為什麼人類會長大？

People grow up everyday, from baby to child, and from teenager to
adult. There aren't a especially right answer for this question, but the most
important is that people grow for knowledge, activities and marriage.

Bodies of people grow too. The thought of people even grow up. These are
parts of people GROWING UP. People grow up is very normal. Everyone knows
it. But I think you can try to think: do I enjoy growing up? What is the fun or
interesting things of it?

Hope I can help you. Thank you! ^^

把人想像成一座工廠，我們每天攝取許多的營養，就好比是工廠的原料。利用這些營養，一部份拿來當成能源使機器運轉；另外一部份就製成成品。這些成品在我們體內堆積，所以我們就一天天的長大。所以在發育的時期青少年都吃的特別多，因為此時身體要快快長大；當成年時，身體已不需成長，只需要運轉及修補，這時吃的東西就比較少了！！

你提問的這個問題好像到現在為止還沒有人能夠回答一個確切的答案啊 為什麼會長大 不是每個人都希望長大嗎 為什麼會有人出生 人類生生不息就是這樣生活的哦

物體的形態是需發育與生長而成 物體長大可以更令自己強壯 又可以繁殖下代
生物在基因型上的差異而不同

因為小孩成長,四肢按著日子的增加而漸長

因為細胞會分裂。。。。。。

人長大是一種自然規律,人能夠經歷從小到大的過程,才能明白生存的意義,才是完整的人生。