BRIEF
发表于 2025-3-23 11:04:55
Temporal pattern of the double sperm line production in Tubifex tubifex (Annelida, Oligochaeta)ogenesis of the two sperm lines which characterise this species. Starting from the second week after cocoon laying, we analysed the seminal vesicle content. We counted the cysts in the vesicles and arranged them into three classes: premeiotic, paraspermatids and euspermatids. Our results show that s
cutlery
发表于 2025-3-23 17:02:50
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针叶树
发表于 2025-3-23 21:47:29
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细丝
发表于 2025-3-24 01:48:16
Pattern formation in embryos of the oligochaete annelid ,: cellular basis for segmentation and specil pairs of longitudinal coherent columns (bandlets) of primary blast cells which are generated by five bilateral pairs of embryonic stem cells called teloblasts (M, N, O, P and Q). As development proceeds, an initially linear array of blast cells in each ectodermal bandlet gradually changes its shap
退潮
发表于 2025-3-24 05:56:37
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BALK
发表于 2025-3-24 09:30:16
Cocoon deposition of , Ohtaka (Tubificidae) in Lake Biwa, Japangs in a cocoon, and the substrate type and the position used for cocoon attachment. Cocoon deposition lasted from the beginning of January to the end of March, and peaked between mid-January and mid-February. Laboratory experiments showed that most . breed only once during their lifetime. In its nat
Demulcent
发表于 2025-3-24 13:27:38
Utility and relevance of aquatic oligochaetes in Ecological Risk Assessmentult of exposure to contaminants or other stressors. EcoRA begins with problem formulation/hazard identification, progresses to effects and exposure assessment, and culminates with risk characterization (an estimate of the incidence and severity of any adverse effects likely to occur). Key components
Detonate
发表于 2025-3-24 18:17:26
as a link in food chain transfer of hexachlorobenzene from contaminated sediment to fishd by endobenthic, sediment-ingesting invertebrates. Some tubificid species — or other benthic annelids — serve as food for benthivorous fish, which thereby ingest the sediment-borne chemicals and may accumulate contaminant concentrations far higher than from water exposure only, and transfer them to
expeditious
发表于 2025-3-24 20:19:46
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厌食症
发表于 2025-3-25 00:28:58
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