adjectiveBotany & Zoology
Arranged in or consisting of two series or rows.
- For instance, they cannot model gradual or abrupt changes of growth modes that cause different chamber arrangements during ontogeny, such as planispiral and switching to biserial or streptospiral to uniserial.
- As in non - stelleroid echinoderms, asteroid ambulacrals form a biserial column.
- Uniserial budding produces a chain (runner or branch) one zooid wide, whereas, colonies that are biserial, zooids share one wall and result in a strip two zooids wide.
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Line breaks: bi|serial
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