生命的统一性
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Medium
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13 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
俗话说“龙生龙,凤生凤,老鼠的儿子会打洞。”这句话主要描述的是下列哪种生命现象?
遗传
生殖
呼吸
捕食
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
美宣同学从学校回来,对她妈妈左看右看,她妈妈很好奇,就问她“怎么啦?我有什么奇怪吗?”美宣同学回应说,学校科学老师要同学们调查家人的“性状”。性状主要是指________。
生物的性别
生物的大小
生物的特征
生物的形状
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪组不是人体的相对性状?
有耳垂与无耳垂
双眼皮和单眼皮
手指长和脚趾短
食指长过无名指和食指断过无名指
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
伟明同学家的一对白鸽最近孵化出三只小鸽,长大后它们的羽毛颜色不完全相同,这一现象属于_______。
遗传
变异
生长
杂交
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一体细胞经过减数分裂后,可以形成______个生殖细胞
2
4
6
8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
老王已经有三个儿子了,他一直都想要一个女儿。这次他老婆怀孕了。试问人的性别主要是由_____来决定的。
母亲
父亲
双亲
上天
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
孙先生结婚多年后,太太终于怀孕了。那么孙太太肚子婴儿是男生和女生的概率为_____________。
1:1
1:2
2:1
1:3
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