Across
- 2. Coldblooded body temperature depends on environment
- 3. Has both male and female reproductive organs
- 4. Free-swimming, bell-shaped body form (like jellyfish)
- 5. Fluid-filled system in echinoderms used for movement and feeding
- 7. Left and right sides are mirror images
- 8. No regular body shape or pattern
- 9. Flexible, rubbery tissue (softer than bone)
- 13. Gas-filled organ that helps fish control buoyancy
- 15. Sessile (attached), tube-shaped body form (like coral)
- 16. Organ that nourishes a developing baby inside the mother
- 18. Warmblooded maintains body temperature internally
- 20. Internal skeleton inside the body
Down
- 1. Animal without a backbone
- 4. Shedding an exoskeleton to grow
- 6. Animal with a backbone
- 10. Eggs with a protective shell and membranes (can survive on land)
- 11. Hard outer covering that supports and protects the body
- 12. Organs that produce milk for feeding young
- 14. Body parts arranged around a central point (like a starfish)
- 17. Asexual reproduction where a new organism grows off the parent
- 19. Living on or near the bottom of a body of water