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Biology Past Questions

Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

2,099 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10
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Past Questions

2,099 questions
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Question 1 of 20 2,099 total questions
Question 301
waec 2013
Which of the following human activities would help prevent endangered species from extinction?
AUncontrolled killing of species
BRegular clearing of the forest vegetation
CTemporary maintenance of species in zoological gardens
DRegular irrigation of their natural habitats
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Question 302
waec 2013
The absence of alimentary canal in the parasitic flatworm can be attributed to the fact that
Aits body does not feed
Bit has no enzymes
Cits body absorbs digested food
Dit has suckers on the scolex
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Question 303
waec 2013
The following organisms are pests of plants except
Abirds
Bnematodes
Cbacteria
Drodents
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Question 304
waec 2013

Ascaris lumbricoides is a parasitic

Aflat worm
Bround worm
Carthropod
Delastic worm
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Question 305
waec 2013
Rhizobium which lives in the root nodules of leguminous plants is an example of the association known as
Acommensalism
Bepiphytism
Cmutualism
Dsaprophytism
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Question 306
waec 2013
The main reason for immunizing children is to
Adestroy pathogens in their bodies
Bincrease the production of white blood cells
Cstimulate the production of antibodies
Dsimulate the production of antigens
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Question 307
waec 2013
A pyramid of numbers is constructed by
Acomparing living and non-living things
Bmeasuring productivity
Cconducting census
Dlabelling the living organisms
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Question 308
waec 2013
The bacteria that reduce nitrates in the soil into gaseous nitrogen are referred to as
Anitrifying bacteria
Bdenitrifying bacteria
Cputrefying bacteria
Dsaprophytic bacteria
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Question 309
waec 2013
The frog is considered a better swimmer than the toad because it
Ahas more pronounced webbed digits
Bhas much longer and stronger hind limbs
Clives in water most of the time
Dis more streamlined than the toad
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Question 310
waec 2013
The producers in a food chain in an aquatic environment are
Abirds
Bphytoplankton
Czooplankton
Dfishes
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Question 311
waec 2013
The maximum size of a population that a given area can support is known as
Apopulation density
Bcarrying capacity
Cpopulation growth
Dmaximum population
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Question 312
waec 2013
Ecology simply means the study of
Aparticular species of plants and animals
Bthe interrelationship between orgganisms and their environment
Cthe properties of a habitat
Dthe interrelationship between plants and animals
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Question 313
waec 2013
Which of the following associations is an example of epiphytism?
ALice in the human hair
BMistletoe on citus fruit.
CEgret on cow
DFern on palm tree
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Question 314
waec 2013
Which of the following substances is not complex carbohydrate?
AGlycogen
BCellulose
CStarch
DGlucose
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Question 315
waec 2013

The correct arrangement of food classes of the same quantity in the order of magnitude of energy value in animals in descending order is

ACarbohydrates, fats and oils, water, protein
BFats and oils, carbohydrates, protein, water
CWater, fats and oils, carbohydrates, protein
DProtein, fats and oils water and carbohydrates
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Question 316
waec 2013
The name of the enzyme that catalyses the conversion of glucose to glucose-6-phosphate at the beginning of glycolysis is
Aphospho-fructokinase
Bglucose isomerase
Chexokinase
Dglucose-6-kinase
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Question 317
waec 2013
Which of the following factors is likely to increase the rate of transpiration in plants?
AA reduction in the number of stomata per unit surface area
BIncrease in humidity around the leaves of plants
CAn increase in leaf surface area to volume ratio
DRemoval of leaves from plant
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Question 318
waec 2013

Conduction of water and mineral salts through the xylem vessels is enhanced because the xylem cells are

Athickened with lignin
Blong, narrow tubes placed end to end
Cclose to the endodermis
Dcentrally placed in the roots
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Question 319
waec 2013
The process by which plants manufacture food from carbon dioxide and water using energy from the sun is called
Achemosynthesis
Bphotosynthesis
Canabolism
Dcatabolism
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Question 320
waec 2013

The resolution of a microscope refers to its power to

Aincrease an object's apparent size
Bdistinguish clearly between two objects
Cscan the surface of an object
Dfocus on an object
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