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Question
Complete the following chart.
| Body cavity | Germ Layer | Phylum |
| Absent | ______ | Porifera |
| Absent | Triploblastic | ______ |
| Pseudocoelom | ______ | Aschelminthes |
| Present | ______ | Arthropoda |
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Solution
| Body cavity | Germ Layer | Phylum |
| Absent | Diploblastic | Porifera |
| Absent | Triploblastic | Platyhelminthes |
| Pseudocoelom | Triploblastic | Aschelminthes |
| Present | Triploblastic | Arthropoda |
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