1a. Phylum Porifera. Sponges have no
mouths! Describe how a sponge takes in food and eats
1b. Phylum Cnidaria. The life cycle of the moon
jelly—like many (but not all) Cnidarians— includes both polyp and
medusa forms. b) What is one adaptive benefit of having a life
history with both a polyp and medusa form instead of just one or
the other
1c. Phylum Chordata. Briefly explain how
gene duplication and development of flexible jaws led to the
success of vertebrates.
i. Gene duplication:
ii. Flexible jaws:
1a. Phylum Porifera. Sponges have no mouths! Describe how a sponge takes in food and eats 1b. Phylum Cnidaria. The life
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1a. Phylum Porifera. Sponges have no mouths! Describe how a sponge takes in food and eats 1b. Phylum Cnidaria. The life
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