membraneless
(ichthyology) Small non-retractable fins, generally on the caudal peduncle between the last dorsal or anal fin and the caudal fin of some fishes. In some groups, such as tuna, finlets are rayless.
plural of syntergosternite
Without a membrane.
ammonia produced from blue hydrogen and nitrogen
膜のない細胞内小器官は、ストレスに応じて素早く集合したり解体したりします。
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