Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Arthropod> ?p ?o }
- Arthropod abstract "An arthropod (from Greek arthro-, joint + podos, foot) is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages. Arthropods form the phylum Arthropoda, and include the insects, arachnids, myriapods, and crustaceans. Arthropods are characterized by their jointed limbs and cuticle made of chitin, often mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. The rigid cuticle inhibits growth, so arthropods replace it periodically by moulting. Their versatility has enabled them to become the most species-rich members of all ecological guilds in most environments. They have over a million described species, making up more than 80% of all described living animal species, some of which, unlike most animals, are very successful in dry environments. They range in size from the microscopic crustacean Stygotantulus up to the Japanese spider crab. Arthropods' primary internal cavity is a hemocoel, which accommodates their internal organs, and through which their haemolymph - analogue of blood - circulates; they have open circulatory systems. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. Their nervous system is "ladder-like", with paired ventral nerve cords running through all segments and forming paired ganglia in each segment. Their heads are formed by fusion of varying numbers of segments, and their brains are formed by fusion of the ganglia of these segments and encircle the esophagus. The respiratory and excretory systems of arthropods vary, depending as much on their environment as on the subphylum to which they belong.Their vision relies on various combinations of compound eyes and pigment-pit ocelli: in most species the ocelli can only detect the direction from which light is coming, and the compound eyes are the main source of information, but the main eyes of spiders are ocelli that can form images and, in a few cases, can swivel to track prey. Arthropods also have a wide range of chemical and mechanical sensors, mostly based on modifications of the many setae (bristles) that project through their cuticles. Arthropods' methods of reproduction and development are diverse; all terrestrial species use internal fertilization, but this is often by indirect transfer of the sperm via an appendage or the ground, rather than by direct injection. Aquatic species use either internal or external fertilization. Almost all arthropods lay eggs, but scorpions give birth to live young after the eggs have hatched inside the mother. Arthropod hatchlings vary from miniature adults to grubs and caterpillars that lack jointed limbs and eventually undergo a total metamorphosis to produce the adult form. The level of maternal care for hatchlings varies from nonexistent to the prolonged care provided by scorpions.The evolutionary ancestry of arthropods dates back to the Cambrian period. The group is generally regarded as monophyletic, and many analyses support the placement of arthropods with cycloneuralians (or their constituent clades) in a superphylum Ecdysozoa. Overall however, the basal relationships of Metazoa are not yet well resolved. Likewise, the relationships between various arthropod groups are still actively debated.Arthropods contribute to the human food supply both directly as food, and more importantly as pollinators of crops. Some specific species are known to spread severe disease to humans, livestock, and crops.".
- Arthropod kingdom Animal.
- Arthropod kingdom Eumetazoa.
- Arthropod phylum Ecdysozoa.
- Arthropod thumbnail Arthropoda.jpg?width=300.
- Arthropod wikiPageExternalLink chapter_07.htm.
- Arthropod wikiPageExternalLink JOINTED_LEGGED_ANIMALS_ARTHROPODA_6050_488.aspx.
- Arthropod wikiPageID "19827221".
- Arthropod wikiPageLength "84117".
- Arthropod wikiPageOutDegree "505".
- Arthropod wikiPageRevisionID "683624298".
- Arthropod wikiPageWikiLink Abdomen.
- Arthropod wikiPageWikiLink Acanthomeridion.
- Arthropod wikiPageWikiLink Acceleration.
- Arthropod wikiPageWikiLink Aedes.
- Arthropod wikiPageWikiLink Allergic_rhinitis.
- Arthropod wikiPageWikiLink Allergy.
- Arthropod wikiPageWikiLink American_lobster.
- Arthropod wikiPageWikiLink Ammonia.
- Arthropod wikiPageWikiLink Amniote.
- Arthropod wikiPageWikiLink Anatomical_terms_of_location.
- Arthropod wikiPageWikiLink Animal.
- Arthropod wikiPageWikiLink Animal_husbandry.
- Arthropod wikiPageWikiLink Annelid.
- Arthropod wikiPageWikiLink Annelida.
- Arthropod wikiPageWikiLink Anomalocarid.
- Arthropod wikiPageWikiLink Anomalocarida.
- Arthropod wikiPageWikiLink Anomalocaris.
- Arthropod wikiPageWikiLink Anopheles.
