A cell in an embryo divides by mitosis three times in succession. How many cells will be formed from these divisions?

All gas exchange surfaces in vertebrate animals have:

Which of the following devices are MOST LIKELY to be used at an airport for border control activities?

Adding mineral water to anhydrous copper sulphate turns it:

The non-metal used to make margarine is:

When gas particles spread out we call it:

A man's regular pay is $3 per hour up to 40 hours. Overtime is twice the payment for regular time. If he was paid $168, how many hours overtime did he work?

Which one of the following is the best way to measure growth of an organism?

A ripple travels over the surface of some water. Its wavelength is 2 m, its amplitude is 0.1 m and its frequency is 0.5 Hz.The speed of the ripple is:

Which one of the following statements about ∝ particles is NOT true?

The blood cells that engulf invading microorganisms are:

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

I formed the brilliant idea of climbing the fence and to hang from the top of the rail until the bull went away.

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

How much simple interest is due on a loan of $120 for two years if the annual rate of interest is 5 ¹/₂ per cent?

The simplest ratio of atoms in a compound is given by the:

The diagram above shows the graphs of 3x - y = 1 and 5x + 2y = 20 . Which ordered pair (x, y) satisfies both equations?

A financial institution needs only to provide the caller with a limited amount of information. A __________ system is ideal to satisfy this need.

To make cell walls, plants must have:

The highest authority of the Caribbean Community (CARICOM) is the

The equation of the line which passes through the point (0 , -3) and has a gradient of ¹/₂ is