Carib Quiz - Biology
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Biology
1. Question

Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅱ height
Ⅲ intelligence
Ⅳ body mass

2. Question

A typical soil contains mineral particles, humus, water, air and:

3. Question

75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?

4. Question

Which of the following is NOT a way in which infectious diseases can be transmitted?

5. Question

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

6. Question

Which of the following statements about aerobic respiration is correct?

7. Question

AIDS is a killer disease because:

8. Question

In hot conditions the surface blood vessels in the skin undergo vasodilation. This allows:

9. Question

Which of one the following statements about phloem cells is NOT true?

10. Question

An enzyme which has an optimum pH of 3 will function best in the:

11. Question

All of the following are components of an ecosystem EXCEPT for:

12. Question

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

13. Question

In a food chain a plant is a producer because it produces:

14. Question


The animals shown in the diagram were identified using a dichotomous key based on the visible characteristics listed below:
Ⅰ body shape
Ⅱ number of legs
Ⅲ number of wings
Ⅳ number of eyes
Ⅴ number of antennae
Which characteristics could be used to divide the animals into two groups?

15. Question

In an ecosystem a population is:

16. Question

A balanced diet is one which:

17. Question

Which one of the following is NOT a reflex action?

18. Question

Which of the following statements about diffusion is NOT true?

19. Question

The following are all minerals EXCEPT for:

20. Question

An alternate form of a gene is called an:

21. Question

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

22. Question

The wall of the left ventricle is thicker than that of the right ventricle because:

23. Question

Malaria is spread by:

24. Question

Which of the following conditions is NOT caused by a poor diet?

25. Question

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

26. Question

Water is lost from the body in:

27. Question

An example of an air pollutant is:

28. Question

Osmosis is:

29. Question

Which of the following does NOT play a role in evolutionary change?

30. Question

Single-celled organisms do not need a transport system because:

31. Question

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

32. Question

A collection of several tissues which carry out a particular function is called:

33. Question

In the diagram of a section through a synovial joint, the part labelled X represents the:

34. Question

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

35. Question

Which one of the following is a biological component of a pond ecosystem?

36. Question

Asexual reproduction produces:

37. Question

All of the following are possible consequences of global warming EXCEPT for:

38. Question

All of the following have endoskeletons EXCEPT for:

39. Question

The following are all features of insect-pollinated flowers EXCEPT for:

40. Question

Which one of the following diagrams illustrates short-sightedness?

(F = Focal point)

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