Question Library
Browse, filter, and study verified past examination questions with step-by-step mathematical reasoning.
Searching 18,000+ Questions...
Sifting topics, KaTeX formulas & verified solutions
Showing 11116–11130 of 29821 verified questions
Sort by:
Biology
WAEC / WASSCE 2011
Basic Ecological Concepts, Ecosystems & Biomes
Ecological investigation in a habitat includes the following procedures except
A
choosing a habitat
B
identification of specimens
C
determining the genetic makeup of specimens
D
measuring abiotic and biotic factors
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 #21728)
Biology
WAEC / WASSCE 2011
Basic Ecological Concepts, Ecosystems & Biomes
Which of the following substances when lost from the body of a mammal will not be returned to the ecosystem?
A
Sweat
B
Urea
C
Heat energy
D
Carbon dioxide
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 #21733)
Biology
WAEC / WASSCE 2011
Basic Ecological Concepts, Ecosystems & Biomes
The rate of decomposition of organisms is faster in the tropical rain forest than in other biomes because
A
of the relatively constant daylight
B
there are more plants per square feet
C
of abundance of water
D
of constant cool temperature
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 #21735)
Biology
WAEC / WASSCE 2011
Population Ecology, Habitats & Conservation
A xerophyte conserves water by possession of the following features except
A
thick cuticle
B
sunken stomata
C
broad leaves
D
fleshy stem
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 #21736)
Biology
WAEC / WASSCE 2011
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The falling off of leaves of deciduous trees is helpful to the plant because it
A
reduces the rate of transpiration
B
enables the plant to conveniently eliminate its excretory products
C
enables the plant to bear more fruits
D
ensures that the limited mineral salts get to only growing regions
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 #21738)
Biology
WAEC / WASSCE 2011
Variety of Organisms & Classification of Living Things
A sample of wet garden soil of known weigh was heated to constant weight. The loss of weight is due to loss of
A
water
B
organic matter
C
water and organic matter
D
water and inorganic matter
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 #21739)
Biology
WAEC / WASSCE 2011
Population Ecology, Habitats & Conservation
Assuming that a period of stable population size is followed by a period when natality increases by ten (1O) per cent and immigration increases by twenty (20) percent of population size. The population size will
A
be at equilibrium
B
increase by forty (40) per cent
C
begin to increase
D
begin to decrease
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 #21741)
Biology
WAEC / WASSCE 2011
Growth, Micro-organisms & Public Health
Solution
Which of the following methods does not make water fit for drinking?
A
Addition of chlorine
B
Boiling
C
Distillation
D
Addition of alum
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Chlorine is one of the most commonly used disinfectants for water disinfection. Addition of Chlorine helps to kill certain bacteria and other microbes in tap water
Source: Myschool Past Questions Archive (Record #21742)
Biology
WAEC / WASSCE 2011
Growth, Micro-organisms & Public Health
Vaccination results in
A
aiding red blood cells to carry more oxygen
B
production of antibodies which destroy toxins of germs
C
arresting excessive bleeding
D
production of white blood cells which engulf and digest bacteria.
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 #21743)
Biology
WAEC / WASSCE 2011
Digestive System & Feeding Mechanisms
Leguminous crops are incorporated into crop rotation in order to
A
improve aeration of the soil.
B
promote nitrogen fixation
C
increase the rate of soil formation
D
improve upon the water holding capacity of the soil
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 #21744)
Biology
WAEC / WASSCE 2011
Basic Ecological Concepts, Ecosystems & Biomes
Which of the following practices improves crop yield in a clayey soil? Addition of
A
more water and humus
B
lime and humus
C
fertilizers
D
weedicides and fertilizers
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 #21745)
Biology
WAEC / WASSCE 2011
Population Ecology, Habitats & Conservation
Which of the following activities promotes forest conservation?
A
Lumbering
B
Use of firewood for cooking
C
Afforestation
D
Production of paper
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 #21747)
Biology
WAEC / WASSCE 2011
Variation & Genetics (Heredity)
Which of the following statements is not true about continuous variation? It
A
is usually controlled by several genes
B
can be influenced by environmental factors
C
follows a normal distribution curve
D
is usually controlled by one or two pair(s) of genes
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 #21749)
Biology
WAEC / WASSCE 2011
Variation & Genetics (Heredity)
Acquired characters are
A
received from parents
B
passed to offspring
C
caused by the environment
D
caused by mutation
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 #21751)
Biology
WAEC / WASSCE 2011
Variation & Genetics (Heredity)
Solution
Differences in characteristics observed between individuals of the same species is known as
A
trait
B
phenotype
C
mutation
D
variation
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Variation refers specifically to the observable differences in characteristics among individuals belonging to the same species. These differences can be physical (such as height and eye color), genetic, or behavioral. Variation is driven by both genetic factors (inherited from parents) and environmental influences (such as diet or climate).
Source: Myschool Past Questions Archive (Record #21753)