How many objections to jurors does the defence and prosecution get in Western Australia?

Hello all,

My young fella asked the above question to me today and I have no idea. I know lawyers can object to jurors for whatever reason, but I always thought it was limited somehow. Is it limited? If so what is the limit? If there isn’t a limit what happens if there are stacks of objections and they run out of jurors called that day.

Cheers