Biology 2006 WAEC Past Questions

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Which of the following vertebrae provide articulating surfaces for the ribs?

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The ventricles of the mammalian heart have thicker
muscular walls than the auricles because the

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The physical and chemical factors which affect the life of organisms in an environment are described as

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Which of the following orders correctly represents the trend in eutrophication?

A. Lack of oxygen → Death of aquatic organisms → Massive algal growth
B. Excess nitrates and phosphates → Massive algal growth → Lack of oxygen → Death of aquatic organisms
C. Heavy mineralization → Lack of oxygen → Massive algal growth
D. Excess nitrates and phosphates → Lack of oxygen → Massive algal growth → Death of aquatic organisms

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(a)(i) List the functions of a typical foliage leaf.

(ii) Name three types of leaf modifications giving one example in each case.

(b) Make a diagram 8 - 10cm long, of the female reproductive part of a flowering plant and label fully.

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