What do most fish not have to deal with?
hardened backbone death Exposure to oxygen and water vertebrae or backbone disasters Extremes of temperature krill and plankton predators
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 do most fish not have to deal with? (A) hardened backbone (B) death (C) Exposure to oxygen and water (D) vertebrae or backbone (E) disasters (F) Extremes of temperature (G) krill and plankton (H) predators