Log In SignUp
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.

5,032 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10
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

5,032 questions
All JAMB WAEC NECO CUSTOM
All years 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978
Question 1 of 20 5,032 total questions
Question 2081
jamb 1991
Which of the following diseases can be prevented by innoculation?
ASyphilis
BMalaria fever
CTuberculosis
DAcquired Immune Deficiency Syndrom
View Explanation & Discuss
Question 2082
jamb 1991
Which of these is NOT an adaptive features for arboreal life?
APossession of long tail
BPossession of claws
CPossession of teeths
Dcounter shading in coat colour
View Explanation & Discuss
Question 2083
jamb 1991

Which of the following is likely to occur in a deciduous forest during the dry season?

ANew leaves are formed
BThe trees die off
CThe undergrowth increases
DThe ground becomes bare
View Explanation & Discuss
Question 2084
jamb 1991
A food web is more stable than a food chain because
Ait contains more organisms
Bit has greater energy source
Cit is not easy to destroy
Devery organism has an alternative source
View Explanation & Discuss
Question 2085
jamb 1991
The above diagram represents a competitive interaction between organism in communities I and II. Which of the following statements is CORRECT?
AThe population of I was higher than II at the beginning of the experiments
BII was wiped out from the enviroment at the end of the experiments
CThe population of II was always lower than that of
DThe population of I was lower at the end of the experiment than at the beginning
View Explanation & Discuss
Question 2086
jamb 1991
Organisms in an ecosystem are usually grouped according to their trophic level as
Acarnivores and epiphytes
Bconsumers and parasites
Cproducers and consumers
Dproducers and saprophytes
View Explanation & Discuss
Question 2087
jamb 1991
The most important factors which influence an organism's way of life in its habitat are
Athe physicals and biotic enviroment
BFood and water availability
Ctemperature, water, light and predator-prey relationship
Dcompetition for food and spaces
View Explanation & Discuss
Question 2088
jamb 1991
Which of the following characters is NOT sex-linked?
ARiver blindness
BBaldness
CHaemophilia
DColour blindness
View Explanation & Discuss
Question 2089
jamb 1991

When two heterozygotes mate, the dominant trait will appear in

Athe F1 generation only
Bthe F2 generation only
Cboth the F1 and F2 generations
Dneither the F1 nor F2 generation
View Explanation & Discuss
Question 2090
jamb 1991
The exchange of genes between homologous chromosomes is called
Atest cross
Bback cross
Ccrossing-over
Dmutation
View Explanation & Discuss
Question 2091
jamb 1991
The greatest contribution to genetic studies was made by
AThomas Morgan
BGregor Mendel
CCharles Darwin
DRobert Hooke
View Explanation & Discuss
Question 2092
jamb 1991
A dwarf plant can be stimulated to grow to normal height by the application of
Athyroxin
Bgibberellin
Cinsulin
Dkinin
View Explanation & Discuss
Question 2093
jamb 1991
Epigeal germination can be found in
Asorghum
Bmaize
Cmillet
Dgroundnut
View Explanation & Discuss
Question 2094
jamb 1991
Vegetation propagation is described as asexual reproduction because
Areproductive organs are not involved
Bnew individuals are not formed
Cmany new plants are produced
Dthere is no exchange of genetic materials
View Explanation & Discuss
Question 2095
jamb 1991

A collection of achenes formed from several carpels of a flower is

Aa multiple fruit
Ban aggregate fruit
Ca shizocarp
Da simple fruit
View Explanation & Discuss
Question 2096
jamb 1991
The function of the epididymis in mammals is the
Aexpulsion of urine
Bstorage of sperms
Ccirculation of blood
Dactivation of sperms
View Explanation & Discuss
Question 2097
jamb 1991
Which of the following vertebrae lacks a centrum?
AAtlas
BAxis
CThoracic
DLumbar
View Explanation & Discuss
Question 2098
jamb 1991
The movement of the whole organism to an external stimulus is termed
Atropism
Ba taxis
Ca nastic movement
Da phototropic movement
View Explanation & Discuss
Question 2099
jamb 1991
Which of the following is a plant excretory product?
AOil
BCytokinin
CResin
DAmino acids
View Explanation & Discuss
Question 2100
jamb 1991
Deoxygenation blood flows into the right and left lungs through the
Apulmonary vein
Bvena cava
Cpulmonary artery
Dsubclavian vein
View Explanation & Discuss
Question Navigator
Current
MathsFaculty