WAEC 2023 Biology | Practical

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Question 1 View Details
Study specimens A, B, C and D and answer questions 1(a) to 1(f).
Question Parts
(a)
State three observable differences between specimens A and B.\(\begin{array}{|l|l|} \hline \text{A} & \text{B} \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{array}\)
(b)
In the table below, use a tick (✓) to indicate the appropriate modes of reproduction of the organism that possesses each of specimens A, B and C. \(\begin{array}{|l|l|l|l|l|} \hline \text{Specimen} & \text{Type of fertilization} & & \text{Reproductive process} & \\ \hline & \text{Internal} & \text{External} & \text{Oviparous} & \text{Viviparous} \\ \hline \text{A} & & & & \\ \hline \text{B} & & & & \\ \hline \text{C} & & & & \\ \hline \end{array}\)
(e)
(i) Name the Phylum/Division of the organisms that possess each of specimens A and D. A: ___ . D: ___
(e)
(ii) Name the class of organisms that possess each of specimens A, B, C and D. A: ___ . B: ___ C: ___ . D: ___
(d)
State the biological function of men B to the organism that possesses it.
(e)
Crack open specimen B and carefully empty its content into a Petri dish. Complete the table below by naming three observable features of specimen B and state one function each of the features named. \(\begin{array}{|l|l|} \hline \text{Three observable features} & \text{One function} \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{array}\)
(f)
State one habitat each of the organisms that possess specimens A, B and D. A: ___ . B: ___ . D: ___ .
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Question 2 View Details
Study specimens F, G and H and answer questions 2(a) to 2(f).
Question Parts
(a)
Name the Class to which each of specimens F and C belong. F: ___ . G: ___
(b)
State one reason each for the answers in 2(a). E: ___ . G: ___
(c)
Name the root system of each of specimens F and G. F: ___ . G: ___ .
(d)
(i) Detach one complete leaf from specimen F and make a drawing, 8 cm to 10 cm long of the leaf and label fully.
(d)
(ii) State one function each of three of the labelled parts of the drawing in 2(a)(1).
(e)
State three ways by which specimen F is of economic importance.
(f)
(i) Describe briefly four observable features of specimen H.
(f)
(ii) State one biological significance of specimen H to the plant from which it was obtained.
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Question 3 View Details
Study specimens L, M and N and answer questions 3(a) to 3(e).
Question Parts
(a)
Chemify each of specimens L, M and N based on: (i) type of fruit: L: ___ . M: ___ . N: ___ (ii) life cycle: L: ___ . M: ___ . N: ___
(b)
Make a longitudinal section of specimen L and state four observable differences between specimens:(i) L and M; \(\begin{array}{|l|l|} \hline \text{L} & \text{M} \\ \hline & \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{array}\) (ii) L and N. \(\begin{array}{|l|l|} \hline \text{L} & \text{N} \\ \hline & \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{array}\)
(c)
State three observable similarities between specimens L and N.
(d)
Make a drawing, 8 cm-10 cm long of specimen N and label fully.
(e)
(i) mode of dispersal of specimen L ;
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