1. WARM UP Classify the following animals into the appropriate phylum:
Squirrel
Leech
Jellyfish
Mosquito
Tapeworm
Snail

2. Sponges Notes
Phylum Porifera

3. General Characteristics
5,000 species
Warm, shallow water
Sessile as adults

4. Structure Central hollow tube open to the top
Lined with cells
Covered in exterior pores
Supported by spicules (hard) or spongin (soft)

5. Feeding Filter feeds on detritus Collar cells catch food
Flagella keep water moving

6. Reproduction
Asexual
Regeneration from parts
Budding off main body

7. Reproduction Sexual Hermaphrodites
Sperm released externally to fertilize eggs internally
Swimming larva attaches and develops

8. WRAP UP
Describe how sponges are able to obtain food even though they are sessile as adults. Use the terms flagellum, ostia, and osculum in your response.