问题
问答题 简答题
简述生态型与生活型之间的区别。
答案
参考答案:
同种生物的不同个体群,长期生存在不同的自然生态条件和人为培育条件下,发生趋异适应。并经过自然选择和人工选择而分化形成的生态,形态和生理特性不同的基因型类群,称为生态型。不同种生物由于长期生存在相同的自然生态和人为培育环境条件下,发生趋同适应,并经自然选择和人工选择后形成的,具有类似形态、生理和生态特性的物种类群,称为生活型。
简述生态型与生活型之间的区别。
参考答案:
同种生物的不同个体群,长期生存在不同的自然生态条件和人为培育条件下,发生趋异适应。并经过自然选择和人工选择而分化形成的生态,形态和生理特性不同的基因型类群,称为生态型。不同种生物由于长期生存在相同的自然生态和人为培育环境条件下,发生趋同适应,并经自然选择和人工选择后形成的,具有类似形态、生理和生态特性的物种类群,称为生活型。
任务型阅读。 | ||||||||||
American school life is different from (和……不同) Chinese. American students usually get to school at around 8:30 in the morning. They put their school bags in their lockers (柜子) and only take one book, one notebook and one pen to each class. In class, American students can sit in their seats (座位) when (当……时候) they answer their teachers questions At around 12:00 students have lunch. American students don’t go home for lunch. They have it at school. Most students like pizza(比萨), hot dogs or hamburgers. At 1:00 in the afternoon, they start to have classes. Their classes are usually over(结束) at three o’clock. Then they join in the activities (活动) of clubs or sports. 任务:请阅读上面短文,根据短文内容完成下面表格中的有关信息。 | ||||||||||
|