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Biology WAEC / WASSCE 2019 Science of Living Things
Deficiency in insulin could lead to________
A
cirrhosis
B
hepatitis
C
diabetes
D
nephritis
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
The conversion of ammonium salts into nitrates is called_______
A
putrefaction
B
denitrification
C
fixation
D
nitrification
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
The salinity of a brackish habitat________
A
increases immediately after rainfall
B
increases at the end of the rain
C
decreases with an increase in the number of organisms
D
increases during the dry season
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
If 90 ants are found in a field with a total area of 100 m. what is the population density of the ants?
A
0.09
B
0.90
C
9.00
D
90.00
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
The complex relationship between the members of a community and their physical environment is known as________
A
commensalism
B
symbiosis
C
saprophytism
D
ecology
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
The specific role of a species within íts environment is known as its_________
A
habitat
B
niche
C
trophic level
D
biotic community
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Cholera is mostly spread by_______
A
air
B
soil
C
water
D
noise
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Which of the following resources is renewable?
A
Petroleum
B
Coal
C
Iron
D
Trees
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Which of the following roles is not performed by a government agency responsible for forest maintenance?
A
Regulating the harvest of timber and poaching
B
Creating, protecting and managing the forest reserves
C
Tracking the movement of timber, wood, and wildlife
D
Regulating mining activities in the forest
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Which of the following factors is not a source of variation in living organisms?
A
Environment
B
Inheritance
C
Mitosis
D
Meiosis
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Individuals with blood group AB can donate blood to individuals with blood group(s)___________?
A
A and B
B
A and O
C
AB only
D
O only
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Which of the following soil fertility improvement methods will have the most negative effect on the ecosystem if not controlled?
A
Application of N-P-K fertilizer
B
Shifting cultivation
C
Mixed farming
D
Crop rotation
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Organisms in an ecosystem are usually grouped according to their trophic level into__________
A
carnivores and omnívores,
B
consumers and parasites
C
producers, and saprophytes
D
Producers and consumers
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
In the pyramid of energy illustrated above, the organism with the least amount of transferred energy is___________
Attached Figure / Diagram
Question diagram
A
Spirogyra
B
Tadpole
C
Fish
D
Bird
medium Difficulty
Biology WAEC / WASSCE 2019 Science of Living Things
Tall trees with unbranched trunks which grow above the upper storey of the forest are commonly referred to as _____
A
Emergents
B
Herbs
C
Lianes
D
Shrubs
medium Difficulty
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