Which of the following statements about photosynthesis is NOT true?

The density of pure water is:

When an element combines with oxygen we get an:

All of the following are organelles EXCEPT for:

In a titration the long tube with a volume scale is a:

Measuring plant growth by measuring height is convenient, but inaccurate because:

Which of the following BEST explains why birth rates have been falling in some Caribbean countries?

Instruction: Choose from the four options the word or pair of words which BEST completes the meaning of the sentence.

While the committee members ............ insults across the floor, the chairman tried in vain to ............ order.

The second most common gas in the atmosphere is:

Proteins are:

The two main protein groups are globular and:

AIDS is a killer disease because:

In a box, there are 3 white, 4 red and 2 blue marbles. What is the probability that a marble taken at random is NOT blue?

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

Cooking food improves all of these EXCEPT for:

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

Which of the following may contribute to group cohesion in the Caribbean?

1. Clear goals
2. Special privileges
3. Similar interests
4. Shared values

After a 10% discount, an article is sold for $360. The price before the discount was

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

Veins have valves because