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What else can I help you with?
Is a ray a jawless fish?
Jawless fish are included in subphylum Vertebrata, but most jawless fish do not have whole vertebrae. Hagfish, for instance, do not have vertebrae at all, and lampreys have only reduced vertebrae. So, no, most jawless fish are not vertebrates.
What are the 3 groups of fish. What are some of the differences that separate these groups?
The three main groups of fish are jawless fish (agnatha), cartilaginous fish (chondrichthyes), and bony fish (osteichthyes). Jawless fish, like lampreys and hagfish, lack jaws and have a simple body structure. Cartilaginous fish, such as sharks and rays, have a skeleton made of cartilage instead of bone. Bony fish possess a bony skeleton and include the vast majority of fish species, featuring a more complex anatomy, including swim bladders for buoyancy and gills covered by a bony operculum.
Give you some example of jawless fish?
Most fish are not jawless. There is a small group of very primitive fish called Jawless fish (Agnatha). However, they make up a very small proportion (<1%) of the fish species on earth. Jawless fish are things like lamprey and hagfish. All other fish, like trout, salmon, tuna, sharks, rays, cichlids, goldfish, etc, etc, have jaws. See the related link for more information on the primitive jawless fish.
Is a lamprey a amphibians?
No, a lamprey is not an amphibian. A lamprey is a fish, more specifically a jawless fish. It is one of the earliest forms of fish that is still alive today.
Are killer whales vertabrates or non vertabrates?
More than 95 percent of animals are invertebrates,or animals that doesn't have backbone.And vertebrate just have few,like,jawless fish,bony fish,cartilage,amphibians,birds,reptils,and mammals.So you can see that killer whales are mammals.The answer of your question is the killer whales are vertebrate.
How is the skeleton of a shark similar to the skeleton of a jaw less fish?
The skeleton of a shark, which is made of cartilage, shares similarities with the skeleton of jawless fish, such as lampreys and hagfish, which also have cartilaginous structures. Both groups lack true bones, relying instead on a flexible framework that provides support and shape. Additionally, both shark and jawless fish skeletons exhibit primitive features that reflect their evolutionary history as early vertebrates. However, sharks possess more complex structures and adaptations, including a more developed cranium and specialized fins.
What are facts about jawless fish?
Jawless fish are also called Agnatha which is Ancient Greek word means â??no jawâ??. They have long bodies but do not have backbones and look like eels.
Is a lamprey a vertebrate?
No, a lizard is not and amphibian it is a reptile because if it was and amphibian it would live in water. Plus it has scales...
What kind of skeleton does a jawless fish have?
Agnathans are the jawless fish. They are usually fairly small (a few centimeters in length.) They consist of lancelets and tunicates. They have a notochord which is like a backbone, but it is more flexible than bone. Tunicates are enveloped by a tough tunic around their bodies. Other than that, they have no other bones.
What are the most primitive fish?
The most primitive fish are typically represented by the jawless fish known as agnathans, which include species like lampreys and hagfish. These fish have a simple body structure and lack jaws, fins, and paired appendages, differentiating them from more advanced fish. They are considered some of the earliest vertebrates, having existed for hundreds of millions of years, providing insights into the evolution of more complex fish and vertebrates. Their unique characteristics make them a significant focus in studies of vertebrate evolution.
Which fish does not have bones?
Most fish have bones. Sharks and rays do not have bones but they do have bone-like structures that are made from cartilage.
What is vertebrate and invertebrates?
invertebrates are animals that have no back bone. Examples include...jawless fish. Vertebrates have back bones and are more common like humans!
