Hi, Murky! Welcome! Was Muddy your cousin, perhaps?
I say that since I don't know to what extent terms have been defined.
Pretty extensively defined, mostly over in the Biological Evolution forums. You might want to nose around over there a bit.
After millions of generations, birds are still birds, bacteria are still bacteria and so on. Organisms adapt within their "kind" but do not become different organisms.
Yup. We humans are still anthropoid apes, and still primates, and still mammals, and still tetrapods. That's what evolution is all about.