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Biology Past Questions and Answers

Waec Biology Questions

Question 291:

Which of the following is the underlining Principle in the adoption of biological control of pests?

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A Knowledge of agricultural practices by the farmer
B Relationship between plants and animals
C The presence of poisonous chemicals in the farm
D The relative population of plants and animals in the farm
E The predator prey relationship in ecological community

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Question 292:

The largest game reserve in Nigeria is the

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A Kianji game reserve in Niger state
B Zamfara Forest Reserve In Sokoto state
C Yankari game reserve in Bauchi state
D Borgu park reserve in Niger state
E Oban hill Game reserve in Cross River state

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Question 293:

The following agencies are responsible for conservation of in Nigeria except

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A Forest department
B Nigerian conservation society
C Games reserve authority
D Nigerian red cross society
E Ministry of agriculture and Natural resources

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Question 294:

The table below indicates the result of an experiment during which grains of different colours in two maize cobs were counted

Maize cob	White	Pink	Red
I	30	60	30
II	50	99	49

Which of the following ratios agrees with the result?

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A 9:3:3
B 1:2:1
C 1:3:1
D 2:1:1
E 2:3:2

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Question 295:

One of the factors that must be considered for safe blood transfusion is

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A Social class of the donor
B Age of the recipient
C Rhesus factors of the donor and the recipient
D Nationality of the donor
E Weight of the recipient

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