'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 认真审题。审题是阅读题干、弄清题意的过程。准确、充分感知题目信息是正确解题的...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 初中生物大题解题方法 认真审题。审题是阅读题干、弄清题意的过程。准确、充分感知...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 一、单项选择题 选择题在生物中考试卷中作为第一大题出现,占50分。俗话说良好的开...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 细胞核主要是由核膜、染色质、核仁和核骨架构成。细胞核的主要功能是控制细胞的遗...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 1、生物多样性为我们提供了食物、纤维、木材、药材和多种工业原料。 我们的食物全部...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 环境对生物的影响 1、非生物因素:光、温度、水、空气等。 2、生物因素:影响某种生...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 生态系统简称ECO,指在自然界的一定的空间内,生物与环境构成的统一整体,在这个统...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 生物的归类 1、按照形态结构:动物、植物、其他生物 2、按照生活环境:陆生生物、水...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 1细胞壁的作用 1、维持细胞形状,控制细胞生长细胞壁增加了细胞的机械强度,并承受...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 1生物适应环境的例子 生物对环境的适应是存自然选择中优胜劣汰的过程,它促进了生物...