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