Which element is considered the most versatile element in living organisms and why?

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

Where are the strongest jet streams located?

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm