WAEC Biology 2021 Theory — Question 20
Question 20 of 26 from the West African Examinations Council (WAEC) Biology 2021 Theory paper, with the correct answer and a full explanation.
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Practical 1(b). (i) Make a drawing, 6 cm to 8 cm long, of the anterior view of specimen C (lumbar vertebra) and label fully. (ii) State four observable similarities between specimens L and M.
Model answer
(i) The drawing should show and label: Neural spine; Prezygapophysis; Metaphysis; Neural Arch; Neural Canal; Transverse Process; Centrum. (ii) Similarities between L and M would typically include shared structural features appropriate to their common classification group (e.g. both possess a similar body plan, segmentation, or symmetry) — specific to the organisms provided in the practical exam.
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