How To Use Jawless fish In A Sentence
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The containing group of jawed vertebrates and jawless fishes is vertebrata.
A New Book
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The bony armor of the earliest jawless fish was dermal bone; so are shark scales, shoulder blades, and the roof of your skull.
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In going from amphioxus to jawless fish to jawed fish to land vertebrates we see an increase in complexity of the clotting cascade:
Behe's Test
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For example, the first gill arch in jawless fishes like lampreys (and in embryos of jawed vertebrates) corresponds to the jaws in those vertebrates that have them (that is, all modern vertebrates except lampreys and hagfishes).
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Sure, the jawless fish is doing quite well with out Factor V …. but look what it does have.
Behe's Test
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One is the jawless fish, the lampreys, an ancient group with just a few species in it.
Times, Sunday Times
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For example, the first gill arch in jawless fishes like lampreys (and in embryos of jawed vertebrates) corresponds to the jaws in those vertebrates that have them (that is, all modern vertebrates except lampreys and hagfishes).
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So, showing that the jawless fish doesn't have Christmas Factor doesn't really do much to his claim.
Behe's Test
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Jawless fishes and placoderms were also affected, although many placoderm lineages survived quite happily until the end Devonian.
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Even sharks are closer cousins to humans than they are to lampreys and hagfish the only modern survivors of the once thriving and diverse group of jawless fishes but again, we call them all fish.
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[[ostracoderm]] s jawless fish related to present-day [[lamprey]] s and
Conservapedia - Recent changes [en]
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Neither of these jawless fish has a bony skeleton, but most of the fossil groups listed on the cladogram had a fairly extensive covering of bony plates.
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Biologists could examine the many living animals (such as lancelets and sea squirts) that represented stages in the transition from the invertebrates to the earliest jawless fishes.
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With their armored head shield and trunk shield composed of overlapping bony plates, the placoderms appear at first glance extremely similar to the ostracoderms (armoured jawless fish).
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By examining fossils and DNA, Shubin shows us that our hands actually resemble fish fins, our head is organized like that of a long-extinct jawless fish, and major parts of our genome look and function like those of worms and bacteria.
The Panda's Thumb: Resources for Biologists Archives
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With their armored head shield and trunk shield composed of overlapping bony plates, the placoderms appear at first glance extremely similar to the ostracoderms (armoured jawless fish).
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The bony armor of the earliest jawless fish was dermal bone; so are shark scales, shoulder blades, and the roof of your skull.
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Even sharks are closer cousins to humans than they are to lampreys and hagfish the only modern survivors of the once thriving and diverse group of jawless fishes but again, we call them all fish.
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At a quick glance, jawless fish such as the lamprey above don't appear to have much in common with jawed fish or any other back-boned creature.
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[[ostracoderm]] s jawless fish related to present-day [[lamprey]]
Conservapedia - Recent changes [en]
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In traditional classifications, the hagfish, lampreys, and extinct armored jawless fish are grouped together in the paraphyletic Class Agnatha.
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The containing group of jawed vertebrates and jawless fishes is vertebrata.
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