active precursor
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- Sphingomyelin
- siliceous sponges
- tapetum
- protopod larva
- meiolecithal egg，microlectithal egg,oligolecthal egg
- Ligia exotica
- capsomer,capsomere
- blocks world
- flagellated chamber
- pseudomonas aeruginosa
- heterogeneous nuclear rna
- conserved domain
- granulated gel
- paranasal sinus
- terrestrial pollution
- cold water species
- oral pole
- BU (region)
- testa
- urethral gland