The correct answer is <em><u>option A.</u></em> Porter is writing <em><u>social history</u></em> because he is focusing on lives of large numbers of ordinary people. He is examining letters, journal entries, autobiographies and newspapers from that time to see how the fear of the disease affected the lives of ordinary people. Porter is trying to recollect data from that time and put together a piece that describes how society was affected by the influenza pandemic, which was a consequence of World War I, an historic event that shaped and changed many societies, specially the ones from Europe.
Answer: Construct Validity
Explanation:
Construct Validity is a measure of how well a test is structured to examine the fact or event we actually want to measure. Put simply, do the variables we are trying to measure and labels we assign them reflect the idea that we intend?
In this question, the threat to construct validity is that black/white does not refer to race but social status due to the culture where the terms are used. The labels used here will translate into a test that measures a completely different idea, and will also generate different results from what is intended.
Answer:
Ten simple choices for a healthier planet.
Reduce, reuse, and recycle. Cut down on what you throw away. ...
Volunteer. Volunteer for cleanups in your community. ...
Educate. ...
Conserve water. ...
Choose sustainable. ...
Shop wisely. ...
Use long-lasting light bulbs. ...
Plant a tree.
That type of blood increased susceptibility to smallpox.
Which of the following best explains why, given the A allele's vulnerability to smallpox, natural selection did not eradicate it?
Diseases that the A type is not vulnerable to can affect other blood types.
Do you think that diseases can impact natural selection in any way?
A species will have a better chance of surviving than others if it has evolved tolerance to particular germs.
Why did people acquire dark skin?
- People who lived in regions with strong sunlight evolved dark skin tones as a result of natural selection to guard against ultraviolet (UV) rays, primarily to prevent their bodies from folate depletion.
- UV rays from the sun are what led to skin pigmentation during evolution.
Learn more about ultraviolet (UV) rays
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