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ID number:444482
Author:
Evaluation:
Published: 02.12.2016.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Extract

Vēžveidīgo klase
Ķermeni klāj hitīna čaula jeb saplūduši daudzi posmi
Divi nodalījumi – galvkrūtis, vēders
Elpošanas orgāni – žaunas

Šķirtdzimuma dzīvnieki
Ola – kāpurs – pieaugušais
Ola – epimorfoze (augstākajiem vēžiem plaši izplatīta)
Daudzkāju klase
Posmots ķermenis
Pie katra posma ekstremitātes:simtkājiem viens pāris (2 kājas)tūkstoškājiem divi pāri (4 kājas)
Tārpveidīgi sauszemes dzīvnieki

Postembrionālā attīstība var būt tieša (epimorfoze), taču parasti attīstība noris ar kāpuru fāzēm (metamorfoze)

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