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.
Which of these statements best defines pyramid of energy?
Aenergy flow from one tropic level to another
Benergy flow from one habitat to another
Cthe amount of energy in a given area
Dthe loss of energy from one organism to another
Ethe rate of energy flow in an area
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Question 1213
neco2005
Autotrophs include all the following EXCEPT
Achemosynthetic bacteria
Bdiatoms
Cgreen plants
Dphytoplankton
Ezooplankton
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Question 1214
neco2005
An example of a carnivorous plant is
Acassytha
Blichen
Cmucor
Dmushroom
Esundew
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Question 1215
neco2005
The number of chromosomes in a gamete is represented by
An
B2n
C4n
D23n
E46n
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Question 1216
neco2005
Which of the following is NOT a type of exoskeleton?
ACartilage
BChitin
CHoot
DNail
EShell
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Question 1217
neco2005
Which of the following enzymes requires acidic medium to function?
AAmylase
BErepsin
CMaltose
DPepsin
EPtyalin
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Question 1218
neco2005
The following can increase crop production EXCEPT
Aerosion control
Bfertilizer application
Cmechanization
Dmonocropping
Epest control
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Question 1219
waec2005
Which of the following is not an evidence of evolution?
AFossil records
BComparative embryology
CPolymorphism
DComparative anatomy
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Question 1220
waec2005
A honey bee worker communicates with others on locating a source of food by
Adancing
Bstinging
Cinstinct
Dflares
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Question 1221
waec2005
Territoriality is a phenomenon among
Alower organisms
Bplants of different species
Cmale animals with a group of females
Danimals and plants
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Question 1222
waec2005
Which of the following organisms is a social insect?
AGrasshopper
BHoney bee
CButterfly
DHousefly
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Question 1223
waec2005
Which of the following is not a correct base pairing on the DNA strand?
AAdenine, Thymine
BCytosine, Guanine
CGuanine, Cytosine
DUracil, Thymine
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Question 1224
waec2005
In a living cell, factors which are responsible for inheritance are located
Aon the nuclear membrane
Bon the nucleolus
Con the chromosomes
Din the nucleoplasm
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Question 1225
waec2005
Which disease is sex-linked and mainly afflicts male offspring?
ASickle cell anaemia
BHaemophilia
CDiabetes
DMalaria
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Question 1226
waec2005
If two parents are sickle cell carriers then their genotypes would be
AHbA HbA and HbS HbS
B. HbS BbS and HbS BbS
CHbA HbS and HbA HbS
DHbA HbA and HbA HbA
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Question 1227
waec2005
If the pink colour of a petal is dominant over white what would be the colour of the flower of the F generation when a pure pink flowered plant is crossed with a white flowered plant?
APurple
BPink
CWhite
DYellow
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Question 1228
waec2005
A person with blood group B can only donate blood to individuals with blood groups
AA and B
BB and AB
CO only
DB only
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Question 1229
waec2005
Which of the following is an example of physiological variation?
ABlood groups
BSkin colour
CFinger prints
DHuman height
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Question 1230
waec2005
Variation which exhibits a wide range from one extreme to the other with very little difference between the intermediates is described as
