An alternate form of a gene is called an:

A certain nucleus has 12 protons and 16 neutrons.Which one of the following statements about the nucleus is NOT true?

Plant stems grow towards a light source.This is an example of:

In the diagram of a section through a synovial joint, the part labelled X represents the:

The particles in a liquid:

The voltages from the electrochemical series are -2.92 for potassium and +0.34 for copper, which shows that:

A boy throws a cricket ball straight up in the air. At the very top of its flight:

Which of the following is based on exploiting non-renewable natural resources?

Which of the following transactions will NOT affect capital?

In a box, there are 3 white, 4 red and 2 blue marbles. What is the probability that a marble taken at random is NOT blue?

What unit measurement is used to express the speed of memory?

To complete the reaction: acid + carbonate → salt + carbon dioxide + ?, we must add the word:

All the following software are examples of operating systems EXCEPT

Which of the following statements about photosynthesis is NOT true?

Hormonal methods of contraception work by:

The lowest and the highest frequencies a typical young person′s ear can detect are approximately:

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

The problem with the students is that they arrive late, gives no excuse, and are rude when spoken to.

In an ecosystem a population is:

Oxygen is carried around the body by the:

in which of the following accounts is debenture interest charged as an expense?