Across
- 3. An animal or plant that has both male and female productive organs
- 7. sessile life stage of certain cnidarians, typically attached to a substrate
- 11. An internal skeleton that supports the body, found in vertebrates
- 12. free-swimming, umbrella-shaped life stage of certain cnidarians like jellyfish
- 13. Symmetry around a central axis, like in starfish or jellyfish
- 15. Symmetry where the body can be divided into two identical halves along one plane
- 16. organisms that live on or near the bottom of a water body
- 17. Animals that rely on external sources of heat to regulate their body temperature, often referred to as cold-blooded
- 18. A form of asexual reproduction where a new organism develops from an outgrowth or bud on the parent
- 19. Glands in female mammals that produce milk to nourish their young
- 21. Animals with a backbone
Down
- 1. An internal gas-filled organ that helps fish maintain buoyancy in water
- 2. A flexible connective tissue found in various parts of the body, such as joints and the nose
- 4. A hard outer structure that provides support and protection, found in arthropods
- 5. Animals that can regulate their body temperature internally, often referred to as warm-blooded
- 6. Vascular System A network of fluid-filled canals in echinoderms (like starfish) used for movement and feeding
- 8. An organ that develops the fetus, allowing for nutrient and waste exchange during pregnancy
- 9. The process of shedding an outer layer, such as skin or an exoskeleton
- 10. A lack of symmetry
- 14. Animals that lack a backbone
- 20. Eggs that have a protective amniotic membrane, allowing for development outside of water, characteristic of reptiles, birds, and mammals
