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1994 - WAEC Biology Past Questions and Answers - page 2

11

In which of the following is a cellulose cell wall present

A
Amoeba
B
Mammalian white blood corpuscle
C
spirogyra
D
paramecium
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12

Which of the following organisms exists as a filament?

A
Euglena
B
Amoeba
C
Volvox
D
paramecium
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13

All the following can illustrate the dynamic nature of the ecosystem except

A
nitrogen cycle
B
carbon cycle
C
water cycle
D
nutrient cycle
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14

Which of the following measures does not ensure conservation?

A
Establishing forest and game reserves
B
Encouraging people to plant trees
C
Founding societies that promote conservation
D
Enacting conservation laws and bye-laws
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15

Which of the following is not required for primary production to occur in plants?

A
Chlorophyl
B
Sugar
C
Water
D
Carbon dioxide
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16

Which of the following blood group(s) is/are the universal donor(s)

A
O
B
A
C
B
D
AB
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17

The branch of science which deals with resemblances, origin and expression of biological variations is
called

A
embryology
B
ecology
C
entomology
D
genetics
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18

Which of the following can cause desert encroachment?

A
Afforestation
B
Irrigation
C
Planting of trees
D
Establishment of game reserve
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19

The morphological, physiological and behavioural characteristics which enable an organism to survive in
its environment is called

A
heredity
B
ecology
C
competition
D
adaptation
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20

Which of the following performs the same function as the contractile vacuole of a unicellular organism?

A
Kidney
B
Alimentary canal
C
Liver
D
Pancreas
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