WAEC 2025 Biology | Practical

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Question 1 View Details
Study specimens A, B and C and answer questions 1(a) to 1(g)
Question Parts
(a)
(i) Name the Phylum; (ii) Class, to which specimen A belongs
(b)
State three reasons for the answer in 1(a)(iii)
(c)
Name the biological association between specimens A and B.
(d)
State two structural adaptations of specimen A to its habitat.
(e)
State two ways of preserving specimen B.
(f)
(i) State two ways by which specimen B is of economic importance. (ii) Name the class of food of specimen B.
(g)
On the table below, name five observable parts of specimen C and state one function each of the parts to the specimen. \(\begin{array}{|l|l|} \hline \text{Five observable parts of specimen C} & \text{One function of each of the parts to the specimen} \\ \hline & \\ \hline & \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{array}\)
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Question 2 View Details
Study specimens E and F and answer questions 2(a) to 2(e)
Question Parts
(a)
(i) Name the type of fruit each of specimens E and F. E: ___ F: ___ (ii) Name the placentation of specimen F. (iii) Give one reason for the answer in 2a(ii).
(b)
(i) Classify each of specimens E and F as either true or false fruits. E: ___ F: ___ (ii) Given one reason each for the answers in 2b(i). E: ___ F: ___.
(c)
(i) State three observable similarities between specimens E and F. (ii) State three observable differences between specimens E and F. \(\begin{array}{|c|c|} \hline \text{E} & \text{F} \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{array}\)
(d)
(i) Name the mode of dispersal of specimen F. (ii) Given one reason for the answer in 2d(i).
(e)
Make a drawing, 8 cm to 10 cm long of specimen F and label fully.
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Question 3 View Details
Answer the following questions based on the experiments conducted.
Question Parts
(a)
(i) Break specimen G and empty its content carefully into a beaker. Take 3 ml of the clear fluid into a test tube using the syringe provided. Add three drops of sodium hydroxide, followed by three drops of 1% copper sulphate solution into the mixture in the test tube. Shake the mixture and record the observation in the table below. \(\begin{array}{|l|l|l|} \hline \text{test} & \text{observation} & \text{Inference} \\ \hline & & \\ \hline \end{array}\) (ii) Name the test carried out (iii) Mention one other test that could give a positive result in the experiment. (iv) Name two other food substances that could give positive result in the experiment
(b)
Into specimen H, add 3 drops of sodium hydroxide followed by 3 drops of 1% copper sulphate solution. Shake the mixture and record the observation in the table below. \(\begin{array}{|l|l|l|} \hline \text{test} & \text{observation} & \text{Inference} \\ \hline & & \\ \hline \end{array}\)
(c)
Complete the table below: \(\begin{array}{|l|l|} \hline \text{Five observation parts of specimen J} & \text{One function of each of the part} \\ \hline & \\ \hline & \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{array}\)
(d)
Name the: (i) Kingdom; (ii) Phylum; (iii) Class; of the organisms that produce specimen J.
(e)
State two ways by which specimen J is of economic importance to humans.
(f)
Name two habitats of the organisms that produce specimen J.
(g)
Give three examples of organisms that produce specimen J.
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