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mash [69]
3 years ago
5

The original habitat of the North American maggot fly, Rhagoletis pomonella, was native hawthorn trees. About 200 years ago, som

e populations colonized newly introduced apple trees. The two populations are still classified as subspecies, but sympatric speciation is underway. What has contributed to incipient speciation in the maggot fly?
Geography
1 answer:
Helga [31]3 years ago
5 0

Answer:

A. Because apples mature more quickly than hawthorn fruit, the apple-feeding flies have been selected for more rapid development

Explanation:

  • The North American maggot fly is a native to the eastern North America and is breeds on the large fruits of the large hawthorn trees and tip of the females in more narrowly and pointed than the males and the rapid development of the trees these fly have incipient specialization and adaption towards the apple trees and their scents have more attraction to them.
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Answer:

Social Stratification

She's from the wrong side of the tracks. He was born with a silver spoon in his mouth. This degree is my ticket to the world!

What do these phrases mean? They are referencing social standing or social stratification. Social stratification is a method by which societies categorize and rank members in a hierarchy.

Stratification is a key concept in sociology. Early societies didn't rank members. As societies evolved, they began to classify their members. Some categories, like landowners, received promotions. Others, like wage earners, seemed to be demoted.

Today, all societies use social stratification, though some countries are more stratified than others. The systems and the beliefs behind those systems are deep-rooted. Stratification systems impose inequalities that persist for generations.

Social Stratification in the U.S.

For example, in the United States, it's fairly easy to detect the 'haves' from the 'have-nots.' Today's Rockefellers still enjoy the wealth and status gained by family members in the late 19th century. On the other hand, some families of former slaves still struggle.

The U.S. stratification system is based on socioeconomic status or SES. SES is a categorization formula that considers a person's income, education, and occupation. Our society places a higher value on:

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Explanation:

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