Nowadays, ‘eutrophication’ presents as one of the most serious ecological problems of open water sources such as lakes, oceans and reservoirs. It can be occurs naturally over centuries as lakes age and filled in with sediments, or acid rain. However, it has been rapidly increasing caused by human activities like fertilizers, municipal sewage, and wastewater from the factory. The Baltic Sea is
진화 (Evolution)
Ⅰ. 진화의 증거
(1) 진화론의 틀
① 2500년전 아낙시만드로스
② 1700년대 중반 Georges Buffon
③ 1800년대 초 Jean Baptist Lamarck
④ 1831년 Charles Darwin
⑤ 1850년대 Alfred Wallace
(2) 진화의 증거
① 화석상의 증거 (Fossil)
② 생물지리학적 증거 (Biogeography)
③ 비교해부학적 증거 (Comparative anatomy)
④ 비교발