25. Fill in the blank, both (1) and (2), from question bank: Gene flow naturally delineates species. For _____(1)_______

[answerhappygod]

25. Fill in the blank, both (1) and (2), from question
bank: Gene flow naturally delineates species. For _____(1)_______,
gene flow unifies individuals in a population into a species;
however, in ____(2)______, gene flow from one population to another
actively creates new species.
a. prokaryotes
b. eukaryotes
c. vertebrates
d. sympatric speciation
e. allopatric speciation
f. cephalopods