CHAPTER 33 INVERTEBRATES Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Section C2: Protostomia: Lophotrochozoa (continued)
What are protochordata? Why are protochordata are primitive vertebrate Presenters; Shree jana Bomjan Pema Tshojay Kichu Lhaden.
Marine Invertebrates. Phylum Porifera: Sponges 1. Non-moving (sessile) animals 2. No nerves or muscles (no tissue differentiation) 3. Mostly marine.
Lecture #14 Date _____
Chapter 33
Cephalochordates Urochordates (Ascidians) Vertebrates Hemichordates Echinoderms Ambulacraria Deuterostomia Phylum Chordata.
Chapter 33 Invertebrates. I. Parazoa A. Phylum Porifera: Sponges Figure 33.2 (p. 647, ed. 6) – A sponge. 1. Non-moving (sessile) animals 2. No nerves.
