What is the difference between urban egypt and rural egypt?

Needed fast 15 points the process of natural selection favors certain characteristics in organisms, while it selects against other characteristics. what would happen if there was zero variation between all of the organisms on earth? a.organisms would evolve to increase variety b.natural selection would operate faster c.less food would be available d.evolution through natural selection would not occur

Which of teh following would explain the importance of the trans-siberian railroad to russia's economy? (schoology test)

How has the geography of india made it difficult for its people to expand before modern technology?