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Biology Past Questions and Answers

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Biology Questions

Question 281:

A pyramid of numbers can be defined as

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A The number of plants and animals in an ecosystem
B An arrangement of organism according to their habitat
C The numerical relationships of a food chain
D The number of plants and animals in a population
E The total number of species and general in a community

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Question 282:

In man, spermatozoa are never found in the

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A Testis
B Urethra
C Epididymis
D Prostrate glands
E Vas deferens

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Question 283:

Which of the following statements is TRUE of inhalation of air by man?

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A The ribs are not raised
B Diaphragm is raised
C Intercostal muscles relax
D Pressure of the thoracic cavity increase
E Size of thoracic cavity increase

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Question 284:

If the gall bladder of a man is removed by surgery, which of the following processes will be most seriously affected?

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A Digestion of fats and oil
B Formation of urea
C Digestion of starch
D Conversion of protein
E Storage and release of the urine

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Question 285:

Flatworms and roundworms are said to be invertebrates because

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A They are small animals
B They can live inside the vertebrates
C Some of them are unicellular
D They have no backbones
E They are parasitic

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