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When populations with separate ancestors adapt in similar ways to similar environmental constraints it is?
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At what point are two populations descending from the same ancestors considered separate species?
When they have reproductive isolation. This happens when either physical or biological barriers prevent reproduction between the two populations. At that point, their mix of genes will be significantly different that they will be considered two new species.
Two populations kept separate by a river are characterized by?
Geographic isolation
Can geography separate populations causing evolution to occur?
I should think it might occur through droughts, famines, floods, causing populations to originally go separate directions and travel many thousands of miles.
What happens when members from separated populations do not reproduce with each other?
They become separate species.
What happens when members from separated populations not reproduce with each other?
They become separate species.
How can the isolation of populations lead to specification?
it leads to specification because you separate the populations and a population with a certain trait will become dominant over a certain area of land or mass.
An earthquake creates a chasm that separates a population of squirrels. The two populations of squirrels evolve into two separate species. What is the name of the process by which isolated populations?
cheating on study island? Speciation
Two populations that have no gene flow between them are likely to?
If there is no gene flow between two populations then they will eventually become genetically distinct, thus forming two separate subspecies. If this isolation continues for longer still, then the 2 populations become so distinct that if you cross-bred between them, then no viable offspring could be produced. This would mean that they had become two separate species.
Describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species. study island
What describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species. study island
Would you be considered Russian is your ancestors were from czechslovokia?
No, being from Czechoslovakia does not make one Russian. Czechoslovakia was a separate country from Russia with its own distinct culture, history, and language. If your ancestors were from Czechoslovakia, you would be of Czech or Slovak descent, not Russian.
Which best describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species.(study island)
