
期末考复习
Authored by Sonnie Wong
Science
10th Grade
Used 7+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
解剖一朵花的子房时,会看到一些白色的小颗粒。这些小颗粒是______。
胚
胚珠
花药
花粉
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
如图所示的过程是_____.
自花传粉
异化传粉
受精作用
种子萌发
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列属于风媒花的特征是_________。
花朵大而鲜艳
有芬芳的气味
有甜美的花蜜
花粉多而轻
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
木瓜中含有许多粒种子,这是因为花的结构中含有多个______。
子房
雄蕊
花药
胚珠
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
种子萌发的必要条件是_________。
充足的水分和空气
阳光、二氧化碳和水
氧气、水分和阳光
适宜的温度、空气、水分
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
幼苗的根主要是由_______发育而成的。
胚根
胚芽
子叶
胚乳
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
菜豆种子中贮藏营养物质的是______,而玉米种子中贮藏营养物质的是_______。
子叶、胚乳
胚乳、子叶
胚、子叶
胚芽、胚乳
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