Carib Quiz - Biology
1. Question

Osmosis is:

2. Question

Cells become specialised to carry out different roles.This process is called:

3. Question

Leaves are thin and flat:

4. Question

In a plant cell, turgor is caused by:

5. Question

All of the following are features of a gas exchange surface EXCEPT for:

6. Question

The length of an insect such as a grasshopper increases in steps.This is because:

7. Question

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

8. Question

Which of the following are advantages of asexual reproduction in a flowering plant?
Ⅰ Large numbers of offspring are rapidly produced.
Ⅱ Favourable genotypes are maintained from one generation to the next.
Ⅲ The plant does not need to rely on wind or insects for pollination.
Ⅳ Several identical individuals grow close together.

9. Question

The chemicals that make up the bodies of animals and plants are called:

10. Question

Which one of the following is NOT a function of the placenta?

11. Question

A relationship between two organisms where one organism derives benefits from the relationship and the other organism derives no benefit, but is not harmed, is called:

12. 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?

13. Question

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

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

The scientific name of an organism is derived from its:

16. Question

The white blood cells that produce antibodies are called:

17. Question

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.

18. Question

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

19. Question

Vegetables like cauliflower, cabbage and broccoli have been bred from the original wild brassica plant by:

20. Question

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

21. Question

Vaccination causes a person′s immune system to produce:

22. Question

The biceps and triceps are an antagonistic pair of muscles because:

23. Question

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

24. Question

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

25. Question

Which of the following statements about lipids is NOT true?

26. Question

All of the following have endoskeletons EXCEPT for:

27. Question

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

28. Question

Plants make growth movements in response to all of the following stimuli EXCEPT for:

29. Question

An alternate form of a gene is called an:

30. Question

The following diagram shows a model used to show how breathing movements take place:

Which part of the model represents the diaphragm?

31. Question

Which of the following is NOT transported in phloem?

32. Question

Which one of the following is NOT a receptor in the body?

33. Question

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

34. Question

Plant stems grow towards a light source.This is an example of:

35. Question

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

36. Question

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

37. Question

Which one of the following chemicals is used to test for starch?

38. Question

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

39. Question

AIDS is a killer disease because:

40. Question

In an ecosystem a population is:

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Chemistry Unit 1