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