Science Mysteries: Why Do People Yawn?
Science has given humans many amazing devices and useful bits of knowledge. We know so much about our bodies and how to stay healthy, 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 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 behavior still is largely a mystery, one thing is certain: you are probably fighting the urge to yawn right about now.
Which word from the text best describes scientists' understanding of the yawn? (5 points)
a
Mystery
b
Breath
c
Language
d
Message
Answer:
mystery
Explanation:
Throughout the passage, the author repeatedly refers to yawning as a mystery. For example, "One mystery that still remains unsolved is why we yawn—what makes us yawn and what purpose it serves." and "Scientists will continue to investigate the mystery of the yawn." and also, "while this behavior still is largely a mystery, one thing is certain:"
in what way is tomotada a japanese hero in the story Green Willow?
Answer:
He is a hero because he sacrificed his own life in order to become a samurai warrior and fulfill quests. He is considered unheroic because he chose to leave Green Willow in order to settle and be a farmer.
Explanation:
Above
Read the sentences.
The settlers moved into the unknown. They left the familiar behind.
Which sentence correctly combines the two sentences into a sentence with a compound verb?
Moving into the unknown, the settlers left the familiar behind.
The settlers moved into the unknown and left the familiar behind.
The settlers moved into the unknown, leaving the familiar behind.
Leaving the familiar behind, the settlers moved into the unknown.
Answer:
The settlers moved into the unknown, leaving the familiar behind.
Explanation:
A compound verb is a verb that comprises of more than one word working collectively. In such sentences, one verb proceeds the another. The verbs in such sentences are joined with the help of the conjunctions. In the given sentence, a prepositional verb has been used. 'Moved into' is the example of the prepositional verb that had been used to form the complete sentence.
Help me with this question pleasee
What does the phrase “snowball ‘liking’ effect” most likely mean?
(I put a picture)
Answer:
Explanation:
It means, What is the snowball effect in psychology? The Snowball effect is a long-term process that starts from an initial state of minor differences and builds upon itself, just like a snowball rolling down the hill, becomes larger and larger. Hope this helps, I had to think about it for a while, but I hope this helps!
On p.857, Walter asks, "Ruth, what is it gets into people ought to be close?" When they try to talk about why they are having such problems, they reach no conclusion. What do you think the playwright wants us to understand as the cause of their problems
Answer:
The playwright wants the reader to understand that the main cause among the problems was the lack of communication and understanding among family members.
Explanation:
The excerpt presented in the question above is an excerpt from the play "A raisin in the sun" which features a family who received a large amount of money, which, despite changing their lives, proved that many problems affected all members of the family. These problems often become much bigger than what they should be due to the internal fights in the family, caused by the lack of communication, understanding and trust between the members. This is highlighted in the excerpt presented in the question above, where Walter, one of the main characters, feels uncomfortable with how the emotional distance between family members has affected everyone's lives.
Read the paragraph.
Trey repeated the scales. His manipulation of the keys was becoming less of a struggle, and the tuba was making sounds that were almost musical. The low notes still gave him pause, though, so he attempted them again. After countless repetitions, his room boomed with the tuba’s brassy blare. He held the last note until he was out of breath, and as he exhaled, he heard his mother say from downstairs, “That one sounded good!”
Based on the evidence provided, readers can conclude that Trey is
frustrated
determined.
talented.
impatien
Answer:
HE sounds determined
Explanation:
because he keeps practicing
Which of these terms is another term for clustering?
free writing
webbing
looping
spatial order
Answer:
im pretty sure its webbing.
Explanation:
Clustering, Mind Map, Webbing is a strategy that helps students organize their ideas and stay focused on a subject. Further, it helps students develop their ideas, deepen understanding, build connections, and identify important points about a topic. - g oogle
hope this helps!
Which advertisement for an amusement park would most likely appeal to an
audience of parents?
a. one that says its roller coasters are way wilder than another amusement parks.
b. one that shifts rapidly between images of candy and dangerous looking rides
c. one that pans over the vast parking lot, which is completely full of vehicles
d. one that shows scenes of tourists relaxing next to a pool while music plays
Answer:
D
Explanation:
"d" would be your best option because parents want a safe, easy, and calm environment to take their kids to.
The Crab That Played with the Sea
based on the details in the excerpt, what is its primary purpose?
Inform?
Describe?
Persuade?
Entertain?
