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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.

2,572 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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2,572 questions

Question 1 of 20 2,572 total questions

Question 671

jamb 2003

If a DNA strand has a base sequence TCA, its complementary strand must be

AATG

BTAG

CGAT

DAGT

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Question 672

jamb 2003

The pioneer organisms in ecological succession are usually the

Amosses

Blichens

Cferns

Dalgae

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Question 673

jamb 2003

Soil fertility can best be conserved by the activities of

AEarthworm

BMan

CRodent

DMicrobes

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Question 674

jamb 2003

A limited factor in a plant population near a chemical factory is likely to be

ALight

BHumidity

Cwind

DpH

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Question 675

jamb 2003

Mycorriza is an associationn between fungi and

Aprotozoans

BRoots of higher plants

CBacteria

DFilamentous algae

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Question 676

jamb 2003

The correct sequence of biomes from northern to southern Nigeria is

AGuinea savanna → sudan savanna → tropical rain forest → sahel savanna → estuarine

BEstuarine → tropical rain forest → guinea savanna → sahel savanna

CSahel savanna → tropical rain forest → estuarine → guinea savanna

DSahel savanna → sudan savanna → guinea savanna → tropical rain forest → estuarine

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Question 677

jamb 2003

The most effective method of dealing with non-biodegradable pollutant is by

ADumping

BRecycling

CIncineration

DBurying

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Question 678

jamb 2003

One example of fossil fuels is

ALimestone

BCoral

CCoal

DFirewood

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Question 679

jamb 2003

A density-dependent factor that regulates the population size of organism is

ADisease

BSudden flood

CDrought

DFire outbreak

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Question 680

jamb 2003

The most important hormone that induces the ripening of fruit is

AEthylene

BIndole acetic acid

CGibberallin

DCytokinin

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Question 681

jamb 2003

The response of plants to external stimuli in a non-directional manner is known as

ATactic movement

BPhototropism

CGeotropism

DNastic movement

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Question 682

jamb 2003

An example of a caryopsis is

AGuava

BMaize grain

CCoconut

DTomato

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Question 683

jamb 2003

Homologous pairs of chromosome separate during

ACytolysis

BCleavage

CMitosis

DMeiosis

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Question 684

jamb 2003

The point marked I is referred to as

Amyelin sheath

Bdendrites

Caxon

Dnode of Ranvier

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Question 685

jamb 2003

The structure can be found in the

ASympathetic and parasympathetic nervous systems

BPeripheral and central nervous system

CPeripheral nervous system only

DCentral nervous system only

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Question 686

jamb 2003

Metabolic production of urea is carried out in the

Aurinary bladder and kidney

BLiver

CPancreas

DKidney and malphigian tubule

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Question 687

jamb 2003

In mammalian males, the excretory and reproductive systems share the

AUreter

Bvas deferens

CUrethra

DTestes

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Question 688

jamb 2003

The best method of propagating sugarcane is by

ASeeding sowing

BLayering

CGrafting

DStem cuttings

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Question 689

jamb 2003

The part of the mammalian digestive system where absorption of nutrient takes place is the

Aileum

Bcolon

Coesophagus

Dduodenum

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Question 690

jamb 2003

Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is

AIV

BIII

DII

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