情境教学法>bo xi lai
华师大二附中国际部
thereofmarine and freshwater behaviour and physiology physiological mechanisms in the control of bioluminescent countershading in a midwater shrimp physiological mechanisms in the control of bioluminescent countershading in a midwater
shrimp
合肥高中一对一
bt sv期刊名称： Marine Behaviour & Physiology
作者： Michael I Latz
年份： 1995年
期号： 第2-4期
blushing
teach是什么意思>hardlywhen关键词：
Bioluminescence;counterillumination;hormone;midwater;neural;photophore;
Sergestesquestion是什么意思
摘要：In the oceanic midwater environment, most animals have evolved an extraordinary anti‐predation behavior using bioluminescent countershading (counterillumination) to help them remain cryptic to visual predators. For the midwater penaeid shrimp, Sergestes similis, the interaction of both hormonal and neural systems may be involved in the control of counterillumination. S. similis responds to downward‐directed illumination, detected by the eyes, with light emission from five hepatic light organs. Dark‐adapted specimens undergo a slow induction process prior to production of the conventional counterillumination respon. The induction of bio‐luminescence may involve a hormonal pathway mediated by the light‐adapting retinal distal pigment dispersing hormone. Once induced, the rapid control of counterillumination may involve
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