Answer:
To Inform
Explanation:
For his science class, Lorenzo is exploring the possible negative impacts of cell phone use on health
Which nonfiction text best matches his reading purpose?
a debate between social media users on the question "Can cell phone use cause cancer?"
O an article published by a nonprofit organization citing how many people currently use cell phones
O a blog that explores why scientists are researching cell phone use and rising cancer rates
O an article from the National Cancer Institute about radiation statistics related to cell phones
The nonfiction text best matches his reading purpose is an article from the National Cancer Institute about radiation statistics related to cell phones. Thus the correct option is D.
What is a nonfiction Text?A text or book is said to be "nonfiction" when it is based on real-life events with supporting evidence or facts which help in proving the occurrence of the event.
Any book, piece of entertainment, or other work that honestly aims to inform the readers only about the actual world is considered non-fiction. To educate readers, it ought to be supported by facts and reasoning.
In the given options, an article from the National Cancer Institute about radiation statistics related to cell phones will provide enough evidence and information from a reputed source and will be considered appropriate for the given context.
Therefore, option D is appropriate.
Learn more about nonfiction text, here:
https://brainly.com/question/1830999
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Please help
I dont know what to do.
Helppppp…,,..::::;,,:..:…….
The idea that in Okonkwo's language, the word for "woman" is also used to describe a man
without power suggests?
revise the passage by changing all of the gurands to infinitive and all the infinitives to gerunds
"Giving is one of the best things people can do. To volunteer their time showed what caring people they are"
Answer:
To give is one of the best things people can do. Volunteering their time showed what caring people they are.
Explanation:
Gerunds are the words that are in the "-ing" form of the verb but acts as a noun. On the other hand, infinitives are the verbs that are preceded by "to" but do not act as a verb in the sentence.
In the given sentence, the word "giving" is a gerund while "to volunteer" is an infinitive. Changing these two into an infinitive and a gerund will make the sentence as
To give is one of the best things people can do. Volunteering their time showed what caring people they are.
Which one is it i need to passs this please helpp
Answer:
The Grimms embellished stories with more details in their final editions.
Explanation:
In "How The Grimm Brothers Saved the Fairytale", author Jack Zipes narrates how the Grimm brothers 'developed' and enhanced their stories with time. The author provides the history of the development of the children's tales that would become historically significant not only in Germany but all through the literary world all over the globe.
In the given excerpt, the author shows how the Grimms changed their descriptive development in their stories. Like here, for example, the tale of Rapunzel in the First and seventh editions differ mostly in their description of the same scene or detail.
Thus, the correct answer is the second option.
What is the appropriate personal pronoun for the bold words in the following sentence? Yes, Tina and Lil will enjoy it very much.
Our restaurant is becoming……….…………..successful, so we will have to hire more staff. ( increase)
Answer:
increasingly
Explanation:
Our restaurant is becoming……….…increasingly………..successful, so we will have to hire more staff.
Why we used increasingly?This word is used because it is used to indicate that a situation or quality is becoming greater in intensity. And according to the statement, since the restaurant is becoming successful, so we used increasingly.
What is an adverb?An adverb is a word that is used to change, modify or qualify several types of words including an adjective, a verb, a clause, another adverb, or any other type of word or phrase, with the exception of determiners and adjectives, that directly modify nouns.
Thus, he word increasingly is an adverb here because it is being used to describe how the success is changing.
Learn more on adverb here- brainly.com/question/1129340
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An incident of robbery I witnessed in my neighborhood
Read the sentence.
Roland, the artist, brilliantly captured the fading pastel light on his canvas, and he preserved the sunset for future generations to enjoy.
Which statement correctly describes the sentence?
It is one long independent clause.
It is one independent clause and one dependent clause.
It is two dependent clauses joined by a subordinating conjunction.
It is two independent clauses joined by a coordinating conjunction.
Answer:
two independent clauses joined by a coordinating conjunction
Explanation:
Both clauses stand alone
Roland's artistic captures are correctly described in option (d) or (iv): " It is two independent clauses joined by a coordinating conjunction."
How do you use coordinating conjunctions?A comma is used before the coordinating conjunction when it connects two separate sentences (unless the two independent clauses are very short).
Commas should never be used after conjunctions that aren't followed by non-essential elements.
A compound sentence is made up of at least two clauses that are independent of one another.
Therefore, the sentence given here is separated with adequate commas prooving coordinating conjunctions.
