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北京石油化工学院2026年研究生招生接收调剂公告
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czh309

金虫 (小有名气)

[交流] what restrict or decided species's size

today,my daughter ask me why the tree is so high but the flowers are so low.i just told her it's the diffence of species,they have different genes.just like adult mouse is so little,however ,the baby elephant is so large.
but the question is i really don't know why.i don't know what and how restrict or decide it.who can tell me ?please ,thancks!


thanks everybody!may be she can't understand any answers,because shi is just half and three years old.but i want try my best to answer her's any questions.i hope she can found the world is so interesting ,curious and beautiful.
hehe,may be one day she can realy find the causes.

[ Last edited by czh309 on 2012-6-12 at 16:58 ]
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fungixx

至尊木虫 (文坛精英)

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genes and nature choice or evolution~ i think~
几年前踏上火车那一刻都还没有意识到,从此故乡只有冬夏,再无春秋
8楼2012-06-12 10:52:44
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小木虫: 金币+0.2, 抢了个小板凳,给个红包


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3楼2012-06-11 22:37:42
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seagrove

禁虫 (文坛精英)

小盼妞

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It's just them
最近迷上林峰了,一直觉得人家过帅不值得迷来着……=_=!
4楼2012-06-11 22:49:25
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雨墙

银虫 (小有名气)

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curton: 回帖置顶 2012-06-11 23:04:39
curton: 金币+2, it is a very different question 2012-06-11 23:05:04
he who can answer your your question by experiments should be given the noble prize.different species  depend on different genes ,even more then one gene

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5楼2012-06-11 22:59:03
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