I'm assuming that by "young cows" you are referring to heifers. You should separate heifers and bulls right after they're weaned, which is around 6 to 10 months of age, or before one or more of them are going to start puberty.
They aren't. Bulls are when they're quite young, but not cows.
Whenever you need to separate them. Honestly, it's your choice when you want to separate them. But note that in terms of cow-calf herds, you need to separate calves from cows when the calves are around 6 months of age. It may be a good idea to separate bull calves and steer calves and their mommas from the cows that have heifer calves at their side a month or two prior to weaning. Heifers and steers can be together, but you need to separate bull calves from heifers and keep them separate during the weaning process. This minimizes the risk of these young bulls breeding an early-maturing heifer and getting her bred by accident. Cows should be separated from bulls (NOT vice-versa, as it's more dangerous to separate bulls from the cows) after 60 to 80 days have passed since the bull was put in with the cows. Separate cull cows from the main cowherd the day you are going to sell them or, if you want to fatten up these cull cows, a few weeks prior to selling them. Before winter sets in, separate thin cows from the fat or normally-conditioned cows and put them with your bred heifer herd.
The females are cows, the males are bulls and the young are calves. Just like cattle.
Males are bulls, females are cows. Young giraffes are calves.
Male elephants are called bulls, females are cows.
Male cows don't exist. There are only cows and bulls, no female cows, male cows, male bulls, female bulls. With that said, only cows (which are, by definition, mature female bovines that have given birth to at least one calf) are ones that have cervixes, bulls do not. Bulls have their major reproductive organs close to or mostly outside their body, cows have theirs inside.
Whales are named like cows: males are bulls, females are cows, young are calves.
In my opinion the word for cows and bulls in a group is called a herd.
All bulls are male. Cows are female, mostly.
Yes they do because all cows are girls and all bulls are boys
No. Bulls and cows see things the same way as the other.
Yes, just like human males have teats and cows and heifers have teats. The only difference between the teats of bulls and cows is that the teats of a bull are non-functional.