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3 marksGenetic Variation and Speciation

CSEC Biology · May/June 2013 · Paper 2 · Question 1(a)

Figure 1 shows the variation in height of a sample of men in a population.

In the space below, construct a table using the data presented in Figure 1.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(b)Suggest TWO causes of variation among members of the same species.[2 marks]
  2. 1(c)Explain how the type of variation shown in Table 1 differs from the type of variation represented by Figure 1.[4 marks]
  3. 1(d)(i)Name TWO substances that are transported by blood.[2 marks]
  4. 1(d)(ii)Explain how this will affect the ability of these three students to perform well in sports.[4 marks]
  5. 1(e)(i)Draw and annotate a diagram to show how the following materials could be set up to investigate the rate at which water moves through the xylem vessels under…[4 marks]
  6. 1(e)(ii)Write a suitable hypothesis for this investigation.[2 marks]
  7. 1(f)Relate the structure of xylem vessels to their role in the transport of water through plant stems.[4 marks]

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