A zoo wants to assist two related endangered species with their reproduction and plans to directly implant the sperm into the female. Which type of isolation cannot be overcome this way?
A - Temporal
B - Gametic
C - Behavioral
D - Spatial
E - Mechanical
Answer: B - Gametic
GAMETIC isolation is when sperm of one species cannot find, attach, or fuse with the egg of the other meaning no zygote is ever formed. (prezygotic barrier)