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Biology
WAEC / WASSCE 1996
Basic Ecological Concepts, Ecosystems & Biomes
The factors which determine the type of vegetation a particular habitat will support are related to the
following except
A
nature of the soil particles
B
amount of rainfall
C
mineral content of the soil
D
farming activities
E
depth of the water-table
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #18609)
Biology
WAEC / WASSCE 1996
Variety of Organisms & Classification of Living Things
Which of the following statements is not true of population?
A
Members of a population may be of the same species
B
Members of a population may be of the same species but do not interbreed
C
Size of a population may be limited by space
D
Some species can form another population elsewhere
E
Members of a population must co-exist
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 #18610)
Biology
WAEC / WASSCE 1996
Basic Ecological Concepts, Ecosystems & Biomes
Which of the following is an abiotic factor which affects a population?
A
Predator
B
Parasite
C
Consumer
D
Producer
E
Temperature
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #18611)
Biology
WAEC / WASSCE 1996
Growth, Micro-organisms & Public Health
One of the ecological conditions which favour the spread of malaria is
A
improper disposal of decaying organic matter
B
clearing bushes around dwelling houses
C
presence of water weeds
D
presence of stagnant water in ponds
E
improper disposal of 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 #18612)
Biology
WAEC / WASSCE 1996
Variety of Organisms & Classification of Living Things
Which of the following resources is non-renewable?
A
Livestock
B
Minerals
C
Forest
D
Soil
E
Air
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 #18613)
Biology
WAEC / WASSCE 1996
Adaptation & Evolution
The following are the effects of overgrazing except
A
depletion of useful fodder crops
B
soil and wind erosion of pastureland
C
epidemic of cattle diseases
D
migration of herdsmen
E
scarcity of good pastureland
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 #18618)
Biology
WAEC / WASSCE 1996
Population Ecology, Habitats & Conservation
Which of the following is not a way of conserving natural resources?
A
Adopting good farming practices
B
Establishing forest reserves
C
Establishing of game reserves
D
Encouraging poaching
E
Protecting the endangered species
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 #18619)
Biology
WAEC / WASSCE 1996
Population Ecology, Habitats & Conservation
The need for conservation includes the following except to
A
keep natural resources for future generations
B
preserve them for scientific and recreational purposes
C
maximise the use of natural resources
D
make sure the natural resources are not used
E
ensure that everybody benefits from the natural resources.
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 #18621)
Biology
WAEC / WASSCE 1996
Variation & Genetics (Heredity)
Which of these is not a hereditary variation?
A
Infant paralysis
B
Blood group
C
Sickle cell
D
Shape of face and nose
E
Colour of hair.
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 #18623)
Biology
WAEC / WASSCE 1996
Variation & Genetics (Heredity)
One of Mendel’s experiments was repeated by crossing a red variety of pepper with that of a yellow variety
which produced all red offspring. The red offspring were then self pollinated and these produced both red
and yellow pepper. The yellow colour can be said to be
A
dominant to red
B
recessive to red
C
homozygous to red
D
heterozygous to red
E
linked to red
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 #18626)
Biology
WAEC / WASSCE 1996
Variation & Genetics (Heredity)
Which of the following statements is not true about chromosomes?
A
Each chromosome is made up of two chromatids
B
Body cells have diploid numbers of chromosomes
C
Homologous chromosomes do not occur in pairs naturally
D
The sex cells have haploid number of chromosomes
E
Chromosomes have many tranverse bands
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 #18627)
Biology
WAEC / WASSCE 1996
Variation & Genetics (Heredity)
Cross-breeding is a way of
A
developing superior varieties of plants only
B
developing superior varieties of animals only
C
developing disease-resistant varieties only
D
encouraging random reproduction in agriculture
E
applying the principles of heredity in agriculture
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #18630)
Biology
WAEC / WASSCE 1996
Adaptation & Evolution
Solution
The wings of bats and birds, the flippers of whale and the fins of fish are examples of
A
adaptive radiation
B
vestigial organs
C
continuous variation
D
convergent evolution
E
divergent evolution.
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Well, it depends. The wings of bats and birds, the flippers of whales, and the fins of fish are examples of both homologous(divergent) and analogous(convergent) evolution. They are homologous in that they all evolved from a common ancestral structure (tetrapod limbs) and share similar skeletal patterns. However, they are analogous in that they have evolved similar functions (flight/swimming) independently in different lineages due to similar environmental pressures. For example, the wings of birds and bats, the flippers of whales, and the forelimbs of humans all share a common skeletal framework derived from the tetrapod limb. This similarity is a result of divergent evolution, where a common ancestor's structure is modified over time to serve different functions in different species.
Conversely,they are the result of convergent evolution, where unrelated species evolve similar traits in response to similar environmental pressures. For example, the wings of bats and birds are analogous because they both evolved to enable flight, but they evolved from different ancestral structures (bat wings from forelimbs, bird wings from limbs with feathers). Similarly, the fins of fish and the flippers of whales are analogous, as they both facilitate swimming, but they have different skeletal structures and evolutionary origins.
Since most Biology textbooks just went straight for convergent evolution, then let's go with option D.
Source: Myschool Past Questions Archive (Record #18631)
Biology
WAEC / WASSCE 1996
Adaptation & Evolution
Which of the following is a social insect?
A
Mosquito
B
Butterfly
C
Honey bee
D
Grasshopper
E
Cockroach
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 #18634)
Biology
WAEC / WASSCE 1996
Variation & Genetics (Heredity)
The phenomenon whereby some organisms get established in an environment after struggling for existence
by taking advantage of some special features possessed by the organism is called
A
partial selection
B
artificial selection
C
natural selection
D
mutation
E
competition
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 #18635)