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fenix001 [56]
1 year ago
6

Smallpox was once endemic in india and africa, where there were low frequencies of the allele for type a blood. what did this su

ggest to scientists?
Social Studies
1 answer:
Makovka662 [10]1 year ago
7 0

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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Reference books that contain words of similar meaning and opposite meaning are called what
murzikaleks [220]

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Reference books that contain words of similar meaning and opposite meaning are called thesauruses

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3 years ago
Which of these would have been considered the dividing line between “East” and “West”?
SSSSS [86.1K]

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The answer is Prime Meridian

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What happends when endoplasmic reticulum food and energy enters the cell
Amanda [17]

Answer: well that's da answer

Explanation:it turns to mush.

this is an improvement by someone else:

it goes through the mitochondria, through the lysosomes, and then the vacuoles, goes through the endoplasmic reticulum, and finally out of the golgi bodies. that's how food and energy enters your body.

     

4 0
3 years ago
________ are those that use outdated and obsolete technologies or employ low-wage workers with few skills.
tekilochka [14]

Sunset industries are those that use antiquated and outmoded technology or use low-paid, unskilled labor.

A sunset industry is one that has reached its peak or boom and is now in decline. One such instance is the replacement of analogue recording technologies for audio or video by digital counterparts. Although analogue equipment is still available, sales have dropped significantly and are not anticipated to increase, leading to the labeling of this business area as a "sunset industry." Since they continue to be vital sources of employment, many nations attempt to maintain their own sunset industries. Protectionist measures are used to halt the decrease while sunrise industries grow.

Sunset Industries is an expert in the materials, tight tolerances, and complex manufacturing processes. In a time when many machine shops have attempted to cut costs by hiring "machine operators," Sunset Industries has maintained talented machinists who take joy in every element of the products they make.

Learn more about Sunset Industries here

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5 0
2 years ago
A  sentence using Startled
ELEN [110]
He looked startled for a moment, and then composed himself
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