Did the birds stay on the island and change over time?
or
Did the birds and other birds move onto and off of the island?
The birds on the island have changed over thousands of generations. This is called: which one is it a or b i don't understand this?
A. genetic drift: the change in allele frequency in a population
B. gene flow: when organisms move in or out of a population
2 answers
Yes
1 answer