File:NSW_seabed_1.JPG · Wikimedia Commons · See Wikimedia Commons
Also known as alga, algal, algæ
原生生物中的一類
Algae are a diverse group of photosynthetic organisms that live mostly in water, ranging from microscopic single cells to large seaweeds that can grow many meters long. They play a fundamental role in aquatic ecosystems as primary producers, converting sunlight into energy that supports life in oceans and freshwater environments.
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Article · 中文
藻類(Algae)是一非正式术语,指的是大量多样的光合真核生物复系群,包括来自多个不同演化枝(支序群)的物种。它們是能行光合作用的生物,並且一些藻類與比較高等的植物有關。雖然其他藻類看似從藍綠菌得到光合作用的能力,但是在演化上有獨立的分支。所有藻類缺乏真的根、莖、葉和其他可在高等植物上發現的組織構造。藻類與細菌和原生動物不同之處,是藻類產生能量的方式為光合自營。 藻類本身並不獨立為一生物“界”,而是分散於真核生物域中各界。屬於原生生物界的藻類有裸藻、甲藻(或稱渦鞭毛藻)、隱藻、(包括矽藻等浮游藻)、紅藻、綠藻和褐藻。而生殖構造複雜的輪藻則屬於植物界。屬於大型藻者一般僅有紅藻、綠藻和褐藻等為大型肉眼可顯而易見之固著性藻類。此類大型藻幾乎99%以上之種類棲息於海水環境中,故大型藻多以海藻稱之。另外,有些肉眼可見的固著性藍綠藻和少數之矽藻嚴格而言應該亦屬於大型藻的範圍。
Abstract from DBpedia / Wikipedia · CC BY-SA
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