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Biology
WAEC / WASSCE 2006
Growth, Micro-organisms & Public Health
Which of these diseases cannot be spread by an insect?
A
Cholera
B
Malaria
C
Trypanosomiasis
D
Measles
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #20882)
Biology
WAEC / WASSCE 2006
Variety of Organisms & Classification of Living Things
Solution
Air pollution can be reduced by the following methods except?
A
building tall factory chimneys
B
passing waste gases through filters and absorbers
C
using lead-free petrol in car
D
recycling tins, cans and bottles
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Option D -recycling tins, cans and bottles is correct because recycling solid materials like tins, cans, and bottles is a waste-management technique targeted at reducing land and water pollution. While recycling reduces the demand for raw manufacturing (which indirectly spares some energy), it does not serve as a direct mechanism for reducing active air pollution emissions in the way the other listed methods do.
Source: Myschool Past Questions Archive (Record #20885)
Biology
WAEC / WASSCE 2006
Basic Ecological Concepts, Ecosystems & Biomes
An effective management of natural resources to ensure their continued yield from generation to generation may involve all the following except
A
protection of wildlife
B
prevention of habitat destruction
C
biological control of pests
D
disposal of raw sewage into the sea
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #20886)
Biology
WAEC / WASSCE 2006
Variety of Organisms & Classification of Living Things
Which of the following orders correctly represents the trend in eutrophication?
A
Lack of oxygen → Death of aquatic organisms → Massive algal growth
B
Excess nitrates and phosphates → Massive algal growth → Lack of oxygen → Death of aquatic organisms
C
Heavy mineralization → Lack of oxygen → Massive algal growth
D
Excess nitrates and phosphates → Lack of oxygen → Massive algal growth → Death of aquatic organisms
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #20887)
Biology
WAEC / WASSCE 2006
Population Ecology, Habitats & Conservation
The following practices can contribute towards the conservation of natural resources except
A
afforestation
B
deforestation
C
contour ploughing
D
establishment of Game Reserves
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #20888)
Biology
WAEC / WASSCE 2006
Variety of Organisms & Classification of Living Things
Variation is a factor which
A
differentiates between individuals of the same species
B
qualifies an organism to live with others
C
enables organisms to adapt to the environment
D
states the external features of an organism
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #20890)
Biology
WAEC / WASSCE 2006
Variation & Genetics (Heredity)
Which of the following trait in humans is not a morphological variation?
A
Height
B
Shape of head
C
Colour of skin
D
Ability to roll the tongue
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #20891)
Biology
WAEC / WASSCE 2006
Variation & Genetics (Heredity)
The blood group in humans referred to as a universal recipient is
A
o
B
A
C
B
D
AB
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #20892)
Biology
WAEC / WASSCE 2006
Variation & Genetics (Heredity)
If a heterozygous red flowered plant, (Rr) was self-fertilized, the offspring would be expected to be
A
all red flowered plants
B
all white flowered plants
C
red flowered, white flowered plants
D
white flowered red flowered plants
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #20893)
Biology
WAEC / WASSCE 2006
Variation & Genetics (Heredity)
The contrasting pair of genes affecting a trait and located at the same position on homologous chromosomes is
referred to as
A
chromatids
B
mutants
C
alleles
D
chromatin
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #20894)
Biology
WAEC / WASSCE 2006
Cell Structure, Organization & Cell Division
The haploid number of chromosomes in humans is
A
48
B
46
C
24
D
23
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #20895)
Biology
WAEC / WASSCE 2006
Variation & Genetics (Heredity)
a pure breeding white cat (homozygous dominant) mates with a pure breeding black cat (recessive), what would be the fur colour of F1 generation
A
Homozygous white
B
Homozygous black
C
Heterozygous white
D
Heterozygous black
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #20896)
Biology
WAEC / WASSCE 2006
Reproduction in Plants & Animals
Solution
Courtship behaviour in animals may include all of the following except
A
howling of a dog
B
dancing of the worker bee
C
croaking of a toad
D
basking in the sun by a lizard
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Courtship behaviour in animals is a set of display behaviours in which an animal attempts to attract a mate and exhibit their desire to copulate. These behaviours often include visual displays, sound production, or specific movements to attract mates. Options 1, 2 and 3 are examples of courtship behaviours. However, basking in the sun by a lizard is not a courtship behaviour but a thermoregulatory behaviour where lizards absorb heat from the sun, which is necessary for their metabolic processes.
Source: Myschool Past Questions Archive (Record #20897)
Biology
WAEC / WASSCE 2006
Variety of Organisms & Classification of Living Things
Honey-Bee workers carry out the following functions except
A
laying eggs
B
building nests
C
cleaning the nest
D
gathering food
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #20898)
Biology
WAEC / WASSCE 2006
Adaptation & Evolution
The long necks and legs of the present day giraffes were some of the basis of
A
Darwins’ theory of evolution
B
Mendel’s theory of inheritance
C
Lamarck’s theory of evolution
D
DeVries theory of evolution
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #20899)