æ¤ç©å¨å®: æ ¹(Root)
æ¤ç©å¨å®: æ ¹(Root)
æ¤ç©å¨å®: æ ¹(Root)
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----------------------- cortex<br />
--------------------- endodermis<br />
----------------- pericycle<br />
---------------- phloem<br />
------------------- protoxylem<br />
------------ metaxylem<br />
Zea mays 玉 米 根 橫 切 面 ( 單 子 葉 ) root C.S. 600x