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.

50 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

Past Questions

50 questions
Question 1 of 20 50 total questions
Question 1
jamb 2000

Which of the following structural features are adapted for uses other than water conservation?

ASucculent stems
BScales in animals
CSpines in plants
DFeathers in birds
View Explanation & Discuss
Question 2
jamb 2000

Complex social behaviour and organization are found mostly in

Ainsects
Bbirds
Creptiles
Dmammals
View Explanation & Discuss
Question 3
jamb 2000

A certain savanna grasshopper changes colour from green during the rainy season to brown during the dry season and black after dry season bush fires. The reason for these colour changes is that the

Agrasshopper is getting older
Benvironmental temperature is changing
Cgrasshopper is avoiding predation
Dgrasshopper is frequently moulting
View Explanation & Discuss
Question 4
jamb 2000

The mutation theory of organic evolution was propounded by

AGregor Mendel
BHugo de Vries
CJean Lamarck
DCharles Darwin
View Explanation & Discuss
Question 5
jamb 2000

Example of water-borne and sex linked diseases are?

Ataeniasis and malaria
Bcholera and gonorrhoea
Ctyphoid and syphilis
Ddracunculiasis and haemophilia
View Explanation & Discuss
Question 6
jamb 2000

In a group of male Agama lizards, the one with the brightest head colour is the

Adominant
Byoungest
Coldest
Dlargest
View Explanation & Discuss
Question 7
jamb 2000

The older fossil-bearing rocks, in contrast to the more recent ones, are more likely to contain?

Aanimal rather than plant remains
Binvertebrates rather than birds
Cflowering plants rather than mosses
Dreptiles rather than fishes
View Explanation & Discuss
Question 8
jamb 2000

Blood grouping in human beings is derived from combinations of

Atwo different alleles
Bfour different alleles
Cthree different alleles
Dtwo different genes
View Explanation & Discuss
Question 9
jamb 2000

The surest way to combine the best qualities of both parents in the offspring is by

Across-breeding
Binbreeding
Cselective breeding
Dpure breeding
View Explanation & Discuss
Question 10
jamb 2000

The pollutants that contribute to the depletion of the ozone layer in the atmosphere are

Aradioactive materials
Boxides of sulphur
Coxides of carbon
Dchlorofluorocarbons
View Explanation & Discuss
Question 11
jamb 2000

A cross between an albino female and a genetically normal male will result in offspring that are

Aall albino
Ball phenotypically normal
Call genetically normal
Dhalf albino and half normal
View Explanation & Discuss
Question 12
jamb 2000

The factors that determine the distribution of vegetation zones are

Atemperature, light, rain and humidity
Blight, humidity, air and mist
Ctemperature, light, air and humidity
Dhumidity, snow, frost and dew
View Explanation & Discuss
Question 13
jamb 2000

The legs and beak of an egret resemble those of the heron because they

Aboth feed on fishes
Bare both birds
Coccupy similar niche
Doccupy the same trophic level
View Explanation & Discuss
Question 14
jamb 2000

The disaster that would have the least destructive impact on animal life and balance in nature is

Achemical pollution
Bforest fires
Coil spillage
Dgrasshopper pests
View Explanation & Discuss
Question 15
jamb 2000

In a food chain, each succeeding level in a forward direction represents

Aan increase in the number of individuals
Ba decrease in the number of individuals
Can increase in the biomass of individuals
Da gain in the total energy being transferred
View Explanation & Discuss
Question 16
jamb 2000

Which of the following is an adaptation of tropical rainforest species?

AFew stomata
BThick bark
CButtress roots
DReduced leaves
View Explanation & Discuss
Question 17
jamb 2000

Which of the following are adaptations of animals to aquatic habitats?

AGills, streamlined bodies and lateral lines
BLateral line, streamlined bodies and lungs
CGills, scaly skin and lungs
DGills, streamlined bodies and spiracles
View Explanation & Discuss
Question 18
jamb 2000

Which of the following growth activities in plants is brought about by gibberellins?

ARapid cell division
BTropic response
CCell elongation
DMain cell elongation
View Explanation & Discuss
Question 19
jamb 2000

The range at which soil essential elements concentration is recorded for optimal plant growth is marked

AIV
BIII
CII
DI
View Explanation & Discuss
Question 20
jamb 2000

The soil becomes toxic to plants when the concentration of its essential elements is in the range labelled

AIV
BIII
CII
DI
View Explanation & Discuss
Question Navigator
Current
MathsFaculty