2022 初二科学学年考 (古宽)
Quiz
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Science
•
8th Grade
•
Medium
Chung Tay
Used 9+ times
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58 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
传送花粉粒到柱头的过程叫做____。
受精作用
传粉作用
自花传粉
异花传粉
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪项不是虫媒花的特征?
花朵大,颜色鲜艳
花丝细长,露于花外
花粉少而重
具有香味及蜜腺
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
____不是组成雌蕊的其中一部分。
花柱
子房
柱头
花丝
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列有关植物与其传粉的媒介,不正确的是?
椰子靠水传播花粉
大红花靠昆虫传播花粉
玉米靠风传播花粉
玫瑰靠昆虫传播花粉
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
西瓜果实内有很多种子是由于它的子房内含有许多____。
花萼
雄蕊
胚珠
雌蕊
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一般种子的萌发条件是必须具备____
水和养料
水和空气
水,空气和适宜温度
光和养料
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
以下哪项是木质部的功能?(可复选)
运输水
运输营养
支持植物体
开花
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