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  1. ...供參考: 同學~工課係自己做嫁 (a) bite off a piece of celery? incisors... during digestion. stomach ph 2 - 2 .5 small intestine ph 8 Explain... to the type of food they eat . some animal have some digestion juice ...

    分類:科學及數學 > 生物學 2009年05月22日

  2. ... so the female doesn't eat the male. The Goliath...large enough to break the skin of a human (1- 2 .5 cm). They do carry venom in...and have been known to bite humans when threatened...

    分類:科學及數學 > 生物學 2007年08月31日