common descent means the evolutionary in biology and how they have something linked with their common ancestors.
<span>Functional traits can be shared between organisms with divergent SSU rRNA sequences because functional traits may evolve independently, be shared through horizontal gene transfer, or be lost in divergent lineages.
Functional traits are characteristics that define our behavior.
</span>
<span>Killer whales are much more common in highly productive cold water areas. These include the Atlantic, the Pacific Northwest, and the higher latitudes of the Southern Ocean.</span>
