Question

Why should readers preview headings in an expository article? Select the two correct answers.(1 point)
Responses

to identify the thesis statement
to identify the thesis statement

to analyze the text structure
to analyze the text structure

to predict the content of the text
to predict the content of the text

to determine the reasons and evidence
to determine the reasons and evidence

to evaluate the claims and counterclaims

Answer 1

The two correct answers are:

1. to analyze the text structure
2. to predict the content of the text

Previewing headings helps readers understand how the article is organized and what topics will be covered, which aids in comprehension and anticipation of the content.

Answer 2

"Why are yawns contagious? We asked a scientist"
by Teresa Carey

Why do we yawn?

There is no scientific consensus on why we yawn. One theory argues that when humans are tired, we stop taking deep breaths, which causes a build-up of carbon dioxide in the body, said Douglas Parham, a speech scientist at Wichita State University. A yawn might be a special kind of respiration, Parham said. It builds up oxygen quickly, while expelling carbon dioxide, even more than a deep breath.

Excess carbon dioxide and other chemical changes, such as a drop in oxygen or increase in a compound called adenosine, could also act as “yawn gates,” said James Giordano, a neuroethicist and neuroscientist at Georgetown University. These chemicals send out a signal that triggers a yawn. By yawning, we compress the muscles of the face, driving oxygen-enriched blood to the brain, Giordano said.

Other proposals state the purpose of yawning is to cool the brain, or to stretch internal organs like tissues and lungs, helping the body to liven up.



© NewsHour Productions LLC. All Rights Reserved.

Question
Use the passage from “Why are yawns contagious? We asked a scientist.” to answer the question.

Effect: We yawn.

Cause: to quickly expel carbon dioxide

Cause: to drive oxygen-enriched blood to the brain

Cause: to stretch internal organs

Cause: ?

Cause: ?

Based on the information in the passage, which cause completes the graphic organizer? Select the two correct answers.

(1 point)
Responses

to cool the brain
to cool the brain

to increase adenosine levels
to increase adenosine levels

to build up oxygen
to build up oxygen

to compress facial muscles
to compress facial muscles

to increase the frequency of deep breaths
to increase the frequency of deep breaths

Answer 3

Based on the information in the passage, the two correct answers that complete the graphic organizer are:

1. to cool the brain
2. to build up oxygen

These causes are mentioned in the context of why we yawn and the proposed purposes of yawning discussed in the passage.

Answer 4

What is the goal of an argumentative text?(1 point)
Responses

to propose a solution to a problem
to propose a solution to a problem

to present evidence in a thesis statement
to present evidence in a thesis statement

to encourage the reader to draw conclusions
to encourage the reader to draw conclusions

to convince the reader to accept a claim

Answer 5

The goal of an argumentative text is:

**to convince the reader to accept a claim.**

Argumentative texts aim to persuade the audience of a specific viewpoint or position on a particular issue through reasoning and evidence.

Answer 6

"White Bias in Genetic Research May Hurt Health"
by Vicky Stein

Modern humans originated on the continent of Africa more than 300,000 years ago, and subsequent generations migrated across the land, with groups intermarrying or splitting apart. Sometime around 80,000 years ago, a small number of descendants left the continent and radiated around the globe, taking with them just a subset of the genes and genetic variation that their ancestors had developed.

Yet genetic studies are now dominated by that subset, according to a new article in Cell.

As of last year, 78 percent of the people included in the most prominent form of genomic research—genome-wide association studies (GWAS)—were of European ancestry. But worldwide, Europeans and their descendents make up just 12 percent of the population.

According to the researchers, heavily biased genetic databases could—and do—lead scientists and doctors to diagnose conditions or prescribe treatments that might be relevant to people with European genes, but not for people from other racial backgrounds.

1 of 2
Question
Use the passage to answer the question.

Which statement from the passage establishes the author's claim?

(1 point)
Responses

"As of last year, 78 percent of the people included in the most prominent form of genomic research—genome-wide association studies (GWAS)—were of European ancestry."
"As of last year, 78 percent of the people included in the most prominent form of genomic research—genome-wide association studies (GWAS)—were of European ancestry."

"Sometime around 80,000 years ago, a small number of descendants left the continent and radiated around the globe, taking with them just a subset of the genes and genetic variation that their ancestors had developed."
"Sometime around 80,000 years ago, a small number of descendants left the continent and radiated around the globe, taking with them just a subset of the genes and genetic variation that their ancestors had developed."

"According to the researchers, heavily biased genetic databases could—and do—lead scientists and doctors to diagnose conditions or prescribe treatments that might be relevant to people with European genes, but not for people from other racial backgrounds."
"According to the researchers, heavily biased genetic databases could—and do—lead scientists and doctors to diagnose conditions or prescribe treatments that might be relevant to people with European genes, but not for people from other racial backgrounds."

"Yet genetic studies are now dominated by that subset, according to a new article in Cell."
"Yet genetic studies are now dominated by that subset, according to a new article in Cell."
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Answer 7

The statement from the passage that establishes the author's claim is:

**"According to the researchers, heavily biased genetic databases could—and do—lead scientists and doctors to diagnose conditions or prescribe treatments that might be relevant to people with European genes, but not for people from other racial backgrounds."**

This statement clearly articulates the issue the author is addressing regarding bias in genetic research and its implications for healthcare across different racial backgrounds.