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.

57 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

57 questions

Question 1 of 20 57 total questions

Question 11

waec 2002

Which of the following terms ensures the survival of an organism in its environment?

AHibernation

BSuccession

CAdaptation

DCompetition

View Explanation & Discuss

Question 12

waec 2002

The total amount of energy entering a food chain is that which is present in the

Aconsumer

Becosystem

Cproducer

Ddecomposer

View Explanation & Discuss

Question 13

waec 2002

Which of the following measures is most likely to cause a damage to the ecosystem in the control of pests
and weeds?

AUse of ladybird insects to feed on aphids

Bintroduction of bacterium to kill larvae of butterfly

CIntroduction of Tilapia fish in ponds to feed on mosquito larvae

DSpraying insecticides to destroy cotton- stainers in a cotton-field

View Explanation & Discuss

Question 14

waec 2002

In any food chain, the first member must be a

Acarnivore

Bherbivore

Czooplankton

Dautotroph

View Explanation & Discuss

Question 15

waec 2002

The importance of practising crop-rotation in agriculture is to

Acontrol soil erosion

Bmaintain the fertility of the soil

Cimprove the nutritional value of crops

Densure growth of cash crops

View Explanation & Discuss

Question 16

waec 2002

Which of the following processes removes water from the water cycle?

ACondensation

BPerspiration

CPhotosynthesis

DTranspiration

View Explanation & Discuss

Question 17

waec 2002

Ecology simply means the study of

Athe properties of a habitat

Binterrelationship between organisms and their environment

Cseveral species of plants and animals

Dinterrelationship between plants and animals.

View Explanation & Discuss

Question 18

waec 2002

Using iodine solution, Biuret test, Benedict reagents and ethanol, respectively in testing for reducing
sugars, which of the following trends of colour changes would be observed?

ABlue → black → blue → brown → clear

BBrown → blue → brick red → clear

CBrown → violet → blue → clear

DBrown → blue → violet → milky

View Explanation & Discuss

Question 19

waec 2002

The structures labelled II are associated with

Astorage of plant nutrients

Borganic acids

Cnitrogen-fixing bacteria

Dputrefying microbes

View Explanation & Discuss

Question 20

waec 2002

The structures labelled II are

Agroundnut seeds

Bunderground root nuts

Croot Tubers

Droot nodules

View Explanation & Discuss

Question 21

waec 2002

Which of the following substances is contained in chloroplasts?

AStarch

BSugar

CGlycogen

DDextrin

View Explanation & Discuss

Question 22

waec 2002

After fertilization in the flowering plants, the zygote develops into the

Aplumule

Bradicle

Ccotyledon

Dembryo

View Explanation & Discuss

Question 23

waec 2002

In flowering plants, fertilization would occur when

Athe pollen grows downwards penetrating the style

Ba pollen grain is transferred to the stigma

Cone of the nuclei inside the pollen tube fuses with the ovum

Dthe nucleus of the pollen tube divides

View Explanation & Discuss

Question 24

waec 2002

Which of the following is not an example of entomophilous flower?

AHibiscus

BFlamboyant

CGuinea grass

DAlIamanda

View Explanation & Discuss

Question 25

waec 2002

When a person moves from a darkroom into bright light, the pupil becomes

Ared

Blarger

Cwhite

Dsmaller

View Explanation & Discuss

Question 26

waec 2002

The structure of the ear that is responsible for balancing is the

Asemi-circular carnals

Bpinna

Cauditory nerve

Dfenestra ovalis

View Explanation & Discuss

Question 27

waec 2002

If the cerebellum of a person is slightly damaged, which of the following will be impaired?

Avision

BWalking

CBreathing

DDigestion

View Explanation & Discuss

Question 28

waec 2002

In humans, which of the following pairs of hormones correspond to male and female respectively?

AOestroqen and adrenalin

BProgesterone and testosterone

CTestosterone and oestrogen

DAdrenalin and progesterone

View Explanation & Discuss

Question 29

waec 2002

Which of the following organs in humans is responsible for the removal of excess water?

AThe spleen

BThe kidney

CLarge intestine

DSmall intestine

View Explanation & Discuss

Question 30

waec 2002

Adrenalin is considered as a hormone for “fright and flight” because it

Acontrols the fluid content of the body

Bis used in protein metabolism

Cplays a role in the pH balance of the body fluids

Dprepares the body for action.

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