An enzyme which has an optimum pH of 3 will function best in the:
2. Question | Mathematics
After a 5% discount, an article is sold for
$475. The price before the discount was
3. Question | Social Studies
Which of the following characteristics MUST ALL formal groups possess?
1. Membership requirements
2. Code of conduct
3. Specific objectives
4. Elected leaders
4. Question | Biology
Which one of the following structures is responsible for controlling entry and exit of materials
into and out of the cell?
5. Question | Social Studies
Which of the following would undermine the authority of parents in the home?
6. Question | Information Technology
The system used by mission control in Houston, Texas to monitor the operation of space exploration vehicles is an example of the __________ processing mode.
7. Question | Chemistry
The Haber Process is used to make:
8. Question | Chemistry
One example of an emulsifying agent is:
9. Question | Chemistry
When solid carbon dioxide turns straight into a gas we call it:
10. Question | Mathematics
The sizes of the interior angles of a polygon
are x°, 2x°, 60°, 3x° and 36°. What is the
value of x ?
11. Question | Biology
Which of the following are natural barriers to infection?
Ⅰ tears
Ⅱ skin
Ⅲ stomach acid
Ⅳ mucus
12. Question | Integrated Science
Hormonal methods of contraception work by:
13. Question | Chemistry
The simplest ratio of atoms in a compound is given by the:
14. Question | Biology
Single-celled organisms do not need a transport system because:
15. Question | Information Technology
Banks and other financial institutions utilize __________ technology that automatically verifies the identity of callers wishing to access their accounts.
16. Question | Biology
The length of an insect such as a grasshopper increases in steps.This is because:
17. Question | Mathematics
Which of the following is a subset of {b, c, d}?
18. Question | Mathematics
Three lights flash at intervals of 2, 6 and 14
seconds respectively. They are started
together. How soon after will they next flash
together again?
19. Question | Information Technology
__________ are used in specialized fields such as engineering and drafting for outputting large-format drawings.
20. Question | Integrated Science
The blood cells that engulf invading microorganisms are: