2021 WAEC (WASSCE) Biology Past Questions

Convert 425 to base three numeral

1. A.2013✓ Correct
2. B.2103
3. C.2113
4. D.3433

Bicameral legislature contributes to the democratic process by

1. A.A. recommending the use of force on policy
2. B.B. suppressing minority rights✓ Correct
3. C.C. imposing programmes and policies on the executive
4. D.D. widening the scope of political participation

choose the word or group of words that best completes each of the following sentences: I believe he'll be arrested_________

1. A.some days
2. B.many days✓ Correct
3. C.many a day
4. D.some day

A sequence is given by $2\frac{1}{2}, 5, 7\frac{1}{2}, .....$ if the nth term is 25, find n

1. A.9
2. B.10
3. C.12✓ Correct
4. D.15

Which of the following is not an exterior angle of a regular polygon?

1. A.66°
2. B.72°
3. C.24°✓ Correct
4. D.15°

Which of the following stages of the SDLC is post-operational stage?

1. A.A. Analysis
2. B.B. Design
3. C.C. Investigation✓ Correct
4. D.D. Maintenance

An electric lamp rated 120W is used on a 240Vrms, calculate the resistance of its filament

1. A.480$\Omega$✓ Correct
2. B.360$\Omega$
3. C.60$\Omega$
4. D.2$\Omega$

Choose the interpretation that is most appropriate for each sentence. When the result was announced, it was discovered that Bimbo and Pam were neck and neck. This means that Bimbo and Pam

1. A.had almost the same result
2. B.failed badly✓ Correct
3. C.had equal result
4. D.passed well

The figure shows a quadrilateral PQRS having equal sides and opposite sides parallel. The diagonals PR and QS intersect perpendicularly at O, Which of the following statements cannot be correct

1. A.|PO|=|RO|
2. B.PQR is an equilateral triangle
3. C.PQRX is a parallelogram
4. D.There are two lines of symmetry✓ Correct

From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences: If it rains, the exhibition will be cancelled,.............?

1. A.wouldn't it✓ Correct
2. B.isn't it
3. C.won't it
4. D.can't it