
生物学选择题
Quiz
•
Science
•
9th Grade
•
Medium
17T103 MING
Used 1+ times
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98 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
提高光合作用效率的有效措施是( )。
高度密植
适当增加二氧化碳浓度
增加氧气浓度
增加水分
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下面有关对血管、心脏、血液的描述中你认为正确的一项是( )。
动脉就是把血液从身体各部分输送到心脏的血管
血液和组织细胞进行物质交换后就变成了含氧少和养料少的充氧血
心脏内的血液是从左心房流向左心室,再流到肺动脉
在体循环中,动脉中就流充氧血,静脉中流缺氧血,并且左心房和左心室都流充氧血
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
细胞中含有遗传物质的结构位于( )。
细胞核
细胞膜
细胞质
细胞壁
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
制作临时玻片标本时,能避免产生气泡的方法是( )。
盖玻片的一边先接触载玻片上的水滴,再轻轻盖在生物材料上
当水滴中生物材料没有展平时用盖玻片将其压平
在被擦拭干净的载玻片中央不滴加自来水
不需要用吸水纸吸去载玻片上多余的水
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列新个体的获得与“多利”羊出生原理不同的是( )。
用扦插法种植柳树
压条法获得的石榴树
种子萌发后长成的菜豆
利用组织培养技术繁殖月季
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列说法正确的是( )。
一个细胞只有一个基因
基因主要存在于染色体上
动物细胞有基因,植物细胞没有
不同种生物的染色体数目都相同
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“麻雀虽小,五脏俱全。”生物体内存在不同的组织和器官是由于细胞的( )。
生长
分裂
分化
改变
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