1993 - WAEC Biology Past Questions and Answers - page 4
31
Which of the following best describes a marine habitat? A large body of water A
A
which has no distinctive colour or taste
B
with high concentration of salt
C
with tittle suspended materials
D
with no water weeds
correct option: b
Users' Answers & Comments32
The following are features of Northern Guinea Savanna except
A
presence of tall trees with thick bark
B
bare soil with very few trees
C
presence of fire-resistant trees
D
abundant herbivores
correct option: e
Users' Answers & Comments33
Which of the following explains the term pyramid of numbers?
A
The number of organisms in a trophic level
B
The relationship between plants in different trophic levels
C
The number of saprophytes and parasites in a habitat
D
The number of predators in a habitat
correct option: e
Users' Answers & Comments34
In which of the following processes is carbondioxide not given out?
A
Respiration in plants
B
Decay of organism
C
Burning of organic matter
D
Burning of fuels
correct option: e
Users' Answers & Comments35
Sea water taken in by a living organism can be recycled into the atmosphere through all the following
processes except
processes except
A
transpiration
B
digestion
C
excretion
D
respiration
correct option: b
Users' Answers & Comments36
Which of the following water pollutant may contain organisms that cause dysentery?
A
Pesticides
B
Sewage
C
Industrial wastes
D
Fertilizers
correct option: b
Users' Answers & Comments37
Which of the following is not an adaptation of plants or animals to desert environment?
A
Well developed tap root system
B
Small leaves with thick Epidermis
C
Stems with spike-like leaves
D
Metabolic waste in the form of uric acid in some animals
correct option: e
Users' Answers & Comments38
A climax community is characterised by
A
a stable composition of plant and animal species
B
rapid changes in the composition of species
C
constant changes in appearance of the habitat
D
different species occurring at different times
correct option: a
Users' Answers & Comments39
Which of the following is not a characteristic of overcrowding in plant and animal community?
A
Population outstripping available space
B
Population exceeding available food
C
Competition within the population
D
increase in primary production
correct option: d
Users' Answers & Comments40
The use of predators or parasites to control pests in the farm is known as
A
predator control
B
chemical control
C
biological control
D
animal control
correct option: c
Users' Answers & Comments