There are two species of sparrows that appear very similar to each other. A scientist tried to mate them. He observed that in spite of being of the same species, they didn’t interbreed. What evolutionary force must have worked in this example?

Migration

Geographical isolation

Reproductive isolation

Question

There are two species of sparrows that appear very similar to each other. A scientist tried to mate them. He observed that in spite of being of the same species, they didn’t interbreed. What evolutionary force must have worked in this example?
 


Migration



Geographical isolation



Reproductive isolation

anonymous · Answer

C 
Lol is this you're whole homework xD