Which of the following substances contains the elements carbon, hydrogen, oxygen and nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins

You look through a microscope to view the Brownian motion of smoke in a container of air. Which one of the following statements is NOT true?

Who presides over the House of Assembly / House of Representatives?

During adolescence, boys:

Removal of forests may cause all of the following EXCEPT

In order to carry out photosynthesis, a plant needs:

All of the following are features of a gas exchange surface EXCEPT for:

If US$1.00 is equivalent to EC$2.68, how much in US$ would one get for EC$100?

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

Which of the following are all deficiency diseases?

All of these are trace elements EXCEPT for:

The splitting of a beam of white light into the colours which make it up is called:

Which of the following statements about aerobic respiration is correct?

Crossing two brown mice produced an offspring with a black coat.Which of the following statements MUST be correct?
Ⅰ Brown coat is dominant to black.
Ⅱ The brown mice were heterozygous for coat colour.
Ⅲ The black mouse was homozygous for coat colour.
Ⅳ Crossing a black mouse with another black mouse could produce a brown offspring.

POPULATION PYRAMID FOR COUNTRY X

Which of the following features of Country X may be gathered from the diagram above?

John Jones pays his employees by cash. How will he record this payment in his books?

Instructions: Choose from the four suggested answers the word which is closest to OPPOSITE in meaning to the underlined word.

The headgear worn by the factory worker is made from artificial material.

Which of the following would DISCOURAGE emigration?

The energy used in thermal decomposition is:

The biceps and triceps are an antagonistic pair of muscles because: