lay eggs.

why do all the planets in the solar system orbit the sun in the same direction ?

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Answer:

The result of the initial rotation of the cloud of gas and dust that condensed to form the Sun and planets. As gravity condensed the clouds, of angular momentum increased the rotational speed and flattened the cloud out into a disk.

What are the answers for questions 4 and 5?

Answers

Answer:

4. D (enzymes 1 and 3 works equally well in an acidic and alkaline environment respectively)

5. C. 2; 7; 9.5

Explanation:

The image attached to this question shows a graphical representation of the pH ranges for three enzymes. According to the image;

- Enzyme 1 reached its peak reaction rate at pH 2 (acidic)

- Enzyme 2 reached its peak reaction rate at pH 7 (neutral)

- Enzyme 3 reached its peak reaction rate at pH 9.5 (basic)

This result means that enzymes 1, 2 and 3 will work well and effectively at an acidic, neutral and alkaline environment respectively. Likewise, the optimal pH level for enzymes 1, 2 and 3 are 2; 7; and 9.5 respectively.

What is the the process responsible for the synthesis of proteins and mention the cellular structure where the genetic program responsible for this synthesis is located.

Answers

Answer: Translation

Explanation:

During the transcription the double stranded DNA act as a separate template  strand to produce mRNA molecule. The mRNA molecule encode for amino acid chain that collectively forms the protein. The ribosomes are the sites of protein synthesis the mRNA get attached to the ribosome. Within the ribosome the rRNA molecule instruct the catalytic steps for the synthesis of protein. The amino acid sequence or chain gets stitched together to form the protein.

Hello can someone help?
Im confused

Answers

Answer:

Maybe B

Explanation:

Hi! I'm not sure... If you want to take the risk, go ahead... But IF it's correct pls mark me the brainliest

Hydrophobic interactions are the basis for Sudan tests. Explain how hydrocarbons in lipids interact with polar surroundings

Answers

Answer and Explanation:

Lipids are non-polar molecules, so they do not interact preferentially with polar molecules but they can interact with each other. In a polar medium, such as water, the hydrocarbons in lipids aggregate each other, in order to minimize contact with surrounding polar molecules. The interaction between non-polar solutes with polar surroundings exclusion is called hydrophobic interaction.

What determines the code, or information, of a DNA molecule?

A - the structure of nitrogen bases

B- the color of nitrogen bases

C- The sequence (order) of nitrogen bases

D- the frequency of nitrogen bases

Answers

Answer:

C- The sequence (order) of nitrogen bases

Explanation:

Three things can happen at the boundaries between earths plates. If one plate moves underneath another it’s called a

Answers

Answer:

I believe it is called SUBDUCTION.

Earth's plates are called TECTONIC PLATES BTW

(GIVING BRAINLIEST!!)

Which component of weather describes the weight of the atmosphere pressing down on Earth?

A) Air pressure
B) Air temperature
C) Precipitation
D) Wind direction

Answers

Answer:

A - Air Pressure

Answer:

Answer is A

Explanation:

Air pressure is the pressure of the atmosphere on the earth.

3. What might happen to the ecosystem if this population were removed?

Answers

Answer:

More predators kill more prey, which, along with food scarcity, decreases the population.

Explanation:

Answer: ''Population Explosions The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ''

Explanation:

In living things, cells must be in a _____________________ solution where water leaves and enters the cell at _________________________________________.

Answers

Answer:

isotonic; the same rate

Explanation:

Cell Theory as as commonly known gives the best definition for cells. All organisms that ever existed are made up of one or more cells. The theory state that the cell is a basic unit, that is of all living things, and that all cells come from cells that have existed.

For cell that is in an isotonic solution,no net flow of water into or out of the cell will be experienced, the volume of the cell is at a state of stability. When the level or concentration of solute in and out of the cell is at the same pace or level, the the cell membrane does not allow solutes to cross, leading to the solution being isotonic to the cell.

Need help on this *URGENT*

Answers

answer : divergent - the arrows show that the plates are moving apart.

