Which of the following has a nucleus and can make its own food? A. prokaryotic, autotrophs
B. eukaryotic, autotrophs
C. prokaryotic, heterotrophs
D. eukaryotic, heterotrophs

Ifound this on google “aristotle (384–322 bc) in western scientific taxonomy the greek philosopher aristotle was the first to classify all living things, and some of his groups are still used today, like the vertebrates and invertebrates, which he called animals with blood and without blood.” i hope this you for what your looking for.

Idont understand i'm sorry

Im not sure if you still need this but the answer is 300 hz450 hz  i just did this lesson so , wish you the best of luck and take care

That is false even though water expands when frozen nothing changes at all