29．用放大倍数为100倍和200倍的显微镜观察同一玻片标本的同一部位，先后看到的现象是····················································································································(　 )

A．细胞多、细胞大；细胞少、细胞大　　 B．细胞多、细胞小；细胞少、细胞大

C．细胞少、细胞大；细胞多、细胞小　　 D．细胞少、细胞小；细胞少、细胞大

28．关于人体结构层次的描述中，正确的是························································(　 )

A．细胞→器官→组织→系统→人体　　 B．组织→细胞→器官→系统→人体

C．细胞→组织→器官→系统→人体　　 D．器官→组织→系统→细胞→人体

27．组织是在细胞分裂的基础上，经过细胞的何种生理活动形成的················(　 )

A．分裂　　　　　 B．分化　　　　 C．分泌　　　　 D．生长

26．俗话说“种瓜得瓜，种豆得豆”，这主要与细胞中的____有关 ················(　 )

A．细胞膜　　　　 B．细胞质　　　 C．细胞核　　　 D．细胞壁

25．要将视野左上方的物像移到视野中央，应往哪个方向移动装片················(　 )

A． 左下方　　　　 B．左上方　　　 C．右下方　　　 D．右上方

24．生物最基本的特征是························································································(　 )

A．新陈代谢　　　 B．生长　　　　 C．运动　　　　 D．繁殖

23．下列各项中，属于非生物的是········································································(　 )

A．引起人感冒的病毒　 B．休眠的青蛙　

C．会弹琴的机器人　 　D．生长在橘子皮上的青霉

22．右图表示的是····································································································(　 )

A．细胞的分裂　 B．细胞的分化

C．细胞的生长　 D．细胞的组成

21．在显微镜下看，字母“p”是 ········································································(　 )

A．b　　　　　 B．d　　　　　 C．q　　　　　 D．p

20．西瓜之所以甘甜可口，只要是因为西瓜的____含有大量的塘分················(　 )

A．细胞壁　　　 B．细胞膜　　　 C．液泡　　　　 D．细胞核