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The shark is an very old animal; it has been in the sea for a very long time; it has new teeth constantly; its teeth are a modification of the outer skin of the shark; it is an endangered species because it is good to eat and the oceans are overfished. The reason the oceans are overfished is that governments cant get together and figure out that we all need a working ocean...together. The sharks, all species, are elasmobranchs. That, when you look it up, tells you all about their physical structure.
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What is a great white sharks social structure?
social structure
Does whales and sharks and dolphins have the saem homologous structure?
no.
What is the structure that connects the pharynx with the crop in the earthworm?
it has nothing to do with sharks.
Are stingrays cartilaginous?
Yes, this is the same body structure category as the sharks.
Are sharks vertebrates?
Yes, but they are different from other vertebrates in that their backbones are made of cartilage, like the rest of their skeletal structure.
Are sharks strong or weak?
Shark are a specie of fish with strong teeth structure. Sharks have a strong body movement and can swim against the flow of water. Moreover, they have teeth's that can tear apart their prey instantly.
What structure does bony fish have that sharks don't?
They can lay eggs but not sharks they have live kids by humping on each other.
Is the pelvis a vestigial structure for a shark?
I don't really sharks have a pelvis, yes they have pelvic fins but i believe its in reference to the area its in. Sharks don't have pelvis because they are fish not mammals.
What is the job called that you can study sharks?
A marine biologist studies sharks. Elasmobranchology is the study of sharks. Sharks resemble the true fishes in external form, but differ from them so widely in structure that they are placed in a class by themselves.
Why are whale sharks sharks not whales?
1) Whales are mammals and do not have gills, they come to the surface to breathe.2) Whale Sharks have gills and as other sharks receive oxygen through the water.3) Whales sharks have the same cartilaginous skeleton structure as other sharksTthe reason its called WHALE shark is because it is the largest of all the sharks, and as whales are the currently biggest mammals on the earth it only seems appropriate.No. it isn't a reptile.
What are the similarities and differences between a shark and a whale?
There are many similarities and differences between a shark and a whale. The similarities is that have a similar streamlined body structure but the differences are many including sharks are fish while whales are mammals, sharks have a vertical tail structure while whales have a horizontal one among others.
What kind of a fish is a hammer head?
The hammerhead sharks are a group of sharks in the family Sphyrnidae, so named for the unusual and distinctive structure of their heads, which are flattened and laterally extended into a "hammer" shape called a "cephalofoil".
