ice floats on water because ice is less dense than water, how is this helpful to fish tnat live in a lake

The helps fish in 2 ways. Since water can have a high amount of energy gained or loss and not change, the entire lake will not freeze. Thus, fish will still be able to live in liquid water. The ice also, as strange as it may sound, provide insulation for the fish, so they don’t freeze. The water can do this because it requires a huge change in energy to counteract the hydrogen bonds.

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.