Download Porifera, Cnidaria Worksheet

Biology 11
PLO G1-2: Kingdom Animailia:
Porifera, Cnidaria
Worksheet
Unit 9 Lessons 1 to 4
1. Use a Venn diagram (see Study Skill Technique web site) to
compare and contrast the Phylum Porifera and the Phylum
Cnidaria. (5 marks)
PORIFERA
CNIDARIA
DIFFERENCES
2. Describe the process of filter feeding in a sponge. Please use
words (2 marks) and a diagram (2 marks) in your answer.
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3. What are the ecological roles of sponges and cnidarians. (2 marks)
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4. Use a comparison-contrast organizer (see Study Skill Technique
web site) to compare and contrast polyp and medusa with
respect to structure, general function, and motility. (6 marks)
Cnidarian Form: Polyp
Medusa
Structure
General Function
Motility
5. What is the key advantage of the motile form in the life cycle of a
Cnidarian? (1 mark)
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6. What is the evolutionary significance of multicellular (e.g.
Cnidarian) versus colonial (porifera) life forms? (1 mark)
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