生物 2001 年 DSE、CE 選擇題（第 2 頁）

11.

Which of the following is an adaptive feature of the tapeworm for absorbing food from its host ?

12.

The absorption of water in the small intestine is facilitated by

(1)the presence of numerous capillaries.

(2)the absorption of digested food.

(3)the folding of the inner lining.

13.

The oxygen produced during photosynthesis comes from

14.

The graph below shows the changes in pH of the plaque on the tooth surface of a child :

The change in pH from 12:00 to 12:30 hour is most probably caused by

15.

Which of the following features of the respiratory tract helps to warm the inhaled air ?

16.

For a person who carries out physical exercise regularly, which of the following will not occur ?

17.

Which of the following are excretory wastes produced by the liver ?

(1)urea

(2)bile salts

(3)carbon dioxide

18.

Which of the following statements about antibodies is correct ?

19.

The photograph below shows a mammalian vertebra :

Which of the following is located in position X in a living mammal ?

20.

Skeletal muscles usually work in pairs because