In Amoeba, osmoregulation is carried out by the

• A. pseudopodium
• B. food vacuole
• C. contractile vacuole
• D. nucleus

What will happen if an aluminium spoon is used to stir a solution of iron (II) trioxonitrates (V)?

• A. The spoon will be oxidized while the iron (II) ions will be reduced to the metal
• B. The spoon will increase in size
• C. The spoon will be reduced while the iron (II) ions will be oxidized
• D. The spoon will be reduced

In each of the following sentences, there is one word underlined and one gap. From the list of words lettered A - D, choose the word that is most nearly opposite in meaning to the underlined word and that will, at the same time, correctly fill the gap in the sentences.

Although they have declared the student asuspect he may turn out be ...........

• A. culpable
• B. innocent
• C. safe
• D. ignorant

David's inaction at Amnon's incest with Tamar showed his

• A. ability to forgive as a leader
• B. wisdom and strenght of character
• C. lack of control over his children
• D. excessive love for Amnon

After each of the following sentences, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for each sentence.

From the way Ngozi behaves, it is obvious she is a greenhorn. This means that the students should

• A. arrogant
• B. cautious
• C. inexperienced
• D. uncivilized

Which of the following is a wind deposited landforms?

• A. Rock pedestal
• B. Yardang
• C. Deflation hollow
• D. Loess

The different between birth rate and death rate is known as

• A. demographic transition
• B. natural growth rate
• C. migration rate
• D. fertility rate

Greater inter-dependence among workers in production is associated with

• A. utility
• B. manufacturing
• C. division of labour
• D. factory workers

Which of the following is correct about the electrons in the 1s orbital? They

• A. have the same spin
• B. are easier to remove than those in the 2p orbital
• C. are closest to the nucleus
• D. have the same energy as those in the 2s orbital

A travelling wave moving from left to right has an amplitude of 0.15m, a frequency of 550Hz and a wavelength of 0.01m. The equation describing the wave is

• A. y = 0.15 sin 200π(x - 5.5t)
• B. y = 0.15 sin π(0.01x - 5.5t)
• C. y = 0.15 sin 5.5π(x - 200t)
• D. y = 0.15 sin π(550x - 0.01t)