What's the difference between arachnid and insect?

Arachnid


Definition:

  • (n.) An arachnidan.

Example Sentences:

  • (1) Electron microscopy has revealed that chitin from a representative selection of insect orders (plus one crustacean and one arachnid) is localized in crystallites about 2.8 nm across.
  • (2) Necrotic arachnidism was seen only in areas where populations of Tegenaria agrestis spiders were well established and did not occur where Tegenaria agrestis was absent.
  • (3) The variable sensibility of the spiders towards an equal amount of hormones allows us to confirm the occurrence of winter-diapause in this Arachnid.
  • (4) Camel Spiders Photograph: James Mccauley Focusing on the Solifugae arachnid rather than the far scarier camel-spider hybrid I first pictured, Camel Spiders is the latest film from Jim Wynorski, director of Busty Cops Go Hawaiian, The Wasp Woman and Dinocroc Vs Supergator.
  • (5) It was concluded that collagenase is a major factor in the aetiology of necrotic arachnidism.
  • (6) The geographical spread of Tegenaria agrestis spiders parallels the appearance of necrotic arachnidism in several areas.
  • (7) These intramembranous particle rows are novel structural modifications, called here 'linker' junctions, and are quite distinct from conventional tight or septate junctions found between the outer glial cells in more highly evolved arthropods such as the insects and arachnids.
  • (8) His Spider design is particularly fun, coming from "the interpretation of the ultimate heavy metal instrument through the lens of arachnids".
  • (9) There is an association of cytoskeletal components with these septate, linker, and tight junctions; the role of the cytoskeleton in tight junctions, which can be seen by freeze fracture to be based on simple ridges in insects or a more complex network of them in arachnids, may also be important in the regulation of paracellular permeability.
  • (10) Cross says that these arachnids, also known as vampire spiders, “love” feeding on human blood as it gives them an odour that renders them sexually attractive to potential mates.
  • (11) Guanine is the major nitrogenous waste product in arachnids.
  • (12) Ivermectin is a macrocyclic lactone (fermentation) product and actinomycete (Streptomyces avermitilis) that possesses an unusually broad spectrum of potent activity against several species of nematodes, arachnids, and insects that parasitize domestic animals.
  • (13) Necrotizing dermatitis, or arachnidism, is a new life-threatening syndrome of which many clinicians are unaware.
  • (14) A comparative analysis of cardiotropic activity of toxins has been studied in experiments on isolated heart of the poisonous animals from different systematic groups living on the territory of the USSR: reptiles (the venom of cobra, Vipera lebetina, Ancistrodon blomhoffi), amphibian (the venom of Bufo, Bombina, salamander), arachnids (the venom of Apis, Scolopendra, scorpion).
  • (15) Such a system is unknown in insects or crustaceans, but may be typical for arachnids.
  • (16) Similar to the heavily armoured arachnid seen in the E3 demo, it takes multiple hits to bring down, and coordinating fire from the three team members is crucial.
  • (17) Although they are very common arachnids, the scorpions (Euscorpius, sp.)
  • (18) Absorption spectra of visual screening pigments obtained in vitro with a microspectrophotometer using frozen sections are given for the insects Musca domestica, Phormia regina, Libellula luctuosa, Apis mellifera (worker honeybee only), Drosophila melanogaster (wild type only) and the arachnids Lycosa baltimoriana and Lycosa miami.
  • (19) Arachnidism can be manifested either through the skin or systemically.
  • (20) Since guanine is not only an essential constituent of vital nucleic acids, but also the main end product of nitrogenous waste excretion in arachnids, it is a potential candidate for a hygienic index for mite activity in house dust.

Insect


Definition:

  • (n.) One of the Insecta; esp., one of the Hexapoda. See Insecta.
  • (n.) Any air-breathing arthropod, as a spider or scorpion.
  • (n.) Any small crustacean. In a wider sense, the word is often loosely applied to various small invertebrates.
  • (n.) Fig.: Any small, trivial, or contemptible person or thing.
  • (a.) Of or pertaining to an insect or insects.
  • (a.) Like an insect; small; mean; ephemeral.

Example Sentences:

  • (1) Employed method of observation gave quantitative information about the influence of odours on ratios of basic predeterminate activities, insect distribution pattern and their tendency to choose zones with an odour.
  • (2) Suspensions of isolated insect flight muscle thick filaments were embedded in layers of vitreous ice and visualized in the electron microscope under liquid nitrogen conditions.
  • (3) After treatment of larvae of instar 1 at preimago stages about 77% of the insects died.
  • (4) The presence of potential insect vectors and the occurrence of clinical signs are indications of active transmissions.
  • (5) Spectrophotometric tests for the presence of a lysozyme-like principle in the serum also revealed similar trends with a significant loss of enzyme activity in 2,4,5-T-treated insects.
  • (6) Radiation inactivation and simple target theory were employed to determine the molecular weight of an insect CNS alpha-bungarotoxin binding component in the presence and absence of a cross-linking reagent, dimethyl suberimate.
  • (7) Bacillus thuringiensis subspecies kurstaki (Btk) and subspecies berliner (Btb) both produce lepidopteran-specific larvicidal protoxins with different activities against the same insect species.
  • (8) Phyla as diverse as insects, birds, and mammals possess distinct HRAS and KRAS sequences, suggesting that these genes are essential to metazoa.
  • (9) Compounds identified as sex attractant pheromones in a number of phytophagous insects were found in a variety of host plants.
  • (10) casseliflavus from 43.5% of members of the 37 taxa of insects.
  • (11) This is the first demonstration of a 2-hydroxylated carotenoid in an insect.
  • (12) Among the most highly expressing transformed plants for each gene, the plants with the partially modified cryIA(b) gene had a 10-fold higher level of insect control protein and plants with the fully modified cryIA(b) had a 100-fold higher level of CryIA(b) protein compared with the wild-type gene.
  • (13) Expression of these two cDNAs in insect cells by recombinant baculovirus revealed that the alpha 1 subunit, after noncovalent association with the beta subunit, has the same potency as the native alpha subunit purified from the pituitary.
  • (14) We have examined the organization of the repeated and single copy DNA sequences in the genomes of two insects, the honeybee (Apis mellifera) and the housefly (Musca domestica).
  • (15) But pipeline opponents say that by moving beetles from the Nebraska sandhills and mowing miles of grass where the insects once lived, TransCanada has illegally begun construction on the project.
  • (16) The complete amino acid sequence of 147 residues was determined automatically for a major dimeric component (CTT VI) of the insect larva Chironomus thummi thummi (Diptera).
  • (17) Peptides B and C are isoforms of a 43-residue peptide which contains 6 cysteines and shows significant sequence homology to insect defensins, initially reported from dipteran insects.
  • (18) The results suggested that allergenic cross-reactivity between some fly species exists, and may extend to taxonomically unrelated insect species.
  • (19) The species studied were Triatoma infestans, Triatoma brasiliensis, Triatoma vitticeps, Triatoma pseudomaculata, Rhodnius prolixus and Panstrongylus megistus, and 34 to 348 insects were studied in each group (average, 190).
  • (20) There is evidence that they might predate on our native shrimps, on our insect larvae, possibly fish eggs.