Across
- 2. sensory organ; detects movement, pressure, and vibrations
- 5. eggs develop externally
- 9. inner eyelid that protects eye
- 11. eggs develop internally without nourishment from mother
- 12. stage of oyster life cycle where a foot is developed
- 13. born in and reproduce in freshwater, but live majority of their lives in salt water
- 14. unorganized group of fish
- 15. cell containing pigment that produces color
- 18. bony fish
- 19. cartilaginous fish
- 20. dark top and light belly to help fish blend in from above and below with ground and sky
Down
- 1. embryo develops without fertilization
- 3. organ that allows fish to be buoyant
- 4. sensory organ; picks up small electrical fields
- 6. eggs develop internally with nourishment from mother
- 7. Jawless fish
- 8. born in and reproduce in salt water, but live majority of their lives in fresh water
- 10. protein that gives tuna extra oxygen
- 16. contain guanine crystal that reflect light; give fish shimmery appearance
- 17. protective covering of the gills