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class cyclostomata are without jaws

there eg are :

petromyzon

myxine

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Which group of arthropods lack jaws?

Chelicerates (crabs, Pycnogonida, and Mercostonata) are arthropods that lack jaws.


Jaws found on some arthropods?

chelicerates


What are the jaws found on some arthropods?

chelicerates


How does the mandible of arthropods open differently than the jaws of humans?

The mandibles of arthropods open side to side. The jaws of humans open up and down.


What is the Biggest group of arthropods?

Chelicerates are a group of arthropods that lack jaws. Examples of chelicerates include horseshoe crabs, mites, ticks, spiders, and scorpions. Arthropods that have jaws are classified as mandibulates.


What is the function of mandibles in arthropods?

Mandibles are jaws and are used for eating.


What do you call the jaw of an arthropod?

Well, actually, arthropods don't have jaws, but I know what you mean. Arthropods have mandibles. Mandibles open side to side, which is great for slicing and tearing!


One of the two cartilaginous fish that lack jaws is the?

Lampreys


Crustaceans are the only arthropods that have?

Crustaceans have exoskeletons, two pairs of antennae, two pairs of maxillae, biramous legs, and mandibles, which are like jaws.


What classes of fish lack paired fins and jaws?

Myxini, the hagfishesLampreys are as well, but their class has not been determined.


Why are arthropods called arthropods?

They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.


Name of the fish has no jaws or paired fins?

Hagfish. Hagfish are primitive marine animals that belong to the class Myxini. They are known for their lack of jaws and paired fins.