Across
- 2. Shows relation of various organisms
- 4. sponges, sessile, suspension feeders
- 5. Jellies, coral, anemonie, hydras
- 7. gives rise to circulatory system, muscles, organs, bone, etc.
- 8. occurred 550mya
- 11. only have an ecto and endoderm
- 12. direct evidence of morphology, where they lived, and when
- 13. term that describes organisms that are still alive
- 14. this organism lacks tissues and germ layers
Down
- 1. organisms that lay eggs
- 3. live within the organism/host
- 6. comb jellies, adhesive tenticles
- 9. mouth develops first
- 10. the type of symmetry that triploblasts have