Classroom

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

Select subject

Download PHP app Ask a Question Check Syllabus Past Question Videos Topic Video Lessons

Take a test

Custom CBT

Create and set up a CBT environment with your preferred subjects.

JAMB CBT Simulator

Practice JAMB CBT with real UTME past questions in CBT format.

WAEC CBT Practice 2026 Simulator

CB-WASSCE styled past question practice.

NECO CBT Practice 2026 Simulator

SSCE & GCE styled past question practice.

Past Questions

2,099 questions

Question 1 of 20 2,099 total questions

Question 1031

waec 1988

Which of the following major ideas were proved by Gregor Mendel?

AThere is a tendency among organisms `to increase rapidly in number if conditions are favourable

BThere is a struggle for existence among a very large number of offspring

CNature selects organisms which will survive to produce their kind

DAll species exhibit structural and functional variations

ECharacteristics of an organism are controlled by genes occurring in pairs

View Explanation & Discuss

Question 1032

waec 1988

During blood transfusion, agglutination may occur as a result of the reaction between

Asimilar antigens and antibodies

Bcontrasting antigens and antibodies

Ctwo different antigens

Dtwo different antibodies

Ewhite blood cells from the two individuals.

View Explanation & Discuss

Question 1033

waec 1988

Which of the following .is not part of the objectives of conservation of natural resources?

ATo eliminate wild animals in order to enable other plants and animals survive

BTo use our resources on sustained yield basis

CTo guard against indiscriminate killing of plants and animals

DTo guard against the extinction and exhaustion o natural resources

ETo protect the environment

View Explanation & Discuss

Question 1034

waec 1988

Which of the following steps would not be taken to protect or conserve fishing grounds from over-exploitation?

A. Use of nets with all sizes of mesh

BUse of nets with a particular mesh size

CBan on harvesting of some species

DRegulating the size of ships allowed into fishing grounds

ELimiting the period of fishing in the waters

View Explanation & Discuss

Question 1035

waec 1988

A constituent of the exhaust gases of motor vehicles which causes serious air pollution is

Awater vapour

Bcarbondioxide

Ccarbon monoxide

Doxygen

Eozone

View Explanation & Discuss

Question 1036

waec 1988

The vector of the malarial parasite is the

Amale Anopheles

Bfemale Culex

Cmale Culex

Dfemale Anopheles

Efemale Aedes

View Explanation & Discuss

Question 1037

waec 1988

Which of the following are not causative organisms of plant diseases?

AFungi

BViruses

CBacteria

DNematodes

ECercariae

View Explanation & Discuss

Question 1038

waec 1988

The causative organism of sleeping sickness is the?

ATrypanosome

BPlasmodium

CVibrio bacterium

Dpenicillin

Etsetse fly

View Explanation & Discuss

Question 1039

waec 1988

Which of the following statements is not true of a climax vegetation? It

Ais an ecological phenomenon

Bis a stable community

Celiminates competition

Dresults from succession

Einvolves the colonization of a habitat

View Explanation & Discuss

Question 1040

waec 1988

Terrestrial organisms which are capable of maintaining their body temperature constant within fairly close
limits are referred to as

Athermoclines

Bhomotherms

Cpoikilotherms

Deurytherms

Estenotherms

View Explanation & Discuss

Question 1041

waec 1988

Which of the following factors is not associated with aquatic habitat?

ATemperature

BLight intensity

CHumidity

DTurbidity

EWave action

View Explanation & Discuss

Question 1042

waec 1988

Which of the following is not a characteristic feature of tropical rain-forest habitat?

ATrees with longer boles than those in Savannah

BFewer canopy strata than the savannah

CMany more trees and climbers than savannah

DPlenty of leaf litter on the ground

EMore diverse communities than the savannah

View Explanation & Discuss

Question 1043

waec 1988

Which of the following does not contribute to the biomass in an ecosystem?

AProducers

BFood chains

CConsumers

DMicro-organisms

ESaprophytes

View Explanation & Discuss

Question 1044

waec 1988

Which of the following is not classified as a terrestrial habitat?

AForest

BGuinea Savannah

CAfro Alpine

DLittoral zone

EDesert

View Explanation & Discuss

Question 1045

waec 1988

Autotropic nutrition may be defined in terms of food obtained

Afrom other organisms in exchange for some products.

Bby the breakdown of complex substances

Cby an organism utilizing its own store of energy

Dby synthesizing simple substances using energy from an external source

Ein a synthesized form from other living organism.

View Explanation & Discuss

Question 1046

waec 1988

The relationship between a herbivore and the bacteria which live in its caecum is known as

Aparasitism

Bsymbiosis

Ccommensalism

Dsaprophytism

Epredation

View Explanation & Discuss

Question 1047

waec 1988

In a water culture experiment a plant showed poor growth and yellowing of the leaves. These symptoms
were probably due to the absence of

Acalcium

Bphosphorus

Ciron

Dzinc

Ecopper

View Explanation & Discuss

Question 1048

waec 1988

Which of the following is not regarded as a micro-nutrient or trace element for plant growth?

APhosphorus

BZinc

CBoron

DSilicon

EMolybdenum

View Explanation & Discuss

Question 1049

waec 1988

Even though some flowering plants contain accessory pigments which give them colours they still contain
the pigment

Amelanin

Bchlorophyll

Cxanthrophyll

Dcarotene

Echlorocruorin.

View Explanation & Discuss

Question 1050

waec 1988

Which of the following does not occur during photosynthesis?

AEnergy from sunlight is absorbed

BCarbondioxide is evolved

CGlucose is synthesized

DOxygen is given

Ewater is split

View Explanation & Discuss

Question Navigator

Current

Biology Past Questions

Take a test

Custom CBT

JAMB CBT Simulator

WAEC CBT Practice 2026 Simulator

NECO CBT Practice 2026 Simulator

Past Questions

Question Navigator

MathsFaculty