Предмет: Биология, автор: barsiktuki

почему головоногие моллюски не имеют раковину?

Ответы

Автор ответа: kasyrueeesdfs
0
Активная охота головоногих требует большей подвижности. Однако тяжелая раковина древних головоногих ортоцерат была обузой, ограничивающей активное движение. Ее с трудом удавалось тащить по дну. Да и защитой она была никакой . 
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