Arthropod & Crab - Unionpedia, the concept map

Abdomen

The abdomen (colloquially called the belly, tummy, midriff, tucky or stomach) is the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates.

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Arthropod mouthparts

The mouthparts of arthropods have evolved into a number of forms, each adapted to a different style or mode of feeding.

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Bacteria

Bacteria (bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell.

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Basal (phylogenetics)

In phylogenetics, basal is the direction of the base (or root) of a rooted phylogenetic tree or cladogram.

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Chitin

Chitin (C8H13O5N)n is a long-chain polymer of ''N''-acetylglucosamine, an amide derivative of glucose.

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Cladogram

A cladogram (from Greek clados "branch" and gramma "character") is a diagram used in cladistics to show relations among organisms.

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Cretaceous

The Cretaceous is a geological period that lasted from about 145 to 66 million years ago (Mya).

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Crown group

In phylogenetics, the crown group or crown assemblage is a collection of species composed of the living representatives of the collection, the most recent common ancestor of the collection, and all descendants of the most recent common ancestor.

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Crustacean

Crustaceans are a group of arthropods that are a part of the subphylum Crustacea, a large, diverse group of mainly aquatic arthropods including decapods (shrimps, prawns, crabs, lobsters and crayfish), seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, opossum shrimps, amphipods and mantis shrimp.

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Crustacean larva

Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form.

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Decapoda

The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, and includes crabs, lobsters, crayfish, shrimp, and prawns.

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Ecdysis

Ecdysis is the moulting of the cuticle in many invertebrates of the clade Ecdysozoa.

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Egg cell

The egg cell or ovum (ova) is the female reproductive cell, or gamete, in most anisogamous organisms (organisms that reproduce sexually with a larger, female gamete and a smaller, male one).

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Exoskeleton

An exoskeleton (from Greek έξω éxō "outer" and σκελετός skeletós "skeleton") is a skeleton that is on the exterior of an animal in the form of hardened integument, which both supports the body's shape and protects the internal organs, in contrast to an internal endoskeleton (e.g. that of a human) which is enclosed underneath other soft tissues.

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Exuviae

In biology, exuviae are the remains of an exoskeleton and related structures that are left after ecdysozoans (including insects, crustaceans and arachnids) have molted.

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Food and Agriculture Organization

The Food and Agriculture Organization of the United NationsOrganisation des Nations unies pour l'alimentation et l'agriculture; Organizzazione delle Nazioni Unite per l'alimentazione e l'agricoltura.

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Gill

A gill is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide.

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Greek language

Greek (Elliniká,; Hellēnikḗ) is an independent branch of the Indo-European family of languages, native to Greece, Cyprus, Italy (in Calabria and Salento), southern Albania, and other regions of the Balkans, the Black Sea coast, Asia Minor, and the Eastern Mediterranean.

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Internal fertilization

Internal fertilization is the union of an egg and sperm cell during sexual reproduction inside the female body.

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Japanese spider crab

The Japanese spider crab (Macrocheira kaempferi) is a species of marine crab and is the biggest one that lives in the waters around Japan.

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Jurassic

The Jurassic is a geologic period and stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya.

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Lobster

Lobsters are malacostracans of the family Nephropidae (synonym Homaridae).

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Molecular Phylogenetics and Evolution

Molecular Phylogenetics and Evolution is a peer-reviewed scientific journal of evolutionary biology and phylogenetics.

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Mollusca

Mollusca is the second-largest phylum of invertebrate animals, after Arthropoda; members are known as molluscs or mollusks.

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Monophyly

In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of taxa which meets these criteria.

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Ocypode ceratophthalmus

Ocypode ceratophthalmus, the horned ghost crab or horn-eyed ghost crab, is a species of ghost crab.

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Oxford University Press

Oxford University Press (OUP) is the publishing house of the University of Oxford.

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Paraphyly

Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages.

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Polyphyly

A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor.

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Sperm

Sperm (sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one).

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Telson

The telson is the hindmost division of the body of an arthropod.

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Thorax (arthropod anatomy)

The thorax is the midsection (tagma) of the hexapod body (insects and entognathans).

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