If U = {1, 2, 3, . . . 10 } and
S = { 2, 4, 6, 8, 10 }, then S ' =
2. Question | Biology
In pea plant size, tall is dominant to dwarf.You cannot tell whether a tall plant is homozygous
(TT) or heterozygous (Tt).To find its genotype you perform a test cross.This involves:
3. Question | Physics
Sweating can help to cool the body. This cooling is achieved mainly by:
4. Question | Chemistry
When gas particles spread out we call it:
5. Question | Integrated Science
When we are too hot, more blood flows through the capillaries near the surface of the skin. This helps us to cool down because the blood loses heat by:
6. Question | Information Technology
Two commonly used types of impact printers are __________.
7. Question | Integrated Science
Which one of the following best compares the eye and a camera?
8. Question | Chemistry
The Haber Process is used to make:
9. Question | Social Studies
Which of the following is a function of the Caribbean Development Bank?
10. Question | Biology
All of the following processes result in energy loss from an ecosystem EXCEPT for:
11. Question | Chemistry
All of these are ordered crystalline structures EXCEPT for:
12. Question | Mathematics
The sizes of the interior angles of a polygon
are x°, 2x°, 60°, 3x° and 36°. What is the
value of x ?
13. Question | Mathematics
How many subsets does the set {a, b, c, d, e} have?
14. Question | Biology
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.
15. Question | Mathematics
If p * q = pq2 , then 2 * 3 =
16. Question | Mathematics
The equation of the line which passes through the point (0 , -3) and has a gradient of 1/2 is
17. Question | Mathematics
The perimeter of a rectangle is 26 cm. The rectangle is converted to a square by tripling the width and taking a quarter of the length. What is the perimeter of the resulting square?
18. Question | Physics
A detector close to a sample of radioactive material records 76 counts per second (cps).
Precisely 2 days later the count rate has fallen to 22 cps.The count rate due to background
radiation, taken immediately before and after the experiment, averaged 4 cps. The half-life of the
material is:
19. Question | Information Technology
Which device has internal storage in the form of a buffer?
20. Question | Mathematics
Profits in the partnership of Bess, Bill and Bob are shared in the ratio 1 : 2 : 3. If Bill's share of the profits is $300, what is Bob's share?