When we are too hot, more blood flows through the capillaries near the surface of the skin. This helps us to cool down because the blood loses heat by:

THE ITEM refer to the following family functions.

The family provides food, clothing and shelter for the children.

THE ITEM refers to the following illustration.

The pattern where many persons make the same decision as the young man in the picture is refered to as

Common salt can be used to make all of these EXCEPT for:

The range of values of v when 5 - v ≤ 2v - 1 is

The scientific name of an organism is derived from its:

In humans, an egg cell is released from an ovary approximately every:

In the figure above, for which point is the x-coordinate positive and the y-coordinate negative?

Each of the features of our bodies is controlled by a:

The area of the trapezium ABCD above is

When dilute sulphuric acid is electrolysed the two gases produced are hydrogen and:

All of the following are systems programs EXCEPT __________

Two separate forces are acting on a bar to cause it to rotate clockwise. One force is 20 N, at a distance of 3 m out from the pivot; the second force, 2 m further out, is 10 N. Their combined moment is:

The water authority charges $20.00 per month for the meter rent, $2.00 for the first 1 000 litres and $0.20 for each additional 100 litres. What is the total bill for 2400 litres used in one month?

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:

Proteins are:

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

A __________ is the smallest addressable unit on a disk

A contractor completed five-ninths of a job before a second contractor completed an additional one-third. What fraction of the job is left undone?