it comes from animals, and humans
No, a hierarchy developed, just as with the humans owning the farm
Yes animals have cell structure. Humans also come under the kingdom animalia.
No, it is not scientifically possible for humans to be born from animals. Humans are a distinct species with unique genetic characteristics that differ from animals.
Yes. This is true of all animals and humans.
Humans didn't "come back"; that implies that they had been here and left for some reason. Most contemporary theories say that humans didn't come into existence until long after the death of the last dinosaurs. Humans developed from animals that lived along side the dinosaurs, but the animals were far from human in every way. This kind of thinking is different from approaches that suggest that all the animals came about at the same time.
Since disease can come from humans to animals, and vise versa, animals can be in water and infect it with its problems.
Humans are animals
We were made as animals one because we were like apes because they say apes are smarter than humans so the first person ever born was first made or created by god or himself
Some people believe that. It depends on your religion. It's called evolution.
Humans are animals.
Yes, animals know when humans are hurt because i know this from experience whenever i don't feel well my cat will come to me and keep me comforted until i am better.