1.
The class of cartilaginous fish that includes sharks, rays, and skates.
2.
Referring to the type of skeleton these fish have, made of cartilage rather than bone.
3.
A subclass of Chondrichthyes that includes sharks, skates, and rays.
4.
The small, tooth-like scales that cover the skin of sharks and rays.
5.
The pair of fins on each side of a shark or ray, used for steering and balance.
6.
The fin on the back of a shark or ray, which helps with stability.
7.
The tail fin of a shark or ray, used for propulsion.
8.
Specialized electroreceptor organs in the heads of sharks, used to detect
10.
An opening behind the eye of some sharks and rays that helps with breathing while at rest.
11.
A tail fin in which the upper lobe is larger than the lower lobe, characteristic of
13.
Reproduction in which eggs are laid outside the body and develop independently.
14.
Reproduction in which embryos develop inside the mother's body and are nourished by
16.
A combination of oviparous and viviparous reproduction, where eggs hatch inside
18.
A sensory system of canals and receptors that runs along the sides of a fish's body,
19.
changes in water pressure.
20.
A compound found in the liver of sharks, used for buoyancy.
21.
The family of rays, also known as eagle rays.
22.
The family of requiem sharks, which includes species like the bull shark and tiger
24.
The family of carpet sharks, including the wobbegongs.
25.
A type of cartilaginous fish also known as "ghost sharks" or "ratfish".
26.
The superorder of cartilaginous fish that includes all sharks.
