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Biology
WAEC / WASSCE 2012
Excretion & Homeostasis
Diagram
The diagram above is an illustration of the human excretory system. Which of the labelled parts contains the
highest amount of nitrogenous waste?
Attached Figure / Diagram
A
I
B
II
C
IV
D
VI
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 #20141)
Biology
WAEC / WASSCE 2012
Variety of Organisms & Classification of Living Things
Increasing adrenalin content of the blood would be expected to decrease the flow of blood to the
A
liver
B
heart
C
lungs
D
brain
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 #20142)
Biology
WAEC / WASSCE 2012
Nervous, Hormonal Coordination & Sense Organs
The following are all examples of a simple reflex action, except
A
swallowing
B
sneezing
C
walking
D
blinking
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 #20147)
Biology
WAEC / WASSCE 2012
Nervous, Hormonal Coordination & Sense Organs
Impulses are conducted towards the nerve cell through the
A
myelin sheath
B
dendrons
C
axons
D
synaptic nodes
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 #20149)
Biology
WAEC / WASSCE 2012
Respiration & Gaseous Exchange
The muscle cell fluid of an athlete was tested immediately after a 1 O m race and was found to contain a high
concentration of lactic acid. Explain what could have caused this. The
A
athlete must have eaten food containing lactic acid just before the race
B
Athlete must have injected lactic acid into his blood just before the race
C
athletes muscle must have carried out anaerobic respiration during the race
D
athlete must have inhaled lactic acid from the environment during the race
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 #20111)
Biology
WAEC / WASSCE 2012
Variety of Organisms & Classification of Living Things
Diagram
The graph above represents the growth pattern of an animal. Which of the following groups of animals shows this
pattern of growth?
Attached Figure / Diagram
A
Cestoda
B
Reptilia
C
Amphibia
D
Insecta
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 #20123)
Biology
WAEC / WASSCE 2012
Excretion & Homeostasis
The pulmonary circulation involves movement of the blood to and from the
A
brain
B
Kidney
C
Liver
D
lungs
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 #20124)
Biology
WAEC / WASSCE 2012
Variation & Genetics (Heredity)
Diagram
Which of the individual is likely to be suffering from haemophilia?
Attached Figure / Diagram
A
I
B
II
C
III
D
IV
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 #20138)
Biology
WAEC / WASSCE 2012
Growth, Micro-organisms & Public Health
Diagram
Solution
Which of the individual is likely to have HIV?
Attached Figure / Diagram
A
I
B
II
C
III
D
IV
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
A person with low white blood cells won't have enough lymphocytes to fight against infections and they will be prone to many illnesses including HIV
Source: Myschool Past Questions Archive (Record #20139)
Biology
WAEC / WASSCE 2012
Reproduction in Plants & Animals
Which of the following structures in a flower develops into the seed?
A
Testa
B
lntegument
C
Ovule
D
Ovary
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 #20329)
Biology
WAEC / WASSCE 2012
Variety of Organisms & Classification of Living Things
Diagram
An illustration of a human male reproductive system is shown above. Which
of the labelled parts can be cut to-ensure permanent sterility?
Attached Figure / Diagram
A
I
B
II
C
III
D
IV
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 #20332)
Biology
WAEC / WASSCE 2012
Reproduction in Plants & Animals
Solution
The brightly coloured petals in some plants is an adaptive colouration for
A
feeding
B
pollination
C
dispersal
D
shedding
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Brightly coloured petals are a visual signal to attract pollinators. These pollinators are then lured to the flower by the nectar and other floral rewards that the plant offers. When pollinators, such as bees or butterflies, visit a flower to collect nectar, pollen grains from the male part of the flower (anthers) stick to their bodies. The bright colours of petals are a primary visual cue that serves as an adaptation for attracting pollinators, such as insects, birds, and bats, which facilitate the transfer of pollen necessary for plant reproduction.
Source: Myschool Past Questions Archive (Record #20333)
Biology
WAEC / WASSCE 2012
Variety of Organisms & Classification of Living Things
Squirrels easily kill some trees because
A
they inject poisonous substances into the trees.
B
most trees are susceptible to squirrel bites
C
they feed voraciously on the roots
D
they gnaw the bark and destroy
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 #20334)
Biology
WAEC / WASSCE 2012
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
The major role played by accessory pigments during photosynthesis is to?
A
add colour to plants but not to trap light energy
B
trap light energy that chlorophyll cannot absorb
C
transfer energy from chlorophyll to other pigments
D
prevent chlorophyll from absorbing unnecessary light
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Accessory pigments are light-absorbing compounds, found in photosynthetic organisms, that work in conjunction with chlorophyll a.
Source: Myschool Past Questions Archive (Record #20335)
Biology
WAEC / WASSCE 2012
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The main raw materials required for photosynthesis are
A
oxygen and water
B
oxygen and carbon dioxide.
C
oxygen and chlorophyll
D
carbon dioxide and water
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 #20336)