What two phyla are contained within the grouping of deuterostomes?

Name the four defining features of chordates.

From which embryonic germ layer does the notochord develop from?

In organisms in which the notochord persists into adulthood, what are its functions?

From which embryonic germ layer does the dorsal, hollow nerve cord develop?

What organ does the anterior portion of the neural tube develop into?

What organ does the posterior portion of the neural tube develop into?

What are the 6 defining features of members of subphylum Vertebrata?

Name the skeletal support rods that form on both sides of the pharyngeal gill clefts.

Of what does the axial skeleton consist?

Of what does the appendicular skeleton consist?

What is the term for organisms that bear live young that develop within a uterus and are fed via a placenta?

What is the term for organisms that produce yolky eggs that develop within the reproductive tract of the mother until they hatch?

What is the term for organisms that lay eggs that develop and hatch outside the body?