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

science animal cell, please help thanKS ASAP

Answers

Answer:

a (so 6)

Explanation:

I hope this is helpful :)

1. Submit your observations of the chicken leg dissection.



2. Were you able to determine how the chicken moves?



3. What characteristics of muscles help you determine the direction of the movement?

Answers

Answer:

1. Submit your observations of the chicken leg dissection.

The first thing that I saw was the skin. This one has bumps on it. Underneath, when I carefully cut it, I could see a yellow layer which is fat. Under the fat, there is a thick pink tissue, the muscles. The muscle is in contact with the bones and attached to them by the tendons. They look thin and white and are at the muscles' ends since they attach them to the bones.

2. Were you able to determine how the chicken moves?

Yes, muscles work in pairs, so when I pull from a specific tendon, the leg bends since the muscle contracts to do this movement. Then this muscle will relax, another muscle will contract itself, and a tendon will pull the bone to return the leg to a straight position.

When one of these muscles contracts, the other relaxes to allow the bone's movement in a specific direction. Then this muscle relaxes and allows the leg's movement in the opposite direction since the muscle that was lax before now is contracting itself to extend the leg. There are a flexor and an extensor muscle.

3. What characteristics of muscles help you determine the direction of the movement?

The characteristics that help me determine the movement's direction were:

The position that the muscles have concerning the joints and the bones. The tendons at the end of the muscles and bones.

By following the muscle, the tendon, and where it is in the joint, I could determine the movement's direction.

Explanation:

When we observe a chicken leg dissection, we can determine the components that it has and how all the elements work together to move the leg. Even though the mechanism and structure are not the same as in a human body, we can see how muscles, bones, tendons, and joints work not only in animals but also in humans to allow movement.

3 questions


1. Water vapor needs ____ to become rain or snow

a. humidity

b. cool air

c. dust

d. all of the above


2. water droplets fall because they are too ?

a. warm

b. cool

c. heavy

d. cold


3. snow is formed when water droplets

a. form ice crystals

b. melt slightly

c. stick together

d. all of the above


These questions are worth 25 points first one to answer CORRECTLY gets marked brainliest :) good luck

Answers

Answer:

the answers are

1) b

2)c

3) a

Water vapor needs cool air, dust particles, and humidity to become rain or snow. Thus, the correct option is D.Water droplets fall because they are too heavy. Thus, the correct option is C.Snow is formed when water droplets form ice crystals. Thus, the correct option is A.

What is Water vapor?

Water vapor may be defined as the gaseous form of water that is usually dispersed across the atmosphere with the help of wind. This state of water is significantly found in the hydrosphere.

This gaseous form of water is formed from the evaporation or boiling of liquid water or from the sublimation of ice.

Water vapor requires to combine with dust particles and cool air along with atmospheric humidity in order to produce rain or snow. Due to the combination of such compounds, water droplets become too heavy.

Snow or ice is the solid appearance of water which is usually formed from the compaction of crystallized structure.

Therefore, each of the above questions is described.

To learn more about Water vapor, refer to the link:

https://brainly.com/question/11226635

#SPJ6

PLEASE ANSWER

Which conclusion do the graphs support?

A. The faster people use trees, the higher the biodiversity.
B. Trees have little to no effect on biodiversity.
C. Deforestation leads to loss of biodiversity.
D. Biodiversity causes deforestation.

Answers

Answer:

C

Explanation:

deforestation leads to loss of biodiversity

What produces all of the light in the universe?

Answers

Answer:

Source of Light in Universe

Although the Sun doesn't light up the other stars, it does provide the daylight here on Earth; and the moon and planets we see are illuminated by that same sunlight. All stars produce light (and other kinds of energy) through nuclear reactions, using the energy stored in the tiny nucleus at the center of atoms.

Explanation:

THANKS
Source of light in the universe

What are some examples of physical evidence that support scientific theories that Earth has evolved over geologic time?

Answers

Some examples of physical evidence that supports scientific theories that earth has evolved over geologic time are the studies have have been done supporting the idea of Pangaea that all the continents were together and with time separated, if you look at a map you can see that the continents almost fits like a puzzle, of course they do not because of erosion and climate change, but it’s the closest example.

Fossils are examples of physical evidence that support scientific theories that Earth has evolved over geologic time.

What are fossils?

Fossils are the remain and traces of plants and animals that are preserved by natural processes.

Fossil shows that the former life was different from the present life.

There are three types of fossils

Replacement

impression

Trace.

Thus, fossils are physical evidence that supports scientific theories.

