Modern day amphibians are ________.

Identify the portion of the sternum labeled “A”.

You are looking at the inferior surface of the skull.  Identify the bone labeled “D”.

Identify “2” on the thoracic cage.

Identify “1” on the thoracic cage.

Identify the posterior structure labeled “D”.

Identify the spaces labeled “5”.

Identify the section of the vertebral column labeled “2”.

The free-swimming larva of most sponges is a

Completely terrestrial salamanders