They live together 24/7
Not typically. Any breed of hen can make a crowing sound but it is often done by hens in a flock that has no rooster. The alpha hen in a flock of chickens without a rooster will often take over the "guard" duties of a rooster.
rooster
no. they will lay without a rooster
A good ratio is 1 rooster for every 15 hens. Many farms keep more hens than that and only one rooster, but that keeps him very busy.
4 hens per rooster is a better ratio. Roosters often "rough up" the hens when they breed, so having more hens will prevent any one hen from being picked on too much. I know lots of people who feel like 8 hens per rooster is about the maximum the average rooster can handle.
Yes, a rooster will be happier with hens around.
Yes, a rooster is a male chicken. Hens are female.
usually the ratio of hens to rooster is about 15 hens for every rooster. If you keep them separated an extra rooster is not a problem but in a flock of 24 hens,you will have some squabbling between the dominant rooster and the #2 .
the hens should accept the cockrel within one week at the most
No. Chickens will lay perfectly good eggs without a rooster. In fact, many people prefer not to keep a rooster, because they don't want to find a fertilized egg that was a little too far along.
Yes, they can put up a bit of a protest. The rooster can be quite insistent and the hen can sometime voice her protest very loudly.
Nope.