The wall of the heart is made of:

The common name for ascorbic acid is:

The group of elements whose molecules and atoms are the same is called:

Decomposers are important in the process of decay because:

Which one of the following factors does NOT affect the rate of transpiration?

A person of blood group AB has:

January 1, 1999 a trader bought 100 articles at $5.00 each. During the month 70 Of the articles were sold at $8.00 each and the remainder were sold on January at the market value of $3.00 each. What was the gross for the month?

All of these are compounds EXCEPT for:

Acid soils can be neutralised by adding:

Which one of the following is NOT a harmful effect of smoking?

In order to carry out photosynthesis, a plant needs:

The standard atom used for mass calculations is:

The main site of action of ADH (antidiuretic hormone).

Which one of the following foods contains the most energy per 100 g?

The part of the brain that processes information from the sense organs is the:

Which of the following transactions will NOT affect capital?

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

In data representation, a __________ represents one character which may be a letter, number, or punctuation mark.

Which of the following device interfaces integrates the device controller into the disk or CD drive?

The number of electrons in a full electron shell is: