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Biology Past Questions and Answers

Neco Biology Questions

Question 231:

Which of the following is a nitrifying bacterium?

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A Azotobacter
B Clostridium
C Nitrobacter
D Rhizobium
E Staphylococcus

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Question 232:

ln the process of succession, a climax community is established when ____________

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A A stable community is achieved
B The colonizers accommodate the new corners
C The colonizers are wiped out
D The first inhabitants settle down
E The new corners dominate the original inhabitants

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Question 233:

The speed of wind can be measured with an instrument called ____________

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A Anemometer
B Barometer
C Hygrometer
D Photometer
E Thermometer

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Question 234:

All these statements are correct about a vein EXCEPT that it ____________

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A Carries blood to the heart
B Contains blood at low pressure
C Has no valve
D Possesses fairly thick walls
E Usually carries deoxygenated blood

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Question 235:

Tsetse-fly is a vector of a disease known as ____________

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A Cholera
B Dysentery
C Elephantiasis
D Malaria
E Trypanosomiasis

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