Chondrichtheyes vocab

1. a combination of oviparous and viviparous reproduction, where eggs hatch inside the mothers body
4. a type of cartilaginous fish also known as ghost sharks or ratfish
5. specialized eletroeceptor organs in the heads of sharks used to detect electric fields
6. a tail fin in which the upper lobe is larger than the lower lobe, characteristics of sharks
9. family of requiem sharks, which includes species like the bull shark and tiger shark
11. a compound found in the liver of sharks used for buoyancy.
12. the small, tooth-like scales that cover the skin of sharks and rays.
15. reproduction in which embryos develop inside the mothers body are are nourished by the mother
19. the fin on the back of a shark or ray, which helps with stability.

2. the pair of fins on each side of a shark or ray, used for steering and balance
3. the superorder of cartilaginous fish that include all sharks.
4. class of cartilaginous fish that includes sharks, rays, and skates.
7. reporduction in which eggs are laied outside the body and develop independently
8. the tail fin of a shark or ray used for propulsion
10. A subclass of Chondrichthyes that include sharks skates and rays.
13. referring to the type of skeleton these fish have, made of cartilage rather than bone.
14. a sensory system of canals and receptors that runs along the sides of a fish's body, detecting changes in water pressure
16. the family of carpet sharks including wobbegongs
17. the family of rays also known as eagle rays
18. an opening behind the eyes of some sharks and rays that help with breathing while at rest