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ID number:784233
 
Author:
Evaluation:
Published: 13.12.2011.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Extract

Vairošanās
Šķirtdzimumu dzīvnieki vai hermafrodīti
Dēj olas
Attīstas tieši, izņemot gliemenes, kam ir kāpuri

Nozīme
Gliemeži attīra ūdeni, barojoties ar vienšūņiem un mikroorganismiem.
Dārza gliemeži, masveidā savairojoties, kaitē augiem.
No pērļgliemenēm iegūst perlamutru un pērles.
Galvkājus cilvēki izmanto pārtikā svaigā, kaltētā, konservētā veidā.
No kalmāru un sēpiju tintesmaisa sekrēta iegūst akvareļkrāsu sēpiju un dabisko tušu.

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