Biology / Bio 1809 · Atom · ~20 seconds
Shared Ancestral and Shared Derived Characters
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
A shared ancestral character is present in every organism in a group; a shared derived character arose later, present in only some.
Show
A vertebral column, present in every animal on a vertebrate tree, is ancestral; an amniotic egg, present in some, is derived.
Watch for
Whether a trait is ancestral or derived depends on which tree is examined — the trait can be either.