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Who of the Following Is Probably an Adolescent (And Not

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Who of the following is probably an adolescent (and not a child) ?


Definitions:

Actinistia

A subclass of mostly extinct fish, with the modern coelacanths being the only living representatives, characterized by lobed fins.

Coelacanth

A rare order of fish that was thought to be extinct until found alive in 1938, known for its lobed fins which resemble primitive leg structures.

Sacropterygian Fishes

An ancient group of lobe-finned fishes, some of whose descendants evolved into terrestrial vertebrates.

Ancestral

Relating to or inherited from an ancestor or ancestors.

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