When testing a leaf for the presence of starch, the correct sequence of procedures is:

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

Cells become specialised to carry out different roles.This process is called:

In an atom the neutron is found:

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

She was not feeling well at the beginning of the journey, and sitting at the front of the car made her feel worse.

The two main protein groups are globular and:

Which one of the following statements about diffraction is true?

The correct pathway of water through a plant is:

The method by which certain uranium and plutonium nuclei can release energy in a reactor is known as:

To electrolyse solid lead bromide it must first be heated so that:

THE ITEM refer to the following dialogue.

Sita: When Marvin was group leader he was always ordering us about.

Paul: Me, I prefer a group leader who allows members to do as they please.

Paul′s statement indicates that he prefers a leader with a style that is

In order to carry out photosynthesis, a plant needs:

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

0.045 × 10^-3 in scientific notation is

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

Which of the following transactions should be debited in the Cash Account?

In an ecosystem a population is:

Transition metals have all of these properties EXCEPT for:

The common name for ascorbic acid is:

How many grams are in 2.5 kilograms?