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ID number:225888
 
Author:
Evaluation:
Published: 28.12.2007.
Language: Latvian
Level: Elementary school
Literature: 3 units
References: Not used
Extract

Zarndobumaiņi ir ūdens dzīvnieki. Tos iedala četrās klasēs:

Hidrozoju klase - pie hidrozoju klases pieder saldūdens hidras, jūras hidropolipi, kas veido lielas kolonijas. Pieder arī sifonofori, kas ir brīvi peldoši organismi.
Scifozoju klase – šo klasi pārstāv visdažādākās medūzas.
Koraļļu klase - ietilpst aktīnijas, kas dzīvo pa vienai, gan koraļļi, kas veido kolonijas.
Ktenoforu klase…

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