生物 2002 年 DSE、CE 選擇題（第 6 頁）

51.

The following bar chart shows the distribution of different blood groups in a class of students :

Which of the following can be concluded from the bar chart ?

52.

Questions 52 to 54 refer to the diagram below, which shows a section of the human skin :

On a cold day, which of the following changes will occur to help maintain the body temperature ?

(1)Structure 4 becomes thicker.

(2)Structure 6 becomes less active.

(3)Structure 7 constricts.

53.

Questions 52 to 54 refer to the diagram below, which shows a section of the human skin :

Which structure(s) in the skin helps to prevent the entry of germs into the body ?

54.

Questions 52 to 54 refer to the diagram below, which shows a section of the human skin :

Which parts of the skin are capable of active cell division ?

55.

Some pollen grains of a mango tree are transferred to the stigma of another mango tree. Which of the following statements about the pollen grains of the mango tree is/are correct ?

(1)They are the male gametes.

(2)They help in the dispersal of mango plants.

(3)They help to transfer genetic materials from one mango tree to another.

56.

The diagram below shows the longitudinal section of a young root :

Xylem and phloem are found in region

57.

Questions 57 and 58 refer to the diagram below, which shows a section of a tomato :

Which part(s) of the tomato helps in the dispersal of S ?

58.

Questions 57 and 58 refer to the diagram below, which shows a section of a tomato :

T is a scar on the surface of the tomato. Which of the following gives rise to T ?

59.

In a kind of operation, a laser beam is used to reduce the curvature of the cornea of the eye. What is the purpose of this operation ?

60.

The diagram below shows a broad bean seed :

Which of the following graphs correctly shows the changes in the fresh mass of parts X and Y during germination ?