向巴江村 2017-10-24 11:57
<span style="font-family:微软雅黑;background-color:#FFFFFF;"> </span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">地球上生物的种类和数量可谓是恒河沙数</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">但是这些生物</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">小到组成它们身体的细胞</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">大到一个生物个体</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">一个物种、甚至一个生态系统、整个生物圈</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">都可以一个一个的生命系统</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">(</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">什么是系统呢</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">),</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">而且这些生命系统之间还有层次的关系。</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">(</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">以一只龟为例分析</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">)<br /> </span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">单一个心肌细胞就是一个生命系统</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,(</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">为什么呢</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">?)</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">因为细胞各个部分都是互相依存</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">互相影响</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">,</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">而使细胞能表现生命特征</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">;</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">心肌也是一个系统</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">(</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">分析略</span><span style="background-color:#FFFFFF;font-family:"color:black;font-size:10.5pt;">)</span><span style="font-family:微软雅黑;background-color:#FFFFFF;font-size:10.5pt;">。引导学生分析心脏、循环系统、个体、种群、群落等也是一个系统。</span>
巴桑扎西 2017-09-27 10:34
<span style="color:black;font-size:10.5pt;">地球上生物的种类和数量可谓是恒河沙数</span><span style="font-family:"color:black;font-size:10.5pt;">,</span><span style="color:black;font-size:10.5pt;">但是这些生物</span><span style="font-family:"color:black;font-size:10.5pt;">,</span><span style="color:black;font-size:10.5pt;">小到组成它们身体的细胞</span><span style="font-family:"color:black;font-size:10.5pt;">,</span><span style="color:black;font-size:10.5pt;">大到一个生物个体</span><span style="font-family:"color:black;font-size:10.5pt;">,</span><span style="color:black;font-size:10.5pt;">一个物种、甚至一个生态系统、整个生物圈</span><span style="font-family:"color:black;font-size:10.5pt;">,</span><span style="color:black;font-size:10.5pt;">都可以一个一个的生命系统</span><span style="font-family:"color:black;font-size:10.5pt;">(</span><span style="color:black;font-size:10.5pt;">什么是系统呢</span><span style="font-family:"color:black;font-size:10.5pt;">),</span><span style="color:black;font-size:10.5pt;">而且这些生命系统之间还有层次的关系。</span><span style="font-family:"color:black;font-size:10.5pt;">(</span><span style="color:black;font-size:10.5pt;">以一只龟为例分析</span><span style="font-family:"color:black;font-size:10.5pt;">)<br /> </span><span style="color:black;font-size:10.5pt;">单一个心肌细胞就是一个生命系统</span><span style="font-family:"color:black;font-size:10.5pt;">,(</span><span style="color:black;font-size:10.5pt;">为什么呢</span><span style="font-family:"color:black;font-size:10.5pt;">?)</span><span style="color:black;font-size:10.5pt;">因为细胞各个部分都是互相依存</span><span style="font-family:"color:black;font-size:10.5pt;">,</span><span style="color:black;font-size:10.5pt;">互相影响</span><span style="font-family:"color:black;font-size:10.5pt;">,</span><span style="color:black;font-size:10.5pt;">而使细胞能表现生命特征</span><span style="font-family:"color:black;font-size:10.5pt;">;</span><span style="color:black;font-size:10.5pt;">心肌也是一个系统</span><span style="font-family:"color:black;font-size:10.5pt;">(</span><span style="color:black;font-size:10.5pt;">分析略</span><span style="font-family:"color:black;font-size:10.5pt;">)</span><span style="color:black;font-size:10.5pt;">。引导学生分析心脏、循环系统、个体、种群、群落等也是一个系统。</span>