The following diagram shows a model used to show how breathing movements take place:

Which part of the model represents the diaphragm?

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

Which of the following are natural barriers to infection?
Ⅰ tears
Ⅱ skin
Ⅲ stomach acid
Ⅳ mucus

Which one of the following chemicals is used to test for starch?

The table shows the distribution of the ages of 25 students.

What is the probability that a student chosen at random is AT LEAST 13 years old?

In terms of mass, compared to a proton, an electron:

In an atom the neutron is found:

The Periodic Table is arranged in order of:

Which of the following statements about lipids is NOT true?

The chemicals that make up the bodies of animals and plants are called:

2p² -15p + 25 =

The graph shows the results of an experiment to investigate
the relationship between the voltage placed across a light bulb
and the current which then flows through it.Which one of the
following statements is NOT true?

The electrical charges on a proton and an electron are:

A business operates its petty cash on the imprest system. At the beginning of the month the petty cashier was given $20.00 out of which she spent $15.20. How much will she be reimbursed?

In the Venn diagram above, the shaded portion represents

A shopkeeper buys 48 radios for a wholesale price of $7200. At what price per radio must he sell to make a profit of 15% on his cost?

The main taxonomic groups in order, starting with the largest, are:

Which one of the following statements about a voltmeter is NOT true?

Which one of these four statements is NOT true?

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

Had they not been forewarned, they might have joined the queue, not knowing that gas was not on sale at that station.