Question

Two bird species have different mating calls, occupy different habitats in nature, and when they hybridize, the hybrids are infertile. Which isolating mechanisms maintain these species?

1. mechanical isolation, hybrid sterility, geographical isolation
2. ecological isolation, mechanical isolation, hybrid sterility
3. geographical isolation, temporal isolation, behavioral isolation
4. ecological isolation, behavioral isolation, and hybrid sterility

Answer 1

A. mechanical isolation, hybrid sterility, geographical isolation

Step-by-step explanation:

Hybrids are sterile and they occupy different geographical location