Create an account
prezygotic reproductive barriers
A reproductive barrier that impedes mating between species or hinders fertilization if interspecific mating is attempted
postzygotic reproductive barriers
A reproductive barrier that prevent hybrid zygotes produced by two different species from developing into viable, fertile adults
The formation of new species in populations that are geographically isolated from one another.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together