Which of the following could be considered the most recent common ancestor of living tetrapods?
A) a sturdy-finned, shallow-water lobe-fin whose appendages had skeletal supports similar to those of terrestrial vertebrates
B) an armored, jawed placoderm with two pairs of appendages
C) an early ray-finned fish that developed bony skeletal supports in its paired fins
D) a salamander that had legs supported by a bony skeleton but moved with the side-to-side bending typical of fishes
E) an early terrestrial caecilian whose legless condition had evolved secondarily
Common invasive species in the Adelaide Hills: Olive, Artichoke thistle, Fennel and Bamboo
Clades and descent from common ancestor
Pollen from a variety of common plants
McBurney’s point is the common location of pain in children and adolescents with appendicitis.
Common locations of venous thrombosis. (A) The most common sites of deep vein thrombosis. (B) DVT ex
Common Fluoride Products