1990 - WAEC Biology Past Questions and Answers - page 2
11
Which of the following is not a function of the mammalian skeleton? It
A
gives the body its shape
B
provides a framework on which internal organs are suspended
C
protects soft and delicate parts of the body
D
provides attachment for muscles
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12
What type of vertebra is represented in the diagram?
A
Atlas
B
Axis
C
Cervical vertebra
D
Sacrum
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13
The structure labelled A represents the
A
transverse process
B
neural spine
C
neural canal
D
centrum
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14
Which of the following statements is not correct about the functions of each group
of mammalian vertebrae?
A
Cervical vertebrae support the neck
B
Thoracic vertebrae articulate with the ribs
C
Lumbar vertebrae provide attachment for abdominal muscles
D
Sacral vertebrae support the skull and allow nodding and rotating movements
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15
The stems of young herbaceous plants are kept upright mainly by
A
osmotic pressure
B
turgor pressure
C
transpiration pull
D
suction pressure
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16
Different tissues in plants contribute to the support of the parts as a result of the following characteristics
except
A
malleability
B
rigidity
C
flexibility
D
resilience
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17
Water vapour is lost in plants during transpiration through
A
stomata and lenticels
B
xylem and stomata
C
sclerenchyma and stomata
D
parenchyma and lenticels
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18
Gaseous exchange takes place in the adult toad through the
A
buccal cavity, bladder and lungs
B
buccal cavity, skin and lungs
C
tympanic membrane, lungs and gills
D
buccal cavity, skin and spiracle
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19
Breathing movement in mammals is accompanied by regular movements of the diaphragm and the
A
intercostal muscles
B
vertebral column
C
clavicle
D
pleural cavity
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20
Which of the following are components of glomerular filtrate?
A
All the components of Blood except mineral salts
B
Water and salt only
C
All the components of blood except plasma protein and cells
D
Plasma proteins, red and white blood cells
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