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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.

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Past Questions

50 questions

Question 1 of 20 50 total questions

Question 1

jamb 1984

Which parts provide food for the developing chick?

A2 and 3

B4 and 5

C3 and 4

D2 and 5

E1 and 2

View Explanation & Discuss

Question 2

jamb 1984

The young chick is formed from

B3 and 4

C1, 3 and 5

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Question 3

jamb 1984

The structure above represents a quill feather. The structure labelled 'M' is the

Aquill

Brachis

Csuperior umbilicus

Dinferior umbilicus

Eaftershaft

View Explanation & Discuss

Question 4

jamb 1984

The process of soil erosion is usually from

Arill → sheet → gully

Bgully → rill → sheet

Csheet → guly → rill

Dsheet → rill → gully

Erill → gully → sheet

View Explanation & Discuss

Question 5

jamb 1984

Leaching is

AWashing away of humus from the soil surface

Breducing of soil aeration by pressure

Csoil erosion by means other than rainfall

Dloss of organic matter due to exposure to direct sunlight

Ewashing out chalk and limestone from upper layers of by heavy rains

View Explanation & Discuss

Question 6

jamb 1984

Denitrifying bacteria in nature liberate gaseous nitrogen directly from

Aammonium salts

Bsoil nitrates

Cthunderstorms

Dsoil nitrites

Eplant and animal proteins

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Question 7

jamb 1984

If a handful of soil is shaken with water and left to settle, the soil particles will settle from light to heavy particles as follows

Ahumus, clay, silt, sand, stones

Bhumus, silt, clay, sand, stones

Chumus, clay,silt, stones, sand

Dhumus, sand, silt, clay, stones

Eclay, humus, silt, sand, stones

View Explanation & Discuss

Question 8

jamb 1984

Erosion can be reduced along shape by

Aridging across slope

Bridging up slope

Cridging down slope

Dcrop rotation

Ebush fallowing system

View Explanation & Discuss

Question 9

jamb 1984

Which of the following lists of diseases, their causes and transmission is CORRECT?

ACholera, virus, severe diarrhoea, infected water

BMalaria, protozoan, high fever, contact with infected person

CSyphilis, virus, veneral disease, sexual intercourse

Dsmall pox, virus, skin with blister, close contact with infected person

ESleeping sickness, bacteria, tiredness, headache and dozing, tsetsefly bite

View Explanation & Discuss

Question 10

jamb 1984

Which of the following groups of factors is completely abiotic?

ASalinity, tide, plankton, turbidity

BTemperaure, pH, soil, insect

CWind, altitude, humidity, light

DConifers, wind, pH, rainfall

ESoil, water, bacteria, salinity

View Explanation & Discuss

Question 11

jamb 1984

Which of the following is NOT regarded as a pollutant on land or in the air?

Asmoke

Bnoise

Csulphur (IV) oxide

Dcarbon monoxide

Enitrogen

View Explanation & Discuss

Question 12

jamb 1984

An anemometer is an instrument for measuring

Arelative humidity

Baltitude

Cwind speed

Dturbidity

