生物 1996 年 DSE、CE 選擇題（第 6 頁）

51.

The diagram below shows the vertical section of an apple:

Which of the following structures contain(s) stored food for seed germination?

52.

Lichens are sensitive to air pollution. The graph below shows the relative abundance of four species of lichens at different distances from Kwun Tong (an industrial area):

Which species is most sensitive to polluted air?

53.

A lichen is a close association of an alga and a fungus which cannot survive independently. This association is an example of

54.

Questions 54 and 55 refer to the table below which shows some features of a pair of twins:

	May	Amy
Body weight	50 kg	52 kg
Blood group	A	AB
Eye colour	blue	blue
IQ	100	115

Which of the following indicates whether they are identical twins or not?

55.

Questions 54 and 55 refer to the table below which shows some features of a pair of twins:

	May	Amy
Body weight	50 kg	52 kg
Blood group	A	AB
Eye colour	blue	blue
IQ	100	115

If both of their parents have brown eyes, which of the following can be deduced?

(1)Brown eye colour is the dominant character.

(2)Both parents are heterozygous for eye colour.

(3)If May and Amy have another sister, she must also have blue eyes.

56.

Questions 56 and 57 refer to the table below which shows the air pollution indices of some places in Hong Kong. The air pollution index is an indicator of the abundance of suspended particles, sulphur dioxide, nitrogen dioxide, and other pollutant gases in air. Monthly average of the air pollution index

	June	July	August	September	October
Central District	25	25	29	42	46
Kwun Tong	36	32	33	48	51
Yuen Long	23	23	25	36	42

Yuen Long has the lowest air pollution index. Which of the following is not a possible reason for it?

57.

Questions 56 and 57 refer to the table below which shows the air pollution indices of some places in Hong Kong. The air pollution index is an indicator of the abundance of suspended particles, sulphur dioxide, nitrogen dioxide, and other pollutant gases in air. Monthly average of the air pollution index

	June	July	August	September	October
Central District	25	25	29	42	46
Kwun Tong	36	32	33	48	51
Yuen Long	23	23	25	36	42

From June to August, the air pollution indices are relatively low in all three areas. This may be due to

58.

The exhaled air from our body consists mostly of

59.

Questions 59 and 60 refer to the model below which is used to illustrate the movement at the elbow joint:

Model of the elbow joint: rubber bands P and Q, wooden planks R and S, joined by a screw

Which of the following occurs when Q is shortened?

	P	S
	shortened	raised
	shortened	lowered
	stretched	raised
	stretched	lowered

60.

Questions 59 and 60 refer to the model below which is used to illustrate the movement at the elbow joint:

This model is useful for demonstrating