國七自然科學下-CH1-3有性生殖-1

Quiz
•
Biology
•
7th Grade
•
Medium
葉東茂 葉東茂
Used 6+ times
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Answer explanation
(C)
解析:(C)胎兒產出之後不算是分娩結束,而是母體將胎盤構造完全排出體外才稱為分娩結束
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Answer explanation
(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
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Answer explanation
.(A)
解析:卵生需要大量卵黃供應養分,故卵細胞較大,肉眼可見 胎生主要是由母體供應養分,卵黃量極少,故卵子較小,則需用顯微鏡觀察 (A)卵生 (B)胎生 (C)胎生 (D)胎生
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Answer explanation
(A)
解析:體外受精生物(如金魚)藉由增加排放精子和卵的數目,來增加受精卵形成的個數 體內受精胎生動物(如狗)護卵育幼最完善,產卵數最少
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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