INVERTEBRATES

2. in arthropods.
7. and clams.
8. Organisms that primarily feed on plants.
10. Animals lacking a backbone or vertebral column.
11. identical to the parent.
12. Division of an organism's body into repeating structures or segments.
14. Symmetry: Symmetry around a central point, commonly seen in organisms like cnidarians and
16. Organisms that primarily feed on other animals.
18. A taxonomic rank in biological classification, grouping organisms based on shared
19. The variety of life within a specific ecosystem or habitat.
20. A biological community of interacting organisms and their physical environment.
21. Shell: Protective structure typically composed of calcium carbonate, found in mollusks like
22. Specialized stinging cells found in cnidarians, used for defense and capturing prey.

1. External hard covering, typically made of chitin, providing support and protection,
2. The preservation and sustainable management of natural resources and biodiversity.
3. Reproduction: Reproduction without the involvement of gametes, resulting in offspring
4. Respiratory organs in aquatic organisms that extract oxygen from water.
5. Vascular System: Unique hydraulic system in echinoderms for movement, feeding, and
6. Destruction: Alteration or elimination of natural habitats, often due to human activities.
9. Describes organisms that are permanently attached to a substrate and do not move.
13. Feeder: Organisms that obtain food by filtering particles from the water, as seen in sponges.
15. Services: Benefits provided by ecosystems to humans, such as water purification and
17. A phylum of marine invertebrates including starfish, sea urchins, and sea