Yes.
Cows can get pregnant through the process of mating with a bull, where the bull inseminates the cow. This can happen naturally through natural mating or artificially through artificial insemination by a qualified professional.
human sperm cannot get a cow pregnant. The only species humans can get pregnant with their sperm is another human.
A cow is considered barren if it does not become pregnant despite multiple mating attempts over an extended period. A veterinarian can confirm this through reproductive examinations such as ultrasound or blood hormone tests.
Cystic ovaries may cause the heifer of cow to not be able to become pregnant, it may also cause the female to have irregular oestrous cycles, or persistent oestrous.
Only if the cow that they're mounting is in heat.
Yes. That's the only way you will get a calf. Breeding a cow to another male animal (except a bull bison or carabao) will not get her pregnant.
Your local library will have books on the cow mating season. One can also find information on the cow mating season online at WikiHow, YouTube and CattleManagement.
A heavily pregnant cow, or a long-bred cow. Or, a cow that is expecting soon.
no, you can only feed milk to kittens.
Only if the cow that they're mounting is in heat.
A pregnant cow who gives birth is a mother.
It should only be a matter of a couple hours.