What generally don't have to deal with extremes of temperature or moisture?
Sponge ferns penguins polar bears fish snails cilia fat
A B C D E F G H
Fish Fish are the ultimate aquatic organism.
Most fish do not have to deal with extremes of temperature or moisture.
What generally don't have to deal with extremes of temperature or moisture? (A) Sponge (B) ferns (C) penguins (D) polar bears (E) fish (F) snails (G) cilia (H) fat