The answer for this question is: Fictive kinship
In sociology, fictive kinship refers to the social ties that is formed to the point where two persons acknowledge each other as a brother/sister even though they do not possess any form of blood relations.
Usually, people form this kind of ties after experiencing hardship together.
Answer:
Goats
Explanation:
The ancient Egypt was a country many people knew to have lots of natural resources at their disposal but they could not attain a certain degree of self-sufficiency and they had to rely on trade for them to get the goods and luxuries they required.
Because of trade, they created land and sea trade routes that connected their country, Egypt, with countries like India, Arabia and Sub-Saharan Africa. The Egyptians imported goats and sheep from Southwest Asia.
Diversifying selection occurs when extreme values for a trait are favored over the intermediate values. This type of selection often drives speciation. Diversifying selection can also occur when environmental changes favor individuals on either end of the phenotypic spectrum.
The disruptive selection also called diversifying selection, describes changes in population genetics in which extreme values for a trait are favored over intermediate values. In this case, the variance of the trait increases, and the population is divided into two distinct groups.
This type of selection often drives speciation. Diversifying selection can also occur when environmental changes favor individuals on either end of the phenotypic spectrum. Imagine a population of mice living at the beach where there is light-colored sand interspersed with patches of tall grass.
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