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.
When fertilization occurs that leads to formation of a zygote, which of the following processes takes place?
AThe tail of the sperm fuses with the egg cell
BBoth tail and head of the sperm fuse with the egg cell
CThe nucleus of the sperm fuses with the egg cell
DThe egg cell develops on its own without the sperm
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Question 342
waec2012
The hair on the human skin will stand erect when the person is
Ain an air-conditioned room
Bstrolling in the sun
Ctaking a hot drink
Ddoing strenuous exercise
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Question 343
waec2012
Which of the following parts of the eye contains light sensitive cells?
AChoroid
Biris
CRetina
DLens
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Question 344
waec2012
The function of the convex lens in the correction of eye defects is to
Adiverge light rays from far objects to focus image on the retina
Bconverge light rays to focus image behind the retina
Cconverge light rays to focus time image before the retina
Dconverge light rays from far objects to focus their image on the retina
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Question 345
waec2012
A student dissecting am animal specimen discovered that it had two auricle and on ventricle. The animal is likely to a/an
Afish
Breptile
Camphibian
Dbird
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Question 346
waec2012
Impulses are conducted towards the nerve cell through the
Amyelin sheath
Bdendrons
Caxons
Dsynaptic nodes
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Question 347
waec2012
The following are all examples of a simple reflex action, except
Aswallowing
Bsneezing
Cwalking
Dblinking
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Question 348
waec2012
Increasing adrenalin content of the blood would be expected to decrease the flow of blood to the
Aliver
Bheart
Clungs
Dbrain
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Question 349
waec2012
The diagram above is an illustration of the human excretory system. Which of the labelled parts contains the
highest amount of nitrogenous waste?
AI
BII
CIV
DVI
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Question 350
waec2012
The diagrams above are part of the human lungs. Which of the parts is diagram Z taken from
AII
BIII
CIV
DV
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Question 351
waec2012
Which of the individual is likely to have HIV?
AI
BII
CIII
DIV
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Question 352
waec2012
Which of the individual is likely to be suffering from haemophilia?
AI
BII
CIII
DIV
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Question 353
waec2012
The pulmonary circulation involves movement of the blood to and from the
Abrain
BKidney
CLiver
Dlungs
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Question 354
waec2012
The graph above represents the growth pattern of an animal. Which of the following groups of animals shows this
pattern of growth?
ACestoda
BReptilia
CAmphibia
DInsecta
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Question 355
waec2012
The muscle cell fluid of an athlete was tested immediately after a 1 O m race and was found to contain a high
concentration of lactic acid. Explain what could have caused this. The
Aathlete must have eaten food containing lactic acid just before the race
BAthlete must have injected lactic acid into his blood just before the race
Cathletes muscle must have carried out anaerobic respiration during the race
Dathlete must have inhaled lactic acid from the environment during the race
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Question 356
waec2012
Which of the following processes occurs in the second phase of meiosis?
AHomologous chromosomes separate
BTwo daughtercells are formed
CFertilization occurs
DSegregation of genes occurs
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Question 357
waec2012
In which of the following multicellular organisms is-interdependence of cells maintained?
ASpirogyra
BVolvox
CEudorina
DPandorina
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Question 358
waec2012
The disadvantage of complexity of organisation in the higher organisms is that it leads to
Amutual interdependence between component cells
Binternal structural specialization
Cincreased adaptation to environment
Dslower rate of diffusion of oxygen to individual cells
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Question 359
waec2012
The organism at the organ level of organisation of life is
AEuglena
BSpirogyra
CGinger
DTapeworm
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Question 360
waec2012
The epidermis of a leaf is considered an example of a tissue because the cells
