2015 - WAEC Biology Past Questions and Answers - page 3
21
Which of the following components make up an ecosystem?
A
Decomposers, animals and non-living factors
B
Living and non-living factors
C
Plants and non-living factors
D
Plants decomposers and non-living factors
correct option: b
Users' Answers & Comments22
Study the diagram above and answer the question
The structure labelled I is
A
a pitcher
B
an onion
C
a flower
D
a tendril
correct option: c
Users' Answers & Comments23
Which of the following organisms is an endo-parasite?
A
Tapeworm
B
Flea
C
Tick
D
Aphid
correct option: a
Users' Answers & Comments24
Which of the following organisms is an endo-parasite?
A
Tapeworm
B
Flea
C
Tick
D
Aphid
correct option: a
Users' Answers & Comments25
Oil applied to the surface of water kills the larvae of mosquitoes through
A
dehydration
B
poisoning
C
starvation
D
Suffocation
correct option: d
Users' Answers & Comments26
Which of the following natural resources is most readily available to all organisms?
A
Oil
B
Water
C
Air
D
Food
correct option: c
Users' Answers & Comments27
Which of the following resources is non-renewable?
A
Forest reserve
B
Mineral deposit
C
Water
D
Wild life
correct option: b
Users' Answers & Comments28
Soil erosion could be prevented by
A
flooding a farmland
B
cover-cropping
C
deforestation
D
leaving the soil bare
correct option: b
Users' Answers & Comments29
Which of the following statements about human blood groups is not true?
A
A is dominant over B
B
O is recessive
C
B is dominant over O
D
A and B are co-dominant
correct option: a
Users' Answers & Comments30
Which of the following traits is not inheritable? Ability to
A
taste PTC
B
roll the tongue
C
move the ear
D
rool the eyeball
correct option: d
Users' Answers & Comments