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Hexapoda. The subphylum Hexapoda (from Greek for 'six legs') or hexapods comprises the largest clade of arthropods and includes most of the extant arthropod species. It includes the crown group class Insecta (true insects), as well as the much smaller clade Entognatha, which includes three classes of wingless arthropods that were once ...
May 29, 2023 · Hexapoda. (Science: zoology) The true, or six-legged, insects; insects other than myriapods and arachnids. The hexapoda have the head, thorax, and abdomen differentiated, and are mostly winged. They have three pairs of mouth organs, viz, mandibles, maxillae, and the second maxillae or labial palpi; three pairs of thoracic legs; and abdominal ...
Hexapoda is the largest subphylum within the phylum Arthropoda in terms of described species, if not actual numbers (some arachnologists contend that the free-living and parasitic mites are more diverse, but no one knows for certain). Roughly one million hexapod species have been described from terrestrial and aquatic habitats.
Oct 31, 2023 · Subphylum Hexapoda. The name Hexapoda denotes the presence of six legs (three pairs) in these animals, which differentiates them from the number of pairs present in other arthropods. Hexapods are characterized by the presence of a head, thorax, and abdomen, constituting three tagma. The thorax bears the wings as well as six legs in three pairs.
The hexapod body plan allows insects to maintain passive stability over a variety of movements, and a sprawled leg posture adds to that stability. However, beyond their body plan, insects take advantage of a remarkable array of sensors that provide a wealth of information to a sophisticated central nervous system (CNS) that in turn acts through an efficient neuromuscular system to alter ...
The possibility should not be discounted that the hexapod body plan is a paedomorphic form of larval stages of Crustacea.-Thoroughly explore the phylogeny, morphologically and molecularly, within each of several groups of basal hexapods, especially Diplura, Archaeognatha, and Zygentoma.
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Hexapoda (6 legs) Source Wikipedia. Hexapoda Characteristics. Ø A large taxa, includes insects and a small group of wingless arthropods. Ø Body plan: 3 parts, head, thorax and abdomen. Ø Head with six segments. Ø Thorax with three pairs of jointed legs (hence the name hexapoda) Ø Head bears a presegmental acron. Ø Acron bears compound eyes.
