The hundreds of species of drosophila in hawaii exhibit different mating rituals. this isolating mechanism is
a. prezygotic and behavioral.
b. prezygotic and temporal.
c. prezygotic and geographical.
d. postzygotic and mechanical.
e. prezygotic and ecological.

This isolating mechanism is Prezygotic and behavioral.

Option: (A)

Explanation:

Drosophila is a genus of flies which is called 'vinegar flies' or 'small fruit flies' or 'wine flies'. Reproductive isolation means that different species might live together, but their own properties prevent them from 'interbreeding'. Preventing the "fertilization of eggs" is called prezygotic isolation. Temporal isolation, behavioral isolation, habitat isolation, gametic isolation, mechanical isolation are prezygotic isolating mechanism. Behavioral isolation refers when two populations belonging to same species will develop some kind of differences in behavior, typically in 'mating rituals'.