The genes.
acid and molecules
They are all dairy breeds.
The type of pig is the breed. There are several recognized breeds of pigs in the world, each with its own characteristics and needs.
A purebred Friesian is usually 15hh-17hh, although today horses are being bred bigger. Part-breds will be smaller, depending on what breeds they are mixed with. Look up Friesians on the Internet for more information, Winnie the Horse Gentler
It all depends on what you are referring to as a "white face" cow: Are you referring to a: Simmental? Hereford? Simmental cross? Hereford cross? or... The famous Angus x Hereford black baldy? No matter, a beef cow of the typical breeds above weighs between 1100 and 1700 lbs. Simmentals are typically bigger than the Herefords and Hereford crosses, so some Simmental cows can reach up to 1800 lbs where the big Herefords only reach up to 1600 lbs.
Those Continentals are the best at this type of ratio. Breeds like Charolais, Maine Anjou, Limousin and Gelbvieh have efficient feed:weight ratios, often better than British breeds like Hereford or Angus.
They are all dairy breeds.
Hereford is a pure breed, and the origin of the colour pattern of the Hereford breed is pretty much unknown. So you can't find two breeds to cross to find Hereford, unless you can find a Hereford cow and a Hereford bull and "find" a Hereford calf!
Jerseys and Herefords are breeds of cattle.
Holstein Friesian cattle
The Friesian horse dates back to the early 1600's. It's a cross between West German horses and the Andalusian horses. These horses were bred by the monks of Friesland, a province in the Netherlands.
I don't know all of them but I know that the Friesian did.
I am pretty sure the black horse is a Friesian. There are a few other breeds it could have been, like a fell or dales pony, but it is most likely a Friesian.
Angus, Hereford, and Shorthorns.
That really depends on where you're located. In North America for example, the most common cattle breed is Angus, followed by the Holstein. However, the Composite breed (or "breed" rather) is also the most popular in North America, since it is found on most commercial cow-calf operations and in the majority of feedlots.
The main breeds are Angus (being the most popular), Charolais, Hereford, Limousin, Simmental.
Angus, Hereford and Shorthorn.
Holstein-friesian, Brown swiss