Week 10 review
Across
- 2. outermost germ layer (epidermis nad nervous tissue develop from this)
- 4. body plan with adult structures arising from only two cell layers (endoderm and mesoderm)
- 7. middle layer of three germ layers (muscular, skeletal, vascular, and connective tissues develop from this).
- 12. grouping of animal species without tissues
- 14. indicating the tail end of an animal
- 15. animals
- 18. innermost germ layer that develops into the GI tract, and respiratory organs in some animals
- 19. body plan having three primary germ layers
- 22. animal without a vertebral column
- 24. indicating the belly side of an animal
- 25. a haploid cell, (an egg or sperm)
Down
- 1. thin tissue derived from mesoderm that lines the abdominal wall and covers most organs in the abdomen
- 3. vertebrates are members of this phylum
- 5. animals with a body cavity lacking a complete lining derived from mesoderm
- 6. developement of na anterior end with a high concentration of sensory organs and nervous system tissue
- 8. animals lacking a body cavity between the gut and the body wall
- 9. indicating the back side of an animal
- 10. a group of cells and intercellular substances with the same structure that funciton as a unit to carry out one or more specialized tasks.
- 11. a fluid-filled body cavity in bilaterally symmetrical animals htat is completely lined with derivatives of mesoderm.
- 13. indicating the head end of an animal
- 16. a fertilized egg
- 17. capable of self-propelled movement
- 20. acquires energy and nutrients by eating other organisms or their remains
- 21. grouping of animal species with tissues
- 23. unable to move from one place to another