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Biology WAEC / WASSCE 2010 Population Ecology, Habitats & Conservation
Which of the following factors is the main problem facing xerophytic plants?
A
Competition for sunlight
B
Conservation of excess water
C
inadequate roots for water absorption
D
Lack of adequate water
medium Difficulty
Biology WAEC / WASSCE 2010 Variety of Organisms & Classification of Living Things
The following are greenhouse gases except
A
carbon dioxide
B
chlorofluorocarbon
C
methane
D
oxygen
medium Difficulty
Biology WAEC / WASSCE 2010 Adaptation & Evolution
Rural-urban migration in developing countries can be prevented by
A
increasing the number of years in school
B
putting up more factories in urban areas
C
having boarding schools in rural areas
D
even distribution of facilities in both regions
medium Difficulty
Biology WAEC / WASSCE 2010 Supporting Tissues & Skeletal System
Muscles are attached to bones by means of
A
tendons
B
ligaments
C
cartilage
D
nerves
medium Difficulty
Biology WAEC / WASSCE 2010 Population Ecology, Habitats & Conservation
In a population, food shortage may lead to
A
an increased survival rate
B
high reproduction rate
C
intra-specific competition
D
low rate of migration
medium Difficulty
Biology WAEC / WASSCE 2010 Population Ecology, Habitats & Conservation
The following effects are associated with deforestation except
A
gully erosion
B
extinction of plant species
C
migration of wildlife
D
increase in rainfall
medium Difficulty
Biology WAEC / WASSCE 2010 Population Ecology, Habitats & Conservation
The main reason for the conservation of wildlife is to
A
create national parks for recreation
B
maintain ecological balance in communities
C
prevent hunters from being 'cruel to animals
D
save some species from extinction.
medium Difficulty
Biology WAEC / WASSCE 2010 Variety of Organisms & Classification of Living Things
Which of the following is an example of variation?
A
Blood
B
Tongue rolling
C
Reproduction
D
Growth
medium Difficulty
Biology WAEC / WASSCE 2010 Variety of Organisms & Classification of Living Things
The parameters of size, height, weight and colour in a population of living things are examples of
A
environmental variation
B
non-heritable variations
C
continuous variations
D
discontinuous variations
medium Difficulty
Biology WAEC / WASSCE 2010 Variation & Genetics (Heredity)
Fingerprints are useful in crime detection because
A
the police have sophisticated fingerprint machines
B
thieves may leave their prints at the scene of a crime
C
no two people have the same fingerprint
D
fingerprints are easy to make
medium Difficulty
Biology WAEC / WASSCE 2010 Variation & Genetics (Heredity)
A person with blood group, O can be given blood from persons who have blood belonging to
A
group O only
B
group A only
C
groups A and O
D
groups A, B and O
medium Difficulty
Biology WAEC / WASSCE 2010 Variation & Genetics (Heredity)
A man heterozygous for albino gene marries a woman who is also heterozygous for the gene. Both have normal skin colour. The probability that they will have an albino child is
A
1/3
B
1/4
C
4/4
D
2/4
medium Difficulty
Biology WAEC / WASSCE 2010 Variation & Genetics (Heredity)
Which of the following statements about heredity is not true? In heredity the traits are
A
carried by genes
B
contained in the ovum and sperm
C
always transmitted by one parent
D
transmitted from parents to offspring
medium Difficulty
Biology WAEC / WASSCE 2010 Nutrition in Plants & Animals (Photosynthesis & Food Substances)
An example of a saprophytic relationship is a / an
A
vulture feeding on decaying meat
B
mushroom growing on decaying vegetation
C
boy eating stale bread
D
earthworm feeding on decaying vegetation.
medium Difficulty
Biology WAEC / WASSCE 2010 Growth, Micro-organisms & Public Health
In artificial selection, individuals without desirable traits may be prevented from mating by
A
outbreeding
B
sterilization
C
inbreeding
D
genetic engineering
medium Difficulty
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