²é¿´: 973  |  »Ø¸´: 9
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

czh309

½ð³æ (СÓÐÃûÆø)

[½»Á÷] 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 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

seagrove

½û³æ (ÎÄ̳¾«Ó¢)

СÅÎæ¤

ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷

×î½üÃÔÉÏÁÖ·åÁË£¬Ò»Ö±¾õµÃÈ˼ҹý˧²»ÖµµÃÃÔÀ´×Å¡­¡­=_=!
4Â¥2012-06-11 22:49:25
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 10 ¸ö»Ø´ð
¡ï
Сľ³æ: ½ð±Ò+0.2, ÇÀÁ˸öС°åµÊ£¬¸ø¸öºì°ü


[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
3Â¥2012-06-11 22:37:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Óêǽ

Òø³æ (СÓÐÃûÆø)

¡ï ¡ï
curton: »ØÌûÖö¥ 2012-06-11 23:04:39
curton: ½ð±Ò+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

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
5Â¥2012-06-11 22:59:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

curton

Ö÷¹ÜÇø³¤ (ÎÄ̳¾«Ó¢)

Hello Kitty

ÓÅÐãÇø³¤ÓÅÐãÇø³¤ÓÅÐãÇø³¤ÓÅÐãÇø³¤ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷

it is a very different question
6Â¥2012-06-11 23:05:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ²ÄÁÏר˶306Ó¢Ò»Êý¶þ +9 z1z2z3879 2026-03-16 11/550 2026-03-18 08:36 by zhukairuo
[¿¼ÑÐ] 302Çóµ÷¼Á +7 ºôºôºô¡£¡£¡£¡£ 2026-03-17 7/350 2026-03-18 08:00 by ms629
[¿¼ÑÐ] ÄÜÔ´²ÄÁÏ»¯Ñ§¿ÎÌâ×éÕÐÊÕ˶ʿÑо¿Éú8-10Ãû +3 ÍÑÓ±¶ø³ö 2026-03-16 6/300 2026-03-17 21:19 by z1z2z3879
[¿¼ÑÐ] ²ÄÁÏ£¬·ÄÖ¯£¬ÉúÎ0856¡¢0710£©£¬»¯Ñ§ÕÐÉúÀ² +3 Eember. 2026-03-17 7/350 2026-03-17 20:20 by »¨125533
[¿¼ÑÐ] 277µ÷¼Á +5 ×ÔÓɼå±ý¹û×Ó 2026-03-16 6/300 2026-03-17 19:26 by Àîleezz
[¿¼ÑÐ] 301Çóµ÷¼Á +4 A_JiXing 2026-03-16 4/200 2026-03-17 17:32 by ruiyingmiao
[¿¼ÑÐ] ¡¾0856¡¿»¯Ñ§¹¤³Ì£¨085602£©313 ·Ö£¬±¾¿ÆÑ§¿ÆÆÀ¹ÀAÀàԺУ»¯Ñ§¹¤³ÌÓ빤ÒÕ£¬³ÏÇóµ÷¼Á +7 СÁõ¿ì¿ìÉϰ¶ 2026-03-11 8/400 2026-03-17 16:57 by ruiyingmiao
[¿¼ÑÐ] 08¹¤¿Æ 320×Ü·Ö Çóµ÷¼Á +4 À滨çóÍí·ç 2026-03-17 4/200 2026-03-17 13:38 by houyaoxu
[ÂÛÎÄͶ¸å] ÓÐûÓдóÀз¢Ð¡ÂÛÎÄÄÜ´øÎÒ¸ö¶þ×÷ +3 ÔöÈñ©ÈË 2026-03-17 4/200 2026-03-17 09:26 by xs74101122
[¿¼ÑÐ] 274Çóµ÷¼Á +5 ʱ¼äµã 2026-03-13 5/250 2026-03-17 07:34 by ÈÈÇéɳĮ
[¿¼ÑÐ] 070300»¯Ñ§Ñ§Ë¶Çóµ÷¼Á +6 Ì«Ïë½ø²½ÁË0608 2026-03-16 6/300 2026-03-16 16:13 by kykm678
[¿¼ÑÐ] 0703 ÎïÀí»¯Ñ§µ÷¼Á +3 ÎÒ¿ÉÒÔÉϰ¶µÄ¶Ô 2026-03-13 5/250 2026-03-16 10:50 by ÎÒ¿ÉÒÔÉϰ¶µÄ¶ÔÂ
[¿¼ÑÐ] 26¿¼ÑÐÒ»Ö¾Ô¸ÖйúʯÓÍ´óѧ(»ª¶«)305·ÖÇóµ÷¼Á +3 ¼ÎÄêÐÂ³Ì 2026-03-15 3/150 2026-03-15 13:58 by ¹þ¹þ¹þ¹þºÙºÙºÙ
[¿¼ÑÐ] 288Çóµ÷¼Á +4 Ææµã0314 2026-03-14 4/200 2026-03-14 23:04 by JourneyLucky
[¿¼ÑÐ] 255Çóµ÷¼Á +3 Àî¼Î»Û£¬ 2026-03-12 4/200 2026-03-14 16:58 by ÓÐÖ»ÀêÅ«
[¿¼ÑÐ] 308 085701 ËÄÁù¼¶ÒѹýÇóµ÷¼Á +7 ÎÂÇÇÇÇÇÇÇÇ 2026-03-12 14/700 2026-03-14 10:49 by JourneyLucky
[¿¼ÑÐ] ¹¤¿Æµ÷¼Á +4 Jiang191123£¡ 2026-03-11 4/200 2026-03-13 15:15 by Miko19
[¿¼ÑÐ] 328»¯¹¤×¨Ë¶Çóµ÷¼Á +4 ¡££¬¡££¬¡££¬¡£i 2026-03-12 4/200 2026-03-13 14:44 by JourneyLucky
[¿¼ÑÐ] һ־Ըɽ´ó07»¯Ñ§ 332·Ö ËÄÁù¼¶Òѹý ±¾¿ÆÉ½¶«Ë«·Ç Çóµ÷¼Á£¡ +3 ²»ÏëÀíÄã 2026-03-12 3/150 2026-03-13 14:18 by JourneyLucky
[¿¼ÑÐ] 290Çóµ÷¼Á +3 ADT 2026-03-13 3/150 2026-03-13 10:19 by peike
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û