What is the Plate Tectonics Theory?

Answers

Answer:

The plate tectonics theory is that there are PLATES covering the earth's surface. This theory also says that they may cause earthquakes and cause volcanos to form!

Have a wonderful day!

PLS HELP ILL MARK BRAILIEST
Spend one minute writing an explanation of
the FUNCTION of enzymes. YOU MUST USE
THE WORDS CATALYST, ACTIVATION
ENERGY, RECYCLABLE

Answers

Like all catalysts, enzymes work by lowering the activation energy of chemical reactions. Activation energy is the energy needed to start a chemical reaction. This is illustrated in Figure below. The biochemical reaction shown in the figure requires about three times as much activation energy without the enzyme as it does with the enzyme.

The reaction represented by this graph is a combustion reaction involving the reactants glucose (C6H12O6) and oxygen (O2). The products of the reaction are carbon dioxide (CO2) and water (H2O). Energy is also released during the reaction. The enzyme speeds up the reaction by lowering the activation energy needed for the reaction to start. Compare the activation energy with and without the enzyme

Answer:

Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.

What is the function of an enzyme? They allow chemical reactions to occur at normal body temperature fast enough to sustain life. They reduce the activation energy needed to start a chemical reaction.

There are four steps in the process of an enzyme working. (1) An enzyme and a SUBSTRATE are in the same area. The substrate is the biological molecule that the enzyme will work on. (2) The enzyme grabs onto the substrate with a special area called the ACTIVE SITE.

There are four steps in the process of an enzyme working. (1) An enzyme and a SUBSTRATE are in the same area. The substrate is the biological molecule that the enzyme will work on. (2) The enzyme grabs onto the substrate with a special area called the ACTIVE SITE.

Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.

A small primate is observed in South America. It has a prehensile tail, spends most of its time in the trees, and is fairly small. What type of primate is it? HighLighter PopupUnderline Selected TextGreen Color HighlightOrange Color HighlightYellow Color HighlightBlue Color HighlightPink Color HighlightRemove Color Highlight A. Lemur B. Tarsier C. New World monkey D. Old World monkey

Answers

Answer:

C

Explanation:yeah

The correct answer is New World monkey as is observed in South America. It has a prehensile tail, spends most of its time in the trees, and is fairly small.

On one hand, a few species of New World monkeys own prehensile tails, which means they are able to use their tails to understand or maintain directly to objects (2). Their tails can resource those monkeys in locating and consuming meals withinside the cover in addition to transferring among the trees, as their tails offer greater help and balance.

The formal time period for the taxonomic organization containing all of the New World Monkeys (NWMs) is Platyrrhini. The NWMs diverged from the Old World monkeys and apes (Catarrhini) round forty million years ago (Perelman et al. 2011). Ancestral species are idea to have migrated to the Americas on rafts of plants or through island hopping (Fleagle 2013). The extant species of NWMs are presently labeled into 5 families, twenty genera, 156 species, and 204 taxa. However, the taxonomy of numerous taxa is debated withinside the literature and, therefore, this type is concern to change.

What is the New World monkey living area?

Many of the monkeys scampering across the forests of Central and South America have some thing unique on their butts-- a further hand. Well, now no longer exactly. It's a prehensile tail-- a greedy appendage that enables the animals navigate the tall and treacherous cover on the lookout for end result and leaves .

Hence concluded that the New World monkey have a prehensile tail, spends most of its time in the trees, and is fairly small.

To know more about primates refer to the link :

https://brainly.com/question/21493330

If the amount of CO2 in the atmosphere increases, do we expect to record an increase or decrease in the pH of the ocean? Why?

Answers

Answer:

As the atmospheric concentration of carbon dioxide above water increases, the acidity of the water will increase causing the pH to decrease.

The diploid cells of a radish plant contain 18 chromosomes. How many chromosomes are in a radish plant's haploid cells?

Answers

Answer:

9

Explanation:

The diploid chromosome number for a radish is 18 and the diploid chromosome number for cabbage is also 18. The haploid number for these species is nine. Therefore, the gametes of the radish and cabbage contain nine chromosomes.

air passes from the nose into the bronchi true or false?

