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期末考复习

Authored by Sonnie Wong

Science

10th Grade

Used 7+ times

期末考复习
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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______。

胚珠

花药

花粉

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

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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