No, not legally, and no offspring can be created.
Defensively.
yes
On turkeys and goats it hangs from under the chin... On humans (only males) it hangs from the pelvis
Humans, lions, and dogs.
the same way as humans
Many humans raise goats for their meat as well as their milk. So if you want to consider that humans predating on goats, then yes.
Defensively.
no
they had a new source of food
Normally, they would drink blood. Preferebly from humans and goats.
Yes
yes
On turkeys and goats it hangs from under the chin... On humans (only males) it hangs from the pelvis
They might be able to because I've seen videos online that show goats AND sheep imitating humans.
Yes, sheep and goats have backbones. All mammals, including humans, are vertebrates.
Yes they could but they would not stay on the humans but the human could carry them on their clothes and reinfect other goats they come in contact with.
Humans, lions, and dogs.