Answer:
When total diversity in the neutral model became small (similar to the number of continents), a significant increase in diversity is observed as a result of continental drift. This is because in the extreme case of low speciation rate, after a sufficiently long period of time, a fragmented set of continents necessarily maintains a separate species in each, whereas a single supercontinent would only contain one species. As the speciation rate decreases still further, the system ultimately converges to a state where there is still only one global species, because the speciation event bringing it into existence is pushed back to a time when the continents were still connected. Explanation:
Answer:
The correct answer is C) There was a shift to a rural society.
Explanation:
C
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Answer:
Family life in Virginia and across the South suffered devastating effects during the American Civil War (1861–1865). Many families were uprooted as they witnessed the destruction of their homes and landholdings. ... Most profoundly, all families dealt with the ordeal of separation.
Explanation: