2002 - WAEC Biology Past Questions and Answers - page 4
31
Ecology simply means the study of
A
the properties of a habitat
B
interrelationship between organisms and their environment
C
several species of plants and animals
D
interrelationship between plants and animals.
correct option: b
Users' Answers & Comments32
Which of the following processes removes water from the water cycle?
A
Condensation
B
Perspiration
C
Photosynthesis
D
Transpiration
correct option: d
Users' Answers & Comments33
The importance of practising crop-rotation in agriculture is to
A
control soil erosion
B
maintain the fertility of the soil
C
improve the nutritional value of crops
D
ensure growth of cash crops
correct option: b
Users' Answers & Comments34
In any food chain, the first member must be a
A
carnivore
B
herbivore
C
zooplankton
D
autotroph
correct option: d
Users' Answers & Comments35
Which of the following measures is most likely to cause a damage to the ecosystem in the control of pests
and weeds?
and weeds?
A
Use of ladybird insects to feed on aphids
B
introduction of bacterium to kill larvae of butterfly
C
Introduction of Tilapia fish in ponds to feed on mosquito larvae
D
Spraying insecticides to destroy cotton- stainers in a cotton-field
correct option: d
Users' Answers & Comments36
The total amount of energy entering a food chain is that which is present in the
A
consumer
B
ecosystem
C
producer
D
decomposer
correct option: c
Users' Answers & Comments37
Which of the following terms ensures the survival of an organism in its environment?
A
Hibernation
B
Succession
C
Adaptation
D
Competition
correct option: c
Users' Answers & Comments38
The concave shape of a birds wing during flight, ensures that the greater air pressure under the wings will
A
counteract the effect of gravity
B
lift the bird so that it can remain airborne
C
enable the pectoral ,muscles to contract easily
D
change the direction of the flying bird
correct option: a
Users' Answers & Comments39
The possession of breathing roots is a characteristic of plants growing in
A
mangrove swamp
B
coastal savanna
C
guinea savanna
D
shrub biome
correct option: a
Users' Answers & Comments40
The numbers in a population would rise, if there was an increase in the
A
spread of disease
B
number of deaths
C
number of predators
D
amount of food available
correct option: d
Users' Answers & Comments