Answers

Answer:

True

Explanation:

The right lung has 3 sections called lobes and is a little larger than the left lung, which has 2 lobes. The bronchial tubes divide into smaller air passages called bronchi. The functioning of the lungs is discussed in detail.

What are Hox genes?
A. genes that can produce large changes in adult animals during the embryological development
B. genes that are most often used to calculate a molecular clock
C. genes that have never gone through the process of crossing over
D. duplicate genes that are always responsible for speciation​

Answers

Answer:

a

Explanation:

I haven't heard of them

Answer:

A.

Explanation:

Hox genes encode and correct positions of body structures making sure they form in the correct places in the body.

In which soil horizon do we find organic material?

Answers

Answer:

We can find organic material in

Top soil

Hope it will help :)

PLS HELP IM TIMED!!
Fish eggs that are fertilized externally are typically clustered and covered in a thick, jelly-like substance.
What is most likely the function of this substance?
a) to protect the eggs and keep them consistently warm inside the parent's body
b) to protect the eggs and keep them safe from any harmful environmental conditions
c) to ensure that only a few of the eggs are fertilized by sperm since external fertilization is uncommon and risky
d) to ensure that only some of the eggs are fertilized by sperm so others can be fertilized internally

Answers

Answer:

Don't get me wrong but I think it's B

Explanation:

Answer:

The correct answer is B: to protect the eggs and keep them consistently warm inside the parent's body.      It is correct on edge

Explanation:

Hope this helps and good luck:)

The effect of disorder of checkpoints proteins and cell cycle regulation
I need help!!!!!!???

Answers

Answer:

LEARNING OBJECTIVES

Identify important checkpoints in cell division

Explain how errors in cell division are related to cancer

The length of the cell cycle is highly variable, even within the cells of a single organism. In humans, the frequency of cell turnover ranges from a few hours in early embryonic development, to an average of two to five days for epithelial cells, and to an entire human lifetime spent in G0 by specialized cells, such as cortical neurons or cardiac muscle cells. There is also variation in the time that a cell spends in each phase of the cell cycle. When fast-dividing mammalian cells are grown in culture (outside the body under optimal growing conditions), the length of the cycle is about 24 hours. In rapidly dividing human cells with a 24-hour cell cycle, the G1 phase lasts approximately nine hours, the S phase lasts 10 hours, the G2 phase lasts about four and one-half hours, and the M phase lasts approximately one-half hour. In early embryos of fruit flies, the cell cycle is completed in about eight minutes. The timing of events in the cell cycle is controlled by mechanisms that are both internal and external to the cell.

Explanation:

Regulation of the Cell Cycle by External Events

Both the initiation and inhibition of cell division are triggered by events external to the cell when it is about to begin the replication process. An event may be as simple as the death of a nearby cell or as sweeping as the release of growth-promoting hormones, such as human growth hormone (HGH). A lack of HGH can inhibit cell division, resulting in dwarfism, whereas too much HGH can result in gigantism. Crowding of cells can also inhibit cell division. Another factor that can initiate cell division is the size of the cell; as a cell grows, it becomes inefficient due to its decreasing surface-to-volume ratio. The solution to this problem is to divide.

Whatever the source of the message, the cell receives the signal, and a series of events within the cell allows it to proceed into interphase. Moving forward from this initiation point, every parameter required during each cell cycle phase must be met or the cycle cannot progress.

Regulation at Internal Checkpoints

It is essential that the daughter cells produced be exact duplicates of the parent cell. Mistakes in the duplication or distribution of the chromosomes lead to mutations that may be passed forward to every new cell produced from an abnormal cell. To prevent a compromised cell from continuing to divide, there are internal control mechanisms that operate at three main cell cycle checkpoints. A checkpoint is one of several points in the eukaryotic cell cycle at which the progression of a cell to the next stage in the cycle can be halted until conditions are favorable. These checkpoints occur near the end of G1, at the G2/M transition, and during metaphase

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what do u mean by being sick ?​

Answers

Answer:

umm that I don't feel good

Answer:

don't know what you mean... but having an infection, virus, disease, or general illness...?