Check the link below to learn more about coordinating conjunctions;
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George and Tamara (doesn't, don't) want to see that movie.
doesn't
don't
Answer:
doesnt
Explanation:
because dont usually refers to a singular sentence or example " I dont want to see the movie."
Witch of the following is not true about motion?
Answer:
D
Explanation:
Answer:
B
Explanation:
A: true
B: False. Forces are what causes motion.
C: This is Newton's first law. It is true.
D: This is Newton's third law. It is true.
2.
In his speech, Booker T. Washington urges blacks and whites alike to "cast
down your bucket where you are.” What does this mean?
A. Go fishing
B. Make do with what you have and look for opportunities in your current
situation.
C. Quit work and go back to school.
D. Work to exchange your current situation for something better.
Answer:
B
Explanation:
Dr. Washington's idea that individuals should make the best of any condition they find themselves in is known as "Cast Down Your Bucket." Instead of going to the north, he believed that African Americans would benefit from staying in the south.
If I sell fish she's sell fish and he sell's fish. Who is selfish?
Answer:
no one
Explanation:
Answer:
no one
Explanation:
Thanks for the points
Have a nice day! :-)
In April 2010, an oil rig exploded in the Gulf of Mexico. Millions of gallons of oil leaked into the Gulf, devastating
wildlife. Scientists tried to clean up the spill in a variety of ways. One approach involved the use of oil-eating
bacteria. However, scientists were divided on its effectiveness. Some maintained that the bacteria were "fairly
fast" in cleaning the spill. Officials reported that the Gulf would make a full recovery by 2012. Yet Samantha Joye,
a marine scientist, disagreed. She conducted a study of the sea floor. She found that the bacteria had cleaned
only 10 percent of the oil. She reported that the Gulf would take many years to recover.
Do It!
The reports were
А
ignored
B conflicting
С
humorous
D appreciated
The answer is B, conflicting.
Answer:
B conflicting
Explanation:
The reports were conflicting.
In act lll,scene ii of Julius Caesar, who gave their reasons why ceasar was killed
Answer:
Brutus and Antony gave their reasons for why Caesar was killed
That's just how it happened
Are children the intended audience?
Answer:
It depends on the genre...
Explanation:
Hazel had a perfectly average intelligence, which meant she couldn't think about anything except in short bursts.
And George, while his intelligence was way above normal, had a little mental handicap radio in his ear. He was
required by law to wear it at all times. It was tuned to a government transmitter. Every twenty seconds or so, the
transmitter would send out some sharp noise to keep people like George from taking unfair advantage of their
brains.
How could this excerpt serve as a warning about the consequences of forced uniformity?
O by suggesting that forced uniformity specifically benefits individuals who are not smart
O by suggesting that forced uniformity encourages certain people to break the law
O by implying that forced uniformity interferes with individuals' intellectual development
by implying that forced uniformity hampers a society's ability to use new technologies
Mark this and retum
Save and Exit
Next
Submit
Answer:
C or "by implying that forced uniformity interferes with individuals' intellectual development"
Explanation:
A)by suggesting that forced uniformity specifically benefits individuals who are not smart
C)by implying that forced uniformity interferes with individuals' intellectual development
These two answers make the most sense, but with the wording of the question, suggest a lean towards the second.
Considering it wants a warning of the consequences it seems to want something negative, which C offers. A actually provides support for uniformity, but also makes more sense in the context of what was just read, especially in regards to the last line.
I would suggest you take a deeper look at the previous questions to see whether your teacher really wants you to view the text in a good or bad light, which would help you identify the best answer; but for now I suggest C.
x
Given (x - 1)^2= 50, select the values of x.
x = -49
x = 51
X=1+5v2
X=1-5v2
DONE
Answer:
the answer to your question is x=49
Marsha deposited $12,000 into a savings account 5 years ago. The simple interest rate is 4%. How much money did Marsha earn in interest?
Answer:
$2,400
Explanation:
Interest = capital x interest rate x duration
Interest = $12,000 x 4/100 x 5
Interest = $2,400
the stranger came early in February, one wintry day, through a biting wind and a driving snow, the last snowfall of the year, over the down, walking as it seemed from Bramble Hurst railway station, and carrying a little black portmanteau in his thickly gloved hand. Which adjective best describes the setting that the words in this sentence help to evoke?
a) cozy
b) dreamlike
c) dull
d) harsh
(Explain why this is the answer)