单词	photic
释义	photic /ˈfəʊtɪk / adjective technical 1Relating to light, especially as an agent of chemical change or physiological response.To characterize this photic entrainment we examined frq expression in constant light, under which condition the mRNA and protein of this clock gene were strongly induced.... Furthermore, extraretinal photoreceptors appear to be involved in the photic entrainment of the circadian clock. They are therefore true deep-brain photoreceptors that bypass the eyes as a pathway for photic information. 1.1 Ecology Denoting the layers of the ocean reached by sufficient sunlight to allow plant growth: an average depth for the photic zone is about 100 m... Seasonal highs that pushed this euxinic layer into the photic zone would then lead to the greatly increased preservation and the TOC maxima. Macroalgae benefit from this relationship because fertile drift plants are retained in the photic zone where they continue to contribute to the gene pool. The authors skimmed their bacteria samples from the top, or photic layer, of the Mediterranean and Red Seas.
随便看	Trinidad and Tobago Trinidadian Trinil Trinitarian Trinitarianism trinity Trinity Brethren Trinity House Trinity Mountains Trinity River Trinity Sunday Trinity term trinket trinketry trinomial trio triode triolet triose trio sonata trioxide trip tripartite tripartitely tripartition

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。