Learn more about fossils, here:

https://brainly.com/question/1241920

3. The ability to keep a stable internal environment is called
a. Metabolism
b. Reproduction
c. Homeostasis

Answers

Answer:

c)Homeostasis isthe ability to keep a stable internal environment is called

Answer:

C

Explanation:

Homeostasis is the maintenance of a stable internal environment. Homeostasis is a term coined to describe the physical and chemical parameters that an organism must maintain to allow proper functioning of its component cells, tissues, organs, and organ systems.

what are the advantages of using petroleum-based products?

Answers

Answer:

Petroleum is extremely easy to extract. ...

It is a high-density fuel. ...

Petroleum can be transported over long distances. ...

It provides a fuel that works with our infrastructure. ...

It can be used in a wide variety of ways. ...

Petroleum provides a stable energy resource.

What is the glucose molecules created from during photosynthesis

Answers

Answer:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.

Explanation:

can i have brainliest plz

what products of glycolysis are used in celluar respration

Answers

Answer:During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP adenosine triphosphate.

Explanation:

Describe three abiotic and three biotic components of an ocean marine ecosystem, Please Help Now!!

Answers

Answer:

Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature. Sunlight is one the most important abiotic factors for marine ecosystems

Explanation:

Answer:

Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature. Sunlight is one the most important abiotic factors for marine ecosystems

Explanation:

What is the carrying capacity of the graph?

Answers

The carrying capacity on a graph is the horizontal asymptote as X tends toward + .So you are looking at the y-value for your carrying capacity.

Lack of medical knowledge

Answers

Ah Yes the lack of medical knowledge something I have

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

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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:

1 and 2 please i dont know the answers i have more to come

Answers

Answer:

1. C.) Their cell walls contain chitin

2. C.) Chloroplast

HELPPP PLEASEE literally pleaseeeee

Answers

Answer:

high

Explanation:

you're getting too hot you are starting to sweat

In the body, red blood cells have a much shorter lifetime than cheek cells.
Use ideas about the different structure of these cells to suggest why.​

Answers

Red blood cells do not have a nucleus.
It does not consist of a cell membrane or a cytoplasm.
It simply only transports oxygen around the body.
Pls mark me brainliest:)

3. What two paths can a cell take after it has grown?​

Answers

Answer:

Explanation:In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.

Mitochondria nucleus atoms

The photograph shows solid waste pollution.
Which human lifestyle factors led to this situation? Select the three correct
responses. i’m

Answers

Answer:

A. People make things to earn a living

B. People want to buy things

D. People produce waste

Explanation:

All of the following are types of somatoform disorders except __________.
A.
conversion disorder
B.
obsessive-compulsive disorder
C.
somatization disorder
D.
hypochondrias

Answers

Answer:

B.

obsessive-compulsive disorder

Explanation:

The types of somatoform disorders does not include the obsessive-compulsive disorder.

What is somatoform disorders?

Somatic symptom disorder (SSD should be called as the somatization disorder or somatoform disorder. It is the form of mental illness that leads into one or more symptoms such as pain.

Therefore, it include the conversion disorder, somatization disorder, hypochondrias

Hence, the option b is correct.

Learn more about disorder here: https://brainly.com/question/14660486

please help me with this!!!

Answers

Answer:

okkkkkkkkkkkkkkkkkkkkkkkkkkk 23.6/0987

Explanation:

This is easy (we just learned about this 1 day ago) it’s Tropo, Strat, Meso, then Thermo

It's forensic science

Answers

Answer: Loops: 65%, whorls: 30%, and arches: 5%

Explanation:

The loops are 65% in the population, 30% are whorls and arches are 5%. The fingerprints are the patterns which include the friction ridge characteristics also called minutiae characteristics. These can be found in the soles of feet and palms of hand. At the distal end of finger the typical friction ridge pattern forms patterns like loops, whorls, arches, and composites which are patterns including two or more patterns. The loops are most common in the population the ridges emerge and end on the same side in this pattern. The loops are radial or ulnar loops depending upon the side in which pattern ends of the side of the bone thumb in case of radial and little finger in case of ulnar loop.

A couple has five children, all with blood type A. The mother's blood type is O, and the fathers blood type is A. Based on this info, what is the most probable genotype of the father?

Answers

Answer:

Homo-zygous, or AA

Explanation:

Since the mother's type is recessive O, the man's blood type A would be dominant.  And because none of the children gained B or O blood types, it is likely the father only has A.  This indicates homo-zygous (same) genotype, thus meaning his blood type is AA.

the reason for the dash between homo-zygous is because Brainly tagged it as inappropriate?

What is the difference between your biological sex and your gender identity?

Answers

Answer:

Biological or assigned sex is about biology, anatomy, and chromosomes and Gender is society's set of expectations, standards, and characteristics about how men and women are supposed to act.

