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Biology
WAEC / WASSCE 2020
Science of Living Things
The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;
Organism
Number in the habitat
habitat W
habitat Y
Plankton
126
0
Antelope
0
51
Water flea
10
0
Tilapia
23
0
Lion
0
6
Frog
6
0
Grass
0
250
Which of the following statements about habitat W is correct? The
A
absence of lions and antelopes shows that the habitat is terrestrial
B
presence of Tilapia and planktons shows that the habitat is not aquatic
C
type of organisms present indicate that habitat is aquatic
D
absence of grasses indicates that the habitat is terrestrial
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 #59505)
Biology
WAEC / WASSCE 2020
Science of Living Things
The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;
Organism
Number in the habitat
habitat W
habitat Y
Plankton
126
0
Antelope
0
51
Water flea
10
0
Tilapia
23
0
Lion
0
6
Frog
6
0
Grass
0
250
The number of lions and antelops in habitat Y shows that the lion
A
is the prey while the antelope is the predator
B
is the predator while the antelope is the prey
C
and the antelope are preys to each other
D
and the antelopes are predators
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 #59508)
Biology
WAEC / WASSCE 2020
Science of Living Things
Diagram
Solution
The diagram above illustrates an ecological instrument. Study it and answer the question below;
A disadvantage of the abiotic factor measured by the instrument is that it
Attached Figure / Diagram
A
is an agent of pollination
B
is necessary for germination
C
leads to flooding when in excess
D
is used for irrigation
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
- The rain gauge is an instrument used to collect and measure precipitation (falling water).
- High level of rain can lead to flooding
Source: Myschool Past Questions Archive (Record #59514)
Biology
WAEC / WASSCE 2020
Science of Living Things
The diagram below is an illustration of an ecological instrument. Study it an answer the question below;
When the instrument is in use, it is usually?
A
placed slightly above soil level
B
placed on a table
C
suspended in air
D
suspended to moving water
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 #59515)
Biology
WAEC / WASSCE 2020
Science of Living Things
Solution
Soil with the finest texture is?
A
silt
B
clay
C
sand
D
gravel
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Soils with the finest texture are called clay soils, while soils with the coarsest texture are called sands.
Source: Myschool Past Questions Archive (Record #59516)
Biology
WAEC / WASSCE 2020
Science of Living Things
The position occupied by an organism in food chain is the
A
energy level
B
niche
C
trophic level
D
biomass
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 #59517)
Biology
WAEC / WASSCE 2020
Science of Living Things
The depletion of the ozone layer will result in the earth surface receiving more
A
gamma rays
B
infra-red rays
C
ultraviolet rays
D
X-rays
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 #59518)
Biology
WAEC / WASSCE 2020
Science of Living Things
Use the list of insects below to answer the question below;
I. Cotton stainer II. Honeybee III. Termite IV. Weevil
The insects whose activities are both beneficial and harmful to humans are;
A
I and II
B
II and III
C
II and IV
D
III and 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 #59519)
Biology
WAEC / WASSCE 2020
Science of Living Things
Use the list of insects below to answer the question below;
I. Cotton stainer II. Honeybee III. Termite IV. Weevil
Which of the insects destroys grains?
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 #59521)
Biology
WAEC / WASSCE 2020
Science of Living Things
Conservation of natural resources does not
A
maintain a balanced ecosystem
B
preserve the beauty of nature
C
attract tourists
D
threaten the survival of 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 #59522)
Biology
WAEC / WASSCE 2020
Science of Living Things
A company was prohibited from producing bags made from natural leopard skin. This is an attempt to conserve
A
land
B
water
C
wildlife
D
minerals
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 #59523)
Biology
WAEC / WASSCE 2020
Science of Living Things
Which of the following substances is not a conservable natural resource?
A
Mineral
B
Air
C
Soil
D
Water
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 #59525)
Biology
WAEC / WASSCE 2020
Science of Living Things
A child that can receive blood donation from anybody belongs to the blood group
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 #59526)
Biology
WAEC / WASSCE 2020
Science of Living Things
Variation which exhibits a wide range from one extreme to the other is
A
phenotypic variation
B
discontinuous variation
C
continuous variation
D
genotypic variation
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 #59527)
Biology
WAEC / WASSCE 2020
Science of Living Things
Replication of DNA molecules is catalysed by an enzyme called
A
polymerase
B
ptyalin
C
pepsin
D
amylase
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 #59537)