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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

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Question 1 of 20 2,099 total questions
Question 151
waec 2019

A man whose blood group is heterozygous B is married to a woman whose blood up is also heterozygous B

Which of the following statements is correct about the blood group of their four offspring?

AThree of them belong to blood group B
BThree of them belong to blood group O
CNone of them belongs to blood group O
DTwo of them belong to blood group B
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Question 152
waec 2019

In a complete dominance monohybrid cross between a pure breeding yellow-flowered plant Y and a pure breeding white-flowered plant y, the result of the first filial generation is _________

A50 % yellow flowers
B75% yellow flowers
Call yellow flowers
Dall white flowers
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Question 153
waec 2019

Which of the following nucleotides is not found in the DNA molecules?

AAdenine
BCytosine
CGuanine
DUracil
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Question 154
waec 2019

The process is called_______

Areplication
Bcell maturation
Ccrossing over
Dmutation
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Question 155
waec 2019

The diagram above is an illustration of a process occurring in a living animal cell. Study it and answer this question

 

The process occurs in the _______

ANucleus
BMitochondrion
CGolgi body
DCytoplasm
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Question 156
waec 2019

Individuals with blood group AB can donate blood to individuals with blood group(s)___________?

AA and B
BA and O
CAB only
DO only
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Question 157
waec 2019

Which of the following factors is not a source of variation in living organisms?

AEnvironment
BInheritance
CMitosis
DMeiosis
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Question 158
waec 2019

Which of the following roles is not performed by a government agency responsible for forest maintenance?

ARegulating the harvest of timber and poaching
BCreating, protecting and managing the forest reserves
CTracking the movement of timber, wood, and wildlife
DRegulating mining activities in the forest
View Explanation & Discuss
Question 159
waec 2019

Which of the following resources is renewable?

APetroleum
BCoal
CIron
DTrees
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Question 160
waec 2019

Cholera is mostly spread by_______

Aair
Bsoil
Cwater
Dnoise
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Question 161
waec 2019

Maize grains are best stored against insect attacks by__________________

Akeeping in a silo
Bstoring in the room
Cleaving them on their cobs
Dcovering with leaves
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Question 162
waec 2019

Tall trees with unbranched trunks which grow above the upper storey of the forest are commonly referred to as _____

AEmergents
BHerbs
CLianes
DShrubs
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Question 163
waec 2019

In the pyramid of energy illustrated above, the organism with the least amount of transferred energy is___________

ASpirogyra
BTadpole
CFish
DBird
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Question 164
waec 2019

Organisms in an ecosystem are usually grouped according to their trophic level into__________

Acarnivores and omnívores,
Bconsumers and parasites
Cproducers, and saprophytes
DProducers and consumers
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Question 165
waec 2019

Which of the following soil fertility improvement methods will have the most negative effect on the ecosystem if not controlled?

AApplication of N-P-K fertilizer
BShifting cultivation
CMixed farming
DCrop rotation
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Question 166
waec 2019

The specific role of a species within íts environment is known as its_________

Ahabitat
Bniche
Ctrophic level
Dbiotic community
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Question 167
waec 2019

The complex relationship between the members of a community and their physical environment is known as________

Acommensalism
Bsymbiosis
Csaprophytism
Decology
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Question 168
waec 2019

If 90 ants are found in a field with a total area of 100 m. what is the population density of the ants?

A0.09
B0.90
C9.00
D90.00
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Question 169
waec 2019

The salinity of a brackish habitat________

Aincreases immediately after rainfall
Bincreases at the end of the rain
Cdecreases with an increase in the number of organisms
Dincreases during the dry season
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Question 170
waec 2019

The conversion of ammonium salts into nitrates is called_______

Aputrefaction
Bdenitrification
Cfixation
Dnitrification
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