WARM UP Classify the following animals into the appropriate phylum:

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Presentation transcript:

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

Sponges Notes Phylum Porifera

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

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

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

Reproduction Asexual Regeneration from parts Budding off main body

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

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.