國七自然科學1-3有性生殖2
Quiz
•
Biology
•
7th Grade
•
Practice Problem
•
Hard
葉東茂 葉東茂
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24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
太子幫在爭吵有關體內受精的敘述,誰的說法不正確?
Answer explanation
答案:(A)
解析:(A)體外受精生物藉由增加排放精子和卵的數目,來增加受精卵形成的個數
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
動物從海洋到陸地上,離開了水,要以何種方式才能保證精子和卵能結合?
Answer explanation
答案:(D)
解析:體內受精只需要少量水分做為精卵結合的媒介,較適應陸生生活環境
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下何種動物每一次產卵的數目最多?
Answer explanation
答案:(B)
解析:體外受精卵生生物,護卵育幼能力差,但產卵量極多,以增加受精卵形成的數量 (A)大多數爬蟲類是屬於體內受精卵生生物 (B)大多數的魚類是屬於體外受精卵生生物 (C)大多數哺乳類是體內受精胎生生物 (D)鳥類是屬於體內受精卵生生物
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
教室後方的壁報紙上畫了四種動物,請問哪一隻不可畫上肚臍?
Answer explanation
答案:(A)
解析:哺乳類胎生動物在母體懷孕時,有胎盤及臍帶構造出現,作為母體及胎兒養分、氧及廢物、二氧化碳交換及輸送的構造 胎兒臍帶基部,即是出生後嬰兒肚臍的位置 (A)鳥類
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列有關動物生殖的敘述,何者正確?
Answer explanation
答案:(B)
解析:(A)鯨、海豚為體內受精水生動物 (C)母雞是否下蛋與交配或受精無關 (D)一般魚及兩生類為體外受精的卵生動物
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
動物生殖行為由體外受精演化為體內受精,其意義與植物何種構造的出現相似?
Answer explanation
答案:(D)
解析:動物體內受精媒介需要水量,比體外受精少很多,如同植物花粉管構造的出現一般,只是,花粉管的出現,可使精細胞與卵結合,完全不需水分為媒介,讓植物更適合陸生環境
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
花生的豆莢是由花的哪一部分發育而成的?
Answer explanation
答案:(D)
解析:豆莢是子房(壁)發育而成的果實(果皮+果肉) 花生米是胚珠發育而成的種子
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