亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

歡迎您訪問螢火蟲的故事!

螢火蟲的故事

更新時間:2021-12-23 03:39:33作者:admin2

螢火蟲的客家話叫做“火焰蟲”,臺灣話叫做“火金姑”。螢火蟲是甲蟲中的一類,其一生必須經過卵、幼蟲、蛹、成蟲四個階段。這種四階段的變化過程稱為“完全變能”。部分種類的雌蟲無飛行能力,形態酷似幼蟲而與雄蟲大異其趣,十分耐人尋味。螢火蟲的幼蟲期都會發光,但不一定每種的成蟲都會發光。螢火蟲的發光現象,是因為體內含有會發光的含磷物質,與發光酵素產生氧化還原的化學反應。
螢火蟲的生態習性
??? 螢火蟲依其生態區分為陸棲與水棲兩大類,但是前者占大多數。多數陸棲性螢火蟲的幼蟲會以獵捕蝸牛為食,而水棲性螢火蟲的幼蟲則以水為主要食物。陸棲性螢火蟲的幼蟲以氣管呼吸,水棲性的幼蟲則以氣管鰓呼吸。但也有極少數以氣管呼吸的螢類幼蟲,依賴水螺維生,也必須潛入水中捕食,理應歸入水棲性之類。
??? 螢火蟲的幼蟲通常需要經過六次蛻皮才會化蛹,水棲螢的終齡幼蟲,在成熟時會爬到岸邊化蛹。隨著各類不同,螢火蟲的生活史大多一年一世代,但也有大約四個月一世代的種類。有水才有螢火蟲,終年潮濕、草木茂盛更是陸棲性螢火蟲生存的必備條件

為您推薦

加載中...
主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |