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CAPE Biology Unit 1 · 2016 · Paper 2 · Question 3(b)(iii)

Figure 3 is a diagram of a section through the placenta with the umbilical vein.

Comment on the importance of the amnion during foetal development. In your comment, give TWO effects of reduced levels of the amniotic fluid.

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Other parts of this question

  1. 3(a)In the box below, make a plan drawing of the anther in Figure 2. Use annotated labels to identify TWO tissues.[6 marks]
  2. 3(b)(i)Identify the structures labelled A, B and C and indicate whether EACH is of foetal or maternal origin. Write your answers in the following table.[3 marks]
  3. 3(b)(ii)Outline TWO functions of the placenta.[2 marks]

More practice: the rest of this paper · more Sexual Reproduction in Humans questions · all CAPE Biology Unit 1 past papers