- Arthropod wikiPageWikiLink Antenna_(biology).
- Arthropod wikiPageWikiLink Anus.
- Arthropod wikiPageWikiLink Appendage.
- Arthropod wikiPageWikiLink Aquatic_animal.
- Arthropod wikiPageWikiLink Arachnid.
- Arthropod wikiPageWikiLink Arachnida.
- Arthropod wikiPageWikiLink Arachnids.
- Arthropod wikiPageWikiLink Argulidae.
- Arthropod wikiPageWikiLink Artery.
- Arthropod wikiPageWikiLink Arthropod_cuticle.
- Arthropod wikiPageWikiLink Arthropod_head_problem.
- Arthropod wikiPageWikiLink Arthropod_leg.
- Arthropod wikiPageWikiLink Articulata_Hypothesis.
- Arthropod wikiPageWikiLink Articulata_hypothesis.
- Arthropod wikiPageWikiLink Asthma.
- Arthropod wikiPageWikiLink Atelocerata.
- Arthropod wikiPageWikiLink Attercopus.
- Arthropod wikiPageWikiLink Auditory_ossicle.
- Arthropod wikiPageWikiLink Aysheaia.
- Arthropod wikiPageWikiLink Aztec.
- Arthropod wikiPageWikiLink Bacteria.
- Arthropod wikiPageWikiLink Barnacle.
- Arthropod wikiPageWikiLink Basal_(evolution).
- Arthropod wikiPageWikiLink Basal_(phylogenetics).
- Arthropod wikiPageWikiLink Bee.
- Arthropod wikiPageWikiLink Beekeeper.
- Arthropod wikiPageWikiLink Bilateria.
- Arthropod wikiPageWikiLink Biodiversity.
- Arthropod wikiPageWikiLink Biological_control.
- Arthropod wikiPageWikiLink Biological_pest_control.
- Arthropod wikiPageWikiLink Biomimesis.
- Arthropod wikiPageWikiLink Biomimetics.
- Arthropod wikiPageWikiLink Biomineralization.
- Arthropod wikiPageWikiLink Biramous.
- Arthropod wikiPageWikiLink Bird.
- Arthropod wikiPageWikiLink Blood.
- Arthropod wikiPageWikiLink Blood_cell.
- Arthropod wikiPageWikiLink Body_plan.
- Arthropod wikiPageWikiLink Book_lung.
- Arthropod wikiPageWikiLink Brachiopod.
- Arthropod wikiPageWikiLink Brain.
- Arthropod wikiPageWikiLink Branchiopoda.
- Arthropod wikiPageWikiLink Branchiura.
- Arthropod wikiPageWikiLink Brine_shrimp.
- Arthropod wikiPageWikiLink Cole.
- Arthropod wikiPageWikiLink Burgess_Shale.
- Arthropod wikiPageWikiLink Butterfly_house_(conservatory).
- Arthropod wikiPageWikiLink Calcium_carbonate.
- Arthropod wikiPageWikiLink Cambodia.
- Arthropod wikiPageWikiLink Cambrian.
- Arthropod wikiPageWikiLink Cambrian_explosion.
- Arthropod wikiPageWikiLink Camptophyllia.
- Arthropod wikiPageWikiLink Cancer.
- Arthropod wikiPageWikiLink Carboniferous.
- Arthropod wikiPageWikiLink Category:Animal_phyla.
- Arthropod wikiPageWikiLink Category:Arthropods.
- Arthropod wikiPageWikiLink Category:Cambrian_first_appearances.
- Arthropod wikiPageWikiLink Caterpillar.
- Arthropod wikiPageWikiLink Cengage_Learning.
- Arthropod wikiPageWikiLink Cenozoic.
- Arthropod wikiPageWikiLink Centipede.
- Arthropod wikiPageWikiLink Cephalocarida.
- Arthropod wikiPageWikiLink Chelicerae.
- Arthropod wikiPageWikiLink Chelicerata.
- Arthropod wikiPageWikiLink Chelicerate.
- Arthropod wikiPageWikiLink Chilopoda.
- Arthropod wikiPageWikiLink Chitin.
- Arthropod wikiPageWikiLink Circulatory_system.
- Arthropod wikiPageWikiLink Cochineal.
- Arthropod wikiPageWikiLink Cockroach.
- Arthropod wikiPageWikiLink Codex_Alimentarius.