Explanation:

Hope this helped! Good luck! :)

is ecosystem generally stable; how is that possible?

Answers

Answer:

Citation: Cleland, E. E. (2011) Biodiversity and Ecosystem Stability. ... traits, and species that share similar suites of traits are often categorized together into ... Biologically diverse communities are also more likely to contain species that confer

Explanation:

Other Questions
using the acronym say no to drugs, make a sentence about breaking the myths and misconceptions about drugsSAYNOTODRUGS Click on the item below that contains a comma splice. A. Martin Luther was born in Eisleben, Germany, about 110 kilometers from the church in Wittenberg where he nailed his ninety-five theses to the door. B. Martin Luther was born in Eisleben, Germany; about 110 kilometers from there is Wittenberg, where he nailed his ninety-five theses to the door. C. Martin Luther was born in Eisleben, Germany, about 110 kilometers from there is Wittenberg, where he nailed his ninety-five theses to the door. 1. (-13.8) and (3, 12) What's the difference between 1st degree murder, 2nd degree murder, and 3rd degree murder?PLEASE ANSWER I'LL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Change the verb into its noun form. Be sure to type the complete word, not just the suffix. rely_____ The most recent financial statements for Live Co. are shown here: Income StatementBalance Sheet Sales$4,800 Current assets$5,102 Debt$10,201 Costs3,168 Fixed assets12,491 Equity7,392 Taxable income$1,632 Total$17,593 Total$17,593 Taxes (34%)555 Net income$1,077 Assets and costs are proportional to sales. Debt and equity are not. The company maintains a constant 30 percent dividend payout ratio. No external equity financing is possible.Required:What is the internal growth rate?A. 4.48%B. 4.58%C. 4.38%D. 11.36%E. 1.87% PLEASE HELP WITH THIS, IMAGE ATTACHED. PLEASE ANSWER THIS QUESTION RIGHT.Consent is an active agreement between participants that helps establishmutual boundaries for behaviors.TRUE OR FALSE What is the weight of a 44.5 kg object? what is Trig Beacon? Read the excerpt from The Land by Mildred Taylor,Which transition would best replace the word but in thisexcerpt?So I went to my sister, Cassie, about Mitchell. Now, mysister was a beautiful girl and I knew even Mitchell hadeyes for her. But Cassie was not only beautiful, she wastough, smart, and just a bit cocky. She was six yearsolder than I was and pretty much like a mother hen whenit came to me, I knew she'd take my part. "Cassie, youknow 'bout Mitchell?" I asked her.althoughO similarlyO howeverin the same way Describe how knowing the column (group) number is a "cheat code" for determining the number and types of bonds that an element can form. **PLS HELP DUE SOON**The Garden Club is planting fruit trees in their schools garden. There is one large tree that needs 5 pounds of fertilizer. The rest are newly planted trees that need 1/2 fertilizer each.A. 25x + 5 B. x + 5 25C. x + 25 5D. 5x + 25 On a triangle, one side measures 4x22x and another side measures 2x2 5x+1. If the perimeter of the triangle is 9x2 + x+6, what is the measure of the third side of the triangle? (Your answer will be an expression) Identify the indefinite pronoun in blank 1 and choose the correct verb in blank 2. The verb is in parenthesis. No one (have, has) to say good-bye to the city. Blank 1: Blank 2: 3. If an engine exerts 250N of force and moves an object 6.0 meters, how much work did it do? 06(1 Point)O 0.024 JC42 JO 41.6 JO 1500 J broooooooo help me wit this plzz man A piece of fabric is 2 yards long. The fabric is cut into 24 pieces of equal length.How long is each piece?2 inches3 inches4 inches6 inches ano ang itinuturing bilang kaluluwa ng isang kultura Which of the following is equal to this expression? (25664)^1/4