Question

which sequence places tiktaalik in the correct evolutionary order?
o lobe - finned fish, tiktaalik, tetrapods
tetrapods, ray - finned fish, tiktaalik
tetrapods, lobe - finned fish, tiktaalik
o lobe - finned fish, tetrapods, tiktaalik
o ray - finned fish, tetrapods, tiktaalik

Explanation:

Tiktaalik is an extinct sarcopterygian (lobe - finned fish) that is considered a transitional fossil between lobe - finned fish and early tetrapods. Lobe - finned fish are an older group. Tiktaalik, which has features of both fish (like fins) and tetrapods (like a flat head and wrist - like bones), evolved from lobe - finned fish. Tetrapods then evolved from forms similar to Tiktaalik. Ray - finned fish are a different group (Actinopterygii) that have a different evolutionary path compared to the lineage leading to tetrapods.

Answer:

lobe - finned fish, Tiktaalik, tetrapods