生物 1997 年 DSE、CE 選擇題（第 4 頁）

31.

Which of the following components of the blood can destroy bacteria that have entered the body?

(1)antibodies

(2)phagocytes

(3)blood platelets

32.

Questions 33 to 35 refer to the photograph below which shows a section of the eye:

Light-sensitive cells are found on structure(s)

33.

Questions 33 to 35 refer to the photograph below which shows a section of the eye:

Which of the following changes occur when a person tries to focus on a distant object?

34.

Questions 33 to 35 refer to the photograph below which shows a section of the eye:

Which labelled structures help to maintain the shape of the eyeball?

35.

In a set-up, the tip of a coleoptile was removed and the coleoptile was treated as shown in the diagram below:

Which of the following set-ups will give a similar result as the one above?

36.

Which of the following is not a function of the mammalian skeleton?

37.

Which of the following statements is correct?

38.

Which of the following are the advantages of seed dispersal?

(1)to reduce competition within a species

(2)to allow the species to explore new environments

(3)to enable the species to become more adaptable to a changing environment

39.

Which of the following combinations is incorrect?

40.

Questions 42 and 43 refer to the diagram below which shows part of a lotus plant:

Both structures 1 and 3 can give rise to new plants. Which of the following comparisons between the two ways of reproduction is incorrect?

	Reproduction by structure 1	Reproduction by structure 3
	results in genetic variations	no genetic variation
	relies on external agent	does not need external agent
	both can prevent overcrowding of offspring	both can prevent overcrowding of offspring
	both can enable the plant to survive adverse conditions	both can enable the plant to survive adverse conditions