Explanation:

Hope this helps!

biological sex is what gender you were born as and what's on your birth certificate. however, a persons gender identity is a persons own choice. it's what you classify yourself as and what you feel comfortable as, despite your biological sex. many people don't even identify as anything or they change their preference of pronouns. gender identity also comes with stereotypes given by the community and what they see fit for genders.

What is tendonitis?////////////////////////////////////////////////////////

Answers

A condition in which the issue connecting muscle to bone becomes inflamed.

How do you think the organisms interact with each other?

Answers

Life form that should eat or burn-through different creatures to get energy and supplements. Investigation of how living creatures connect with one another and with their current circumstance. The entirety of the living things and non-living things cooperating in a similar region. Natural or ecological territory where a specific animal categories reside.

Answer:

There are four main types of species interactions that occur between organisms in an ecosystem: Predation, parasitism and herbivory - In these interactions, one organism benefits while the other is negatively affected. * Competition - Both organisms are negatively affected in some way due to their interactions. Individual organisms live together in an ecosystem and depend on one another. Some organisms can make their own food, and other organisms have to get their food by eating other organisms. An organism that must obtain their nutrients by eating (consuming) other organisms is called a consumer, or a heterotroph.

I hoped this helped you out some~ <3

-Dream

With respect to normal base pairing, when a molecule of DNA replicates, thymine will most likely pair with 2 points

Answers

Answer: Adenine

Explanation:

The structure of the DNA double helix is complex in nature. There are two strands of DNA that are wound around each other. The nitrogenous bases are bonded with hydrogen bonding and base complementarity. According to the Chargaff's rule of base complementarity adenine always pairs with the thymine and guanine with cytosine. These nitrogenous bases are paired on the basis of hydrogen bonding. Adenine bonded with thymine through two hydrogen bonds whereas the cytosine pairs with guanine via three hydrogen bonds. During DNA denaturation these hydrogen bonds are broken whereas during DNA replication these hydrogen bonds are formed between the nitrogenous bases.

Ronald observes a sparrow's nest in a shrub outside his home. The table below describes his findings.
Week
Observations
1
Six eggs were laid in the nest.
3
Five eggs hatched, and one egg did not hatch.
One of the chicks disappeared.
7
Three of the chicks learned to fly, and another one disappeared.
What part of natural selection did Ronald observe?
adaptation
overproduction
selection
variation

Answers

Answer:

B. Overproduction

Explanation:

Overproduction is one of the main part of natural selection whereby an organism reproduces more offspring, of which only a few would be able to survive given the environmental condition amd factors that would be against the survival of the offspring to maturity.

From Ronald observation, we can see that the bird produces more eggs than would survive. Only 3 of the chicks survived.

During Protein Synthesis, mRNA is transcribed in the
built in the
and proteins are

Answers

A group of friends wants to go to the amusement park. They have no more than $95
to spend on parking and admission. Parking is $12.25, and tickets cost $17 per
person, including tax. What is the maximum number of people who can go to the
amusement park?

Answer:

protein cells.

Explanation:

protein cells with natural protein makes this an organic cell

state birth control methods according to Islam view?
please help ​

Answers

Answer:

The Qur'an does not refer to contraception explicitly, but Muslims opposed to birth control often quote the Qur'an as saying "

Explanation:

You should not kill your children for fear of want" (17:31, 6:151) and interpret this as including a ban on contraception as well as infanticide.

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Choose the probability that best matches each of the following statements: (a) This event is impossible: [ Select ] (b) This event will occur more often than not, but is not extremely likely: [ Select ] (c) This event is extremely unlikely, but it will occur once in a while in a long sequence of trials: [ Select ] (d) This event will occur for sure: [ Select ] 5 functions of the secretary of of state in the british colonial adminstration What are the 3 types of plate motion? Explain each one Write an equation of the line in slope-intercept form.22(2, 2)-224 x(0, - 2)2y =l Item 14 Write an equation of the line passing through the point (4, 3) that is perpendicular to the line 4x7y=9 Write an equation of the line that passes through the points (0, 2) and (3, 5) . English 10H 2nd semester Beginning Synthesis assignment In the weeks and months following the events of September 11, 2001, there were understandably widespread feelings of anger and rage, along with the feeling of needing payback. They were understandable because that seems to be what human beings dowe lash out at those we perceive to be our enemies, out of fear, confusion, and hatred. At the same time, there was a tangible sense on the part of many Americans that it was a time to pause and reflect on how we got to this point, and what changes could we make as a society to try and see that something like this never happened again. There was a brief feeling that maybe a window was opening for us to reexamine our role and place in the world. Sadly, those feelings didnt last long, and that window was slammed shut by the forces of normalization, the voices telling us to get back to business. 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