1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Delicious77 [7]
2 years ago
12

Science nas given humans many amazing devices and useful bits of knowledge. We know so much about our bodies and how to stay hea

lthy, for
example. We also know how to make machines and devices that make life easy for
us. Scientists dedicate their lives to knowledge, but even with a
lifetime commitment, sometimes scientists fail to find all the answers. One mystery that still remains unsolved is why
we yawn-what makes us yawn and
what purpose it serves.
Recent studies suggest that we yawn when we get tired as a way to encourage our brains. The theory is that yawning helps cool the brain, allowing it to
work more efficiently. According to WebMD's article about these studies, when you yawn, your jaw muscles get stretched, increasing blood flow to your
neck face, and head. Also a deep breath during the yawn forces spinal fluid and blood down from the brain. The cool air then cools down these fluids.
Other scientists believe, however, that yawning is a form of communication. This theory attempts to explain why yawning seems to spread from person to
IS person. This kind of behavior is called *contagious yawning" and carries with it a possible social
message. Scientists are not yet sure what exactly the
message is, but they believe people who have more social empathy are more likely to start yawning when they see someone else yawning.
Scientists will continue to investigate the mystery of the yawn. Is it a leftover behavior from before humans had language? Was it a "Hey, I'm sleepy. Let's
go to sleep" message? Or is it really just a way to keep our brains cool? While this is behavior still is largely a mystery, one thing is certain: you are probably
fighting the urge to yawn right about now.
According to the text, what is one purpose of the yawn?
TO encourage the brain
O To find all the answers
O To wake up the body
O To exercise facial muscles
English
2 answers:
kipiarov [429]2 years ago
7 0

Answer:

To wake up the body

Explanation:

Nitella [24]2 years ago
4 0
To wake up the body is the answer.
You might be interested in
What is apersons appearance behavior and brain and body functions
egoroff_w [7]

Answer:

he correct answer is phenotype. Phenotype is being defined as the set of characteristics that are being observed in the individual in which they are composed of the individual’s character or traits, his or her behavior and as well as their appearance and their development as an individual.

Explanation:

6 0
3 years ago
Which nutrient do adult women increase to prevent bone-density loss?
LenKa [72]

Answer:

Protein Is Important for Bone Health

Explanation:

Hope this helps!!! :)

7 0
2 years ago
Write a letter (in about 80-100 words) to the Editor of a leading newspaper about the need to control the air pollution in the c
Gemiola [76]

Answer:

I urge your esteemed newspaper to publish a notice call to the concerned departments to look into this matter immediately.

Explanation:

789 Hari Hara Lane

Chuo City

Tokyo 143-0024

The Editor

The Capital Times

13th Avenue Tower

Tokyo 110-0016

To the concerning authority,

I'm compelled to write this letter to your esteemed authority to express my concern regarding the quality of air in the capital city. It has been observed both by the citizens and various organisations that air pollution within the city is increasing rapidly since the last 5 years.

It is a threat to the lives and welfare of the citizens living in the city especially for children and senior citizens. Therefore, I urge your esteemed newspaper to publish a notice call to the concerned departments to look into this matter immediately. I firmly believe your participation in this matter will have a great impact for the betterment of the capital. Than you.

Yours sincerely,

Yahiko Watanabe.

7 0
3 years ago
Why does Desiree forget the lyrics
sukhopar [10]

Answer:

C, The last option

Explanation:

She sees the judges and becomes nervous about performing :)

4 0
2 years ago
Read this excerpt from Chapter 1 of I Know Why the Caged Bird Sings by Maya Angelou and answer the question.
Bond [772]

Answer:

A

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the term for an asterisk (*) being used to replace a letter or group of letters?
    14·2 answers
  • Read the sentence
    11·2 answers
  • ANSWER FAST PLEASE!! The words "insignificant" and "signify" share the same root. This makes them __________. A. context clues B
    12·1 answer
  • Are all the answers for penn foster here
    7·2 answers
  • Why would Andy Warhol call his studio "the Factory?"<br><br> HELP MEEE
    5·1 answer
  • How can you make this sentence stronger and more descriptive? How does she know he is filled with loneliness but still has hope
    10·1 answer
  • When identifying the author's main purpose the reader should...
    13·2 answers
  • PLEASE HELP!! DUE SOON!!<br> Describe Soto's first day chopping cotton.
    8·1 answer
  • Please help Vocational education always begins in high school.<br> A. <br> True<br> B. <br> False
    12·1 answer
  • Explain how societal
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!