Title: Assignment: LAB - Animals (pt 3)
Course: BIO-182 RTZ

COCONINO COMMUNITY COLLEGE

Bio182 - ANIMALS - continued

There are two major groups of bilaterally symmetrical triploblastic animals: the protostomes and the deuterostomes. This week we learn about the deuterostomes.

As with the plant portion, there are two sections to each lab: 1) a few questions to answer online (5 pts) and 2) an in-class portion examining representative organisms of different phyla (10pts). The in-class portion gets incorporated into the portfolio.

QUESTIONS:

1. (1) What evidence links echinoderms and chordates?

2. (2)  Explain one of the three lines of evidence (fossils, morphology, molecular) which support the idea that birds were once reptiles.

3. (2) List and explain the features that distinguish chordates from other animals. .

3.