论文部分内容阅读
一、概述本节课为《生物》人教版八年级下册第七单元“生物圈中生命的延续和发展”的第一章《生物的生殖和发育》中第二节“动物的生殖和发育”的内容。生物的生殖和发育是生物的主要特征之一,是学生今后学习
First, an overview This lesson for “biology” PEP eighth grade volume seventh unit “the life cycle of the biosphere and development ” in the first chapter “biological reproduction and development” in section second “animal Reproductive and development ”content. Reproduction and development of a living creature is one of the main features of the students to learn from now on