Across 2. a type of sequential hermaphroditism in which an organism that is born male changes sex to become a female 3. calcareous structures found in the inner ear of fish that are used along with sensory membranes to detect sound, linear acceleration, and balance stimuli 8. the common name given to the egg case or capsule of some sharks, skates, and chimaeras (2 Words) 11. pigment containing cells that function in color changes 12. fish lives its adult life in freshwater but returns to the sea to reproduce 14. a type of sequential hermaphroditism in which an organism that is born female changes sex to become a male 15. animals filter-feed on small nonphotosynthetic organisms in the plankton barbels, slender tactile organs containing taste buds 17. modified pelvic fins used by sharks and rays in sperm transfer 19. a marine biologist who studies various species of fish classified as bony, cartilaginous, or jawless 22. a transparent third eyelid that protects the eye while maintaining visibility (2 Words) 24. the sensation of smell that results from the detection of odorous substances in the environment 25. the bright, showy, color patterns often seen in reef fish that advertise territorial ownership, aid in maintaining schools, or are used in sexual displays (2 Words) 26. group of fish swimming in the same direction in a coordinated manner 27. each of a pair of fins situated on either side just behind a fish's head, helping to control the direction of movement during locomotion (2 Words) 28. slender tactile organs containing taste buds 29. located at the end of the caudal peduncle and is used for propulsion (2 Words) 30. an internal gas-filled organ that allows a ray-finned fish to control its buoyancy (2 Words)

Down 1. fishes spend their adult lives in the sea but ascend rivers for spawning 4. a stiff flap of tissue that covers the gills of ray-finned fishes and chimaeras 5. the bright coloration used by organisms to warn potential predators that they are distasteful or poisonous (2 Words) 6. an unpaired fin located on the underside of a fish posterior to the anus (2 Words) 7. the series of bones or cartilages that surround the spinal cord and constitute the spinal column of vertebrate organisms 9. refers to a body shape characterized by tapering at both the head and the tail 10. the use of different coloration on upper and lower body surfaces as a means of camouflage 13. a fin located on the back of most marine and freshwater vertebrates (2 Words) 16. extend beyond the end of the vertebral column and are symmetrical 18. a low-density lipid that is often stored in the tissues of cartilaginous fishes 20. small openings located behind the eyes of sharks and rays that serve as an opening for water entering the gill chamber when the animal is at rest 21. tail is an asymmetrical fin; vertebrae extend into its larger lobe 23. sensory organ found in aquatic organisms that is used to detect vibration and movement in the surrounding water (2 Words)