Invertebrates Crossword

1. Feeder Organisms that obtain food by filtering particles from the water, as seen in sponges.
6. Services Benefits provided by ecosystems to humans, such as water purification and pollination.
7. The variety of life within a specific ecosystem or habitat.
9. Specialized stinging cells found in cnidarians, used for defense and capturing prey.
10. External hard covering, typically made of chitin, providing support and protection, common in arthropods.
12. Describes organisms that are permanently attached to a substrate and do not move.
14. Destruction Alteration or elimination of natural habitats, often due to human activities

2. Animals lacking a backbone or vertebral column.
3. The preservation and sustainable management of natural resources and biodiversity.
4. Respiratory organs in aquatic organisms that extract oxygen from water.
5. Symmetry Symmetry around a central point, commonly seen in organisms like cnidarians and echinoderms.
8. A phylum of marine invertebrates including starfish, sea urchins, and sea cucumbers.
11. Reproduction Reproduction without the involvement of gametes, resulting in offspring genetically identical to the parent.
13. Vascular System Unique hydraulic system in echinoderms for movement, feeding, and respiration.