"A duck is an animal."
Translation:Kaczka to zwierzę.
December 30, 2015
24 CommentsThis discussion is locked.
This discussion is locked.
In a lot of cases, they're completely interchangeable. Have a look here: https://www.duolingo.com/comment/16373167
If "Kaczka jest zwierzęciem" was available, and I guess it was, then everything is fine. Well, could be better (see here: https://forum.duolingo.com/comment/27952965), but it's fine.
This one is hard to explain in English, since it has no idea of nouns declination/cases. Try to think of the question not like "what the cat IS" - an animal, but "what the cat is being" (or even "being of") - then it makes more sense to not use just a simple nominative case (an animal), but instrumental.