1. 人类与后代之间拥有某些相似的特征,这个现象叫做 ______。
Y2 SN

Quiz
•
Science
•
2nd Grade
•
Medium
Weiyen Lew
Used 1+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
遗传
有血缘关系
长得一模一样
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2. 我们的遗传特征可以来自父母,也可以来自 ______。
姑姑
舅舅
祖辈
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
3. 什么是 “遗传” ?
父母和孩子的头发长度都一样
人类的某些特征由上一代传给下一代的现象
人类把知识传给下一代的过程
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4. 什么是 “胎生动物” , “卵生动物” ?
胎生 -哺乳动物 卵生-孵卵孵化成幼儿
胎生- 产卵 , 卵生- 产下幼儿
胎生和卵生都会照顾幼儿
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
5. 请选出 蚱蜢 的照顾幼儿方法。
把卵用身体包围起来
把卵产在沙土里
把卵产在泥土里
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
6. 以下哪个幼儿与妈妈长得不相似 ?
苍蝇
马来貘
斑马
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
7. 以下哪种动物一次产下少量幼儿?
老鼠,兔子
猴子,长颈鹿
猴子,兔子
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