While dogs can get psoriasis, they do not get it from humans.
Both!
There are more humans than dogs.
Dogs act like their owners for many reasons. It is called the "Mirror Method" for training, where you show them what to do. For example, some dogs dig because they see their owners digging in the garden, so this makes them figure that digging is okay and the correct behavior. It makes total since considering we humans do things. If we do something, shouldn't it mean dogs should be able to, too? In the dog's mind, if his or her owner does something, it means that it is the correct behavior and that it can/should be copied for approval and/or praise.
Dogs are hairy for the same reason humans are. Why are humans hairy?
The dogs lasted by digging holes in the ground to keep warm. Your welcome ;)
Yes. Dogs that 'work' or are trained to help humans are called service animals.
Compared to certain creatures, yes they are one of the smartest animals.
Liver medicines do not work the same on humans as they do dogs. A dogs body works different than a humans.
Over 75% of humans in the world are scared of dogs.
No dogs cant be humans. Unless you wish really hard for it to happen.
Humans and dogs belong to the phylum Chordata.