because sharks are big then rays and perch and goldfish..
they study sharks and rays
Both rays and sharks are cartilaginous fish with skeletons made of cartilage instead of bone. While rays typically have flat bodies and a ventral mouth, sharks have cylindrical bodies and teeth in multiple rows. Additionally, rays are generally bottom-dwellers while sharks are more active swimmers.
Chondrichyhyes is the animal class that includes cartilaginous fishes like sharks, rays and chimeras.
Placoid scales, also known as dermal denticles, are the tooth-like scales embedded in the skin of rays and sharks. They provide protection and reduce drag when swimming.
The three vertebrate classes of fish are: Agnatha (jawless fish without scales, e.g. lampreys and hagfish)Chondrichthyes (sharks and rays, which have skeletons of cartilage rather than bone)Osteichthyes (all the bony fish e.g. tuna, trout, whiting, etc.)
No goldfish aren't cartilaginous. However cartilaginous are like sharks, rays and skates.
Cartilaginous fish are mainly sharks and rays. They feed off bony fish, such as goldfish.
Enemies of pipefish are numerous and include perch, bass, and garpike. Other predators are sharks, devil rays, drum, and weakfish.
Sharks and Rays belong to the class Chondrichthyes, the cartilaginous or non-bony fishes.
no. cartilaginous fishes are sharks and rays.
Fish,squid,sharks and rays AnswerSeals eat Fish, squid, sharks, and rays.turdSkates,rays,squid,octopuses,small sharks, and large fish.These are just some of their favorites.
yes
yes
they study sharks and rays
SHARKS AND RAYS HAVE CARTILAGE SKELETONS,WHICH MEANS THEY ARE VERY FLEXIBLE. I THINK.(peytonallentranum)
rays
fishes, sharks, and rays