Question

Early land vertebrates are amphibians and possessed limb structure called
A. Unidactyl limb
B. Tridactyl limb
C. Pentadactyl limb
D. Tetradactyl limb

Answer 1

Answer:

Many vertebrates have a very similar bone structure despite their limbs looking very different on the outside. This structure is known as the pentadactyl (five fingered) limb. This suggests that many vertebrates descended from the same common ancestor.

Explanation:

C.pentadactyb limb....

Answer 2

Early land vertebrates are amphibians and possessed limb structures are called pentadactyl limbs.

• Pentadactyl limb are the limb that are present in the early land vertebrates I.e all tetrapods like mammals, birds, amphibians and reptiles.
• A pentadactyl limb is a limb that involves five toes and fingers. All the vertebrates that have evolved from early amphibians including birds, mammals, and reptiles.
• They have limbs that have evolveoped from this similar main pattern of pentadactyl limb.

Hence, Pentadactyl limb are the limbs possessed by the early land vertebrates that are amphibians.