Ch. 26-28 Aquatic Invertebrates

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Learning objective: • For each of the phylums and classes we look at today, we will identify: • Method of fertilization and reproduction • Type of body cavity • Skeletal structure • Body symmetry • Body coverings • Locomotion • Special features
I. <strong>Aquatic</strong> invertebrates A. Phylum PORIFERA • Porifera – literally means “pore-bearers” – sponges have tiny pores, or openings, all over their body. • Ex. Sponges • All aquatic (water-dwelling) – most are marine (salt-water)
Page 4 and 5: REPRODUCTION: • Asexual - budding
Page 6 and 7: STRUCTURE: • Sponges have spike-s
Page 8 and 9: Ping-pong tree sponge
Page 10 and 11: Name origin: • Cnidarians get the
Page 13 and 14: Reproduction in Cnidarians: • Sex
Page 15 and 16: C. Phylum Mollusca • Name origin:
Page 17: 1. Class Cephalopoda • Name means
Page 21 and 22: 2. Class Gastropoda • Name means:
Page 23 and 24: 3. Class Bivalvia • Name means:
Page 25 and 26: D. Phylum Echinodermata • Name me
Page 27 and 28: Characteristics of echinoderms: •

Ch. 26-28 Aquatic Invertebrates

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