全国各地中考真题:北京市2019年中考生物真题试题
2019年北京市高级中等学校招生考试生物试卷第一部分选择题(共15分)本部分共15小题,每小题1分,共15分。在每小题列出的四个选项中,选出最符合题目要求的一项。1.控制物质进出人体肝脏细胞的结构是A.细胞壁B.细胞膜C.细胞质D.细跑核2.衣藻是生活在水中的单细孢藻类能独立完成生命活动。下列叙述错误的是A.可在水中自由活动B.通过神经进行调节C.自己制造有机营养D.能够排出代谢废物3.在草原生态系统中,猛禽与鼠类之间存在捕食关系。下列关于该生态系统的叙述,错误的是A.由生物部分和非生物部分组成B.能量的根本来源是太阳能C.猛禽捕食鼠类完成了物质循环D.猛禽数量的减少可能会引发鼠害4.砂生槐是...
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