Biology

5th

grade

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5下3-2-ALL

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78 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    胎生動物是胚胎在母體內吸收母體所提供的養分,發育成完整的個體後,才從母體產下。
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  • 2. Multiple Choice
    30 seconds
    1 pt
    卵生動物是母體將卵排出體外,由卵提供胚胎發育所須的養分,待發育成完整個體後才會孵化出來。
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  • 3. Multiple Choice
    30 seconds
    1 pt
    鳥類和人類一樣,也具有哺乳行為。
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