CaribQuiz - Biology
1. 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?

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2. Question

Vaccination causes a person′s immune system to produce:

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3. Question

Leaves are thin and flat:

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4. Question

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

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5. Question

In a plant, water and dissolved minerals are transported in the:

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6. Question

In humans, an egg cell is released from an ovary approximately every:

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7. Question

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

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8. Question

Decomposers are important in the process of decay because:

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9. Question

AIDS is a killer disease because:

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10. Question

Which of the following routes taken by blood in the body is correct?

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11. Question

The following are all minerals EXCEPT for:

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12. Question

Which of the following statements about diffusion is NOT true?

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13. Question

Which of the following is NOT transported in phloem?

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14. Question

Which one of the following structures is responsible for controlling entry and exit of materials into and out of the cell?

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15. Question

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

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16. Question

When a person who has diabetes injects himself with insulin it:

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17. Question

Asexual reproduction produces:

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18. Question

Active transport:

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19. Question

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

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20. Question

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:

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21. Question

Which one of the following taxonomic groups contains the greatest number of organisms?

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22. Question

Which one of the following diagrams illustrates short-sightedness?

(F = Focal point)

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23. Question

A cell in an embryo divides by mitosis three times in succession. How many cells will be formed from these divisions?

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24. Question

Anaerobic respiration takes place:

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25. Question

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

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26. 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?

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27. Question

All of the following have endoskeletons EXCEPT for:

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28. Question

The main taxonomic groups in order, starting with the largest, are:

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29. Question

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

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30. Question

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

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31. Question

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

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32. Question

The white blood cells that produce antibodies are called:

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33. Question

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

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34. Question

Malaria is spread by:

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35. Question

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

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36. Question

The scientific name of an organism is derived from its:

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37. Question

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

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38. Question

Simple sugars are called monosaccharides because:

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39. Question

The optimum pH for most enzyme action is:

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40. Question

The correct pathway of water through a plant is:

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