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 1891–1905 of 13612 verified questions
Sort by:
Biology
WAEC / WASSCE 2021
Science of Living Things
Which of the following organisms does not undergo incomplete metamorphosis?
A
locust
B
grasshopper
C
butterfly
D
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 #62374)
Biology
WAEC / WASSCE 2021
Science of Living Things
An enzyme reaction may begin to decline when?
A
the optimum temperature is attained
B
the ph of the medium is altered
C
there is an increase in substrate concentration
D
the atmospheric pressure is altered
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 #62375)
Biology
WAEC / WASSCE 2021
Science of Living Things
Diagram
The diagram above is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died. Use this to answer this question.
What precaution should have been taken to prevent the solution from turning green?
Attached Figure / Diagram
A
use a non-green plant for the experiment
B
aerate the solution daily
C
cover the culture vessel with opaque paper
D
keep cotton wool around the seedling to make it dry
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 #62376)
Biology
WAEC / WASSCE 2021
Science of Living Things
Diagram
The diagram above is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died. Use this to answer this question.
The death of the plant was likely caused by?
Attached Figure / Diagram
A
excess supply of nutrients to the plant
B
inadequate supply of water to the plant
C
algal growth in the solution that used up the nutrients
D
inability of the plant to make food due to lack of sunlight
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 #62377)
Biology
WAEC / WASSCE 2021
Science of Living Things
Solution
Plants and animals of an ecosystem make up a?
A
habitat
B
succession
C
community
D
population
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
A community is a group of interacting organisms that may be of the same species or not as long as they share a common habitat.
Source: Myschool Past Questions Archive (Record #62383)
Biology
WAEC / WASSCE 2021
Science of Living Things
Rabbits cannot survive in an aquatic habitat because they have
A
no scales
B
no gills
C
fore limbs
D
lateral line
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 #62384)
Biology
WAEC / WASSCE 2021
Science of Living Things
The illustration below is a food chain.
Grass→grasshopper→domestic fowl→hawk
What would happen if the population of domestic fowl decreases?
A
grasshoppers would decrease
B
hawks would increase
C
grasshoppers would increase
D
grasses available to grasshoppers
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 #62385)
Biology
WAEC / WASSCE 2021
Science of Living Things
Solution
Which of the following features is a characteristic of aquatic plants possession of ?
A
multiple epidermis
B
heavily lignified tissue
C
finely divided leaves
D
succulent stem
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Succulent stems are thick, fleshy stems that can store water. This is an important adaptation for aquatic plants as it helps them float and stay buoyant in the water. Additionally, succulent stems also help these plants store water during times of drought or when they are partially exposed to air.
Source: Myschool Past Questions Archive (Record #62386)
Biology
WAEC / WASSCE 2021
Science of Living Things
An association between living organisms in which one organism lives on and feeds at the expense of the other organism is known as?
A
mutualism
B
commensalism
C
parasitism
D
predation
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 #62387)
Biology
WAEC / WASSCE 2021
Science of Living Things
When a large number of organisms share limited resources, the result is?
A
mutualism
B
extinction
C
commensalism
D
competition
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 #62388)
Biology
WAEC / WASSCE 2021
Science of Living Things
Which of the following behaviours is correctly matched with the corresponding diseases?
A
Smoking cigarette / Liver cirrhosis. Lung cancer, AIDS
B
Having multiple sexual partners / liver cirrhosis, syphilis, AIDS.
C
Living near dirty gutter / Lung cancer, syphilis, river blindness.
D
Eating uncooked meatf/fdysentery, cholera. food poisoning.
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 #62389)
Biology
WAEC / WASSCE 2021
Science of Living Things
Endangered species are organisms that are?
A
likely to migrate to other favourable lands
B
likely to disappear from the surface of the earth
C
reproducing profusely in an area
D
dangerous to humans and attacking other animals
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 #62390)
Biology
WAEC / WASSCE 2021
Science of Living Things
Which of the following practices is a wildlife conservation method?
A
use of cover crops
B
crop rotation
C
mulching
D
discouraging poaching
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 #62391)
Biology
WAEC / WASSCE 2021
Science of Living Things
Which of the following resources cannot be conserved?
A
forest
B
water
C
soil
D
garbage
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 #62392)
Biology
WAEC / WASSCE 2021
Science of Living Things
Which of the following statements about sickle cell anaemia is correct?
A
it is caused by sex-linked genes
B
it is more common in males than in females
C
two sickle cell carrier parents may have a sickling child
D
it is caused by recessive genes
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 #62398)