What's the difference between crustacea and exoskeleton?
Crustacea
Definition:
(n. pl.) One of the classes of the arthropods, including lobsters and crabs; -- so called from the crustlike shell with which they are covered.
Example Sentences:
(1) The tubular system in crustacea is necessary for excitation-contraction coupling.
(2) On the other hand, the major arsenic compound in fish, crustacea and molluscs has been identified as arsenobetaine, which is an arseno-analog of glycinebetaine, a very common osmo-regulator in living organisms.
(3) The development of microparticulate food particles for marine suspension-feeders is discussed with respect to the difficulties of nutrient delivery in the aquatic environment and to feeding and digestion in crustacea and bivalve molluscs.
(4) The xiphidio-cercaria monostomous, anenterous in type, is liberated in water and actively penetrates a Crustacea Gammarus pulex where it encysts.
(5) Of the brightly fluorescent areas in the whole of Crustacea, only the central body consistently exists in all species.
(6) The X-organ sinus gland is a major peptidergic neurosecretory system in Crustacea, analogous to the vertebrate hypothalamoneurohypophyseal system.
(7) It is tentatively concluded that a core of DNA base sequence homology has been highly conserved throughout the evolution of the Crustacea.
(8) Extrahepatic organs from fish and crustacea usually had higher GSH S-transferase activities than epoxide hydrase activities with the alkene and arene oxide substrates.
(9) Crossed radioimmunoelectrophoresis (CRIE) demonstrated 6 crawfish and 4 lobster allergens when individual or pooled sera from radioallergosorbent test (RAST)-positive crustacea-sensitive subjects were used.
(10) Flatfish, mainly in the form of plaice, and crustacea were found to be the main source of organic arsenic compounds.
(11) Finally, we present evidence that shows that the class I MTs in marine crustacea are involved in the sequestration of elevated levels of heavy-metal ions.
(12) A simple model for growth, molting, and regeneration in heavily calcified Crustacea is developed from the viewpoint of adaptive strategies and energetic considerations.
(13) Vibrio cholerae, an autochthonous member of brackish water and estuarine bacterial communities, also attaches to crustacea, a significant factor in multiplication and survival of V. cholerae in nature.
(14) Hemocyanin has been used as a protein marker for Crustacea speciation.
(15) Glutamate induced responses in the surface membrane of Xenopus oocyte by injection with mRNA from crustacea and insect muscle.
(16) In this study we have analyzed the sterol compositions of two continental shelf species of crustacea, the lobster (Homarus americanus) and the shrimp (Pandalus borealis).
(17) Research on the transmission of Hemiurid Trematode Halipegus ovocaudatus in experimental and natural conditions demonstrates the following: --the miracidium grows into a sporocyst producing rediae in the Mollusc Planorbis planorbis; -- the cystophorous cercariae become mesocercariae in the hemocoele of Copepodes or finally Ostracodes when swallowed; -- the mesocercariae become matacercariae in the mesenteron of larval Odonates (Zygoptera and Anisoptera) when these larvae swallow the Crustacea; -- the metacercariae become become adults in the Amphibial Rana ridibundal perezi which feeds on dragonflies.
(18) Consistent results were obtained not only with the cuticle of Periplanata americana but also with the cuticle of Emerita asiatica (crustacea).
(19) (Protozoa: Microspora) from larval Aedes cantator mosquitoes were directly infectious to an alternate copepod host, Acanthocyclops vernalis (Arthropoda: Crustacea).
(20) Astacus astacus L. (Crustacea: Decapoda) were estimated by several biochemical and histochemical methods.
Exoskeleton
Definition:
(n.) The hardened parts of the external integument of an animal, including hair, feathers, nails, horns, scales, etc.,as well as the armor of armadillos and many reptiles, and the shells or hardened integument of numerous invertebrates; external skeleton; dermoskeleton.
Example Sentences:
(1) King crabs (Family Lithodidae) are among the world's largest arthropods, having a crab-like morphology and a strongly calcified exoskeleton.
(2) "It confirms our prediction that we are going to elicit a sensation that the exoskeleton is an extension of their body," Nicolelis said.
(3) These principles may look tricksy or artificial when described rather than experienced but are not, says Catton, an "exoskeleton" – rather they are entirely bound up with the ideas of the book.
(4) In view of the small molecular size and high lipid solubility of methyl mercury and the lipophilic properties of the chitin-protein exoskeleton of the lobster, it is likely that significant uptake directly from the water as well as storage of absorbed methyl mercury occurred in the tail region.
(5) Freed of the need to wave their tentacles around to hunt for food, the coral can devote more energy to secreting the mineral calcium carbonate, from which they form a stony exoskeleton.
(6) The exoskeleton is fitted with multiple gyros to stop it falling over during the balancing act of bipedal walking.
(7) Replicas of porous hydroxyapatite that had been obtained after hydrothermal conversion of the calcium carbonate exoskeleton of coral (genus Goniopora) were implanted intramuscularly in twenty-four adult male baboons (Papio ursinus).
(8) Wild P. monodon exoskeleton contained on average 26.3 ppm total carotenoid; normally pigmented farmed shrimp had a similar concentration (25.3 ppm).
(9) Trace metals associated with insects can be both bound on the surface of their chitinous exoskeleton and incorporated into body tissues.
(10) Yet Ekso is notable not only for its technology and the price tag (£100,000 for the exoskeleton which it hopes to lower to £50,000 within the next two years), but its ambitious plans.
(11) The robotics work was coordinated by Gordon Cheng at the Technical University in Munich, and French researchers built the exoskeleton.
(12) Spores of T. cylindrosporum are able to adhere to the exoskeleton and penetrate it.
(13) Solubilization of the exoskeleton occurs around an area of the elaborately infolded surface membrane at the anterior of the organism.
(14) If the sight of Robert Downey Jr summoning his Iron Man accessories from across a room gave you a taste for having your own powered exoskeleton, your wish may soon be granted.
(15) Soldiers wearing bionic exoskeletons leap over trucks, firing bizarre “directed energy” weapons that send out fatal force waves.
(16) In an age when Tony Stark's exoskeleton tops the box-office charts in Avengers Assemble, and Pistorius competes in both the Olympics and Paralympics, Ekso thinks there's a demand for robotic suits that not only aid disabled people, but enhance the abilities of everyone.
(17) Two bursts of exoskeleton hardening and growth of the poison gland apparatus corresponds with a transitional period in the behavioral development of workers and finally with their development into nest defenders and foragers.
(18) We realized however, that these studies may not have fully appreciated the structure of the insect exoskeleton.
(19) But this is just one of the stories emerging: see also 3Ders' piece on a four-year old called Hannah , with a condition called arthrogryposis that limits her ability to lift her arms unaided, but who now has a Wilmington Robotic Exoskeleton (WREX for short) to help, made using 3D printing.
(20) Campaniform sensilla are proprioceptive mechanoreceptors associated with the exoskeleton.