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4576

 (a) identify specimen D without giving reason (b) (i) State two observable features of specimen D which indicate its mode of nutrition (b) (ii) What is the mode of nutrition cf specimen D? (c) Make a labelled drawing to show features of biological importance of the specimen (d) (i) Examine and identify without reasons specimens E and F

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4577

Specimen G is a paste made from a food material. Carry out the following tests to identify the food substances contained in specimen G. Wash the test tube after each use to ensure that the next sample is not contaminated. All tests and observations should be recorded in a table as shown below.

        Test observation inference
     
     

(a) (i) Pour 5 cm/(^3/) of specimen G into a test tube and add three drops of sodium hydroxide solution. Shake two test tube. Record your observation. Then add three drops of copper (ii) tetraoxosulphate (VI) solution (CuSO/(_4/)). Shake the test tube. Record your observations and inference (b) Pour 5 cm/(^3/) of specimen G into a test tube and three drops of Sudan IIl. Shake the mixture. Record your observation and inference (d) To another 5 cm/(^3/) of specimen G add four drops of Fehling's solution. Shake the test tube. Warm the mixture. Record your observation and inference

View Answer & Discuss WAEC 1989
4578

1. (a) List three features which are essential for cross-pollination to take place (b) State three characteristics

View Answer & Discuss WAEC 1990
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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4579

2. (a) Name two supporting tissues found in plants (b) Give one function of the Golgi body in the cell. 

View Answer & Discuss WAEC 1990
4580

3. (a) Name the parts labelled | - IV (b) In which of the labelled parts is food stored?

View Answer & Discuss WAEC 1990
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts