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Acarina    
螨目; 螨蜱目

□目; □蜱目

Acarina
n 1: mites and ticks [synonym: {Acarina}, {order Acarina}]


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  • Acarid | Characteristics Control | Britannica
    Acarid, (subclass Acari or Acarida or Acarina), any member of the subgroup of the arthropod class Arachnida that includes the mites and ticks Some mites are as small as 0 1 mm (0 0039 inch) in length, while the largest ticks are slightly more than 30 mm (1 18 inches) long Nymphs and adults
  • Acarid - Taxonomic classification | Britannica
    Acarid - Taxonomic classification: The process of evolution in mites and ticks has resulted in a degree of specialization and morphological diversity not found in any other group of arachnids Acarids, believed to be derived from two lines of descent, have a long, though meagre, fossil history dating from the Devonian Period (about 395 million years ago)
  • Acarid - Structural anatomy | Britannica
    Acarid - Structural anatomy: The subclass Acari is generally distinguished by the lack of body segmentation, although it is secondarily developed in a few families An anterior region called the gnathosoma contains the mouth, specialized feeding appendages, and segmented structures called palps, or pedipalps
  • Mite | Small Arachnid, Habitat Types | Britannica
    Mite, any of numerous species of tiny arthropods, members of the mite and tick subclass Acari (class Arachnida), that live in a wide range of habitats, including brackish water, fresh water, hot springs, soil, plants, and (as parasites) animals, including humans Parasitic forms may live in the
  • Acarid - Ecology and habitat | Britannica
    Acarid - Ecology and habitat: The free-living acarids include species from all of the orders and suborders except Ixodida (ticks) Many free-living mites utilize insects or other arthropods to disperse themselves, a nonparasitic association known as phoresy
  • Characteristics of acarids | Britannica
    acarid, Any member of the subclass Acari, which includes the mites and ticks of the class Arachnida
  • Arachnid - Evolution, Paleontology, Classification | Britannica
    Arachnid - Evolution, Paleontology, Classification: A major characteristic of arachnid evolution is that segments were fused or lost In general, scorpions have the most primitive features, and spiders and mites are the most highly evolved The earliest forms recognizable as arachnids include a scorpion from the Silurian Class Arachnida have approximately 90,000 species classified in 13 orders
  • Antarctica - Penguins, Seals, Whales | Britannica
    Antarctica - Penguins, Seals, Whales: The native land fauna is wholly invertebrate Apparently climatically less tolerant and less easily dispersed, the fauna follows plant colonization of newly deglaciated regions and therefore is not as widely distributed The Antarctic microfauna includes heliozoans, rotifers, tardigrades, nematodes, and ciliate protozoans The protozoans dominate soil and
  • Acarine disease | Britannica
    Other articles where Acarine disease is discussed: beekeeping: Diseases: Acarine disease is caused by the mite Acarapis woodi that gets into the tracheae of the bee through its breathing holes or spiracles in its thorax or midsection Bees affected by this mite are unable to fly, have disjointed wings and distended abdomens There is…
  • Ocarina | Wind Instrument, Ceramic, Flute | Britannica
    Ocarina, globular flute, a late 19th-century musical development of traditional Italian carnival whistles of earthenware, often bird-shaped and sounding only one or two notes It is an egg-shaped vessel of clay or metal or, as a toy, of plastic and is sounded on the flageolet, or fipple flute,





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