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SECTION A
Answer Two Question From This Section
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1(a) State the levels of organisation of the following organisms/structures: copied from obinaija.com
(i) blood
(ii) guinea pig
(iii) hibiscus flower
(iv) human skeleton
(v) plasmodium [5 Marks]
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(B) What is homeostatics? [3 Marks]
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(C) (i) Explain briefly how the kidney maintains acid-base balance of the blood [6 Marks]
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(ii) Explain two factors that affect the functioning of the kidney [6 Marks]
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2(a) Write a balanced chemical equation for the process of photosynthesis [4 Marks]
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(B) Make a diagram 8cm - 10cm long of the transverse section of a dicotyledonous leaf and label fully [11 Mark]
(C) State five functions of the mammalian liver [5 Marks]
(3a) A sample of garden soil was placed in a measuring cylinder, enough water was added to it. It was shaken and allowed to settle for 30 minutes . Draw a diagram 6cm - 8cm long to show the various layers formed and label fully. [7 Marks]
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(B) State four reasons why each of the following soils is not suitable for crop production:
(i) clayey
(ii) sandy To get biology answers directly to your phone as SMS, send N800 etisalat to 08090955503
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