...(d) They develop long, segmented legs that allow them to walk freely and develop sensory organs. In the Arthropoda phylum, the body is made up of parts of the body that are fused together to form the head, thorax, abdomen, etc., and the legs are long and divided into many mobile segments, with claws at the tips that allow them to walk. The surface of the body is covered with a chitinous cuticle (chitin skeleton). The heart is long and tubular, and as sensory organs, in addition to a pair of compound eyes unique to this genus, they usually also have ocelli and antennae. *Some of the terminology that refers to the "chitin skeleton" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(d)節のある長い足ができて歩行が自由になり,感覚器官が発達するもの 〈節足動物門〉は体は体節の一部が合一して,頭部,胸部,腹部などとなり,足(脚)は長くのびて多くの可動性の節に分かれ,先端にはつめがあって歩くのに適する。体の表面はキチン性のクチクラでおおわれる(キチン骨格)。心臓は長い管状で,感覚器官としては,この類に固有の1対の複眼が発達するほか,たいてい単眼や触角などがある。… ※「キチン骨格」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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