chelicerate उदाहरण वाक्य

While the marine horseshoe crabs rely on external fertilization, air-breathing chelicerates use internal but usually indirect fertilization.
The abdominal appendages of modern chelicerates are missing or heavily modified while those of horseshoe crabs ( Xiphosura ) form gills.
Except the chelicerates and proturans, which have none, all non-crustacean arthropods have a single pair of antennae.
The organs of this chelicerate extend throughout many appendages because its body is too small to accommodate all of them alone.
Another idea is that they belong to their own lineage, distinct from chelicerates, crustaceans, myriapods, or insects.

Like all arthropods, chelicerates have bristles for touch and for information about vibrations, air currents, and chemical changes in their environment.
It has more support among paleontologists who consider it a sister group to Arachnomorpha, which includes trilobites and chelicerates ( see cladogram below ).
Dalman and Lucas ( 2015 ) interpreted these regions as imprints of the chelicerae, prosoma, and opisthosoma, respectively, of a chelicerate arthropod.
In most chelicerate species the young have to fend for themselves, but in scorpions and some species of spider the females protect and feed their young.
Frequent chelicerates ( arthropods ) include trace and body fossils of xiphosurid merostomes and arachnids, including Phalangiotarbi and Trigonotarbida and also true spiders ( Araneida ).