知识贝壳
知识贝壳
所属栏目：英汉双解生物学
Darwins theory of evolu-tion through natural selection,modified andexpanded by modern genetic studies arising from the work of Mendel and his successors.Such studies have answered many questionswhich Darwins theory raised,but could notadequately explain b ......（本文共 683 字 ） [阅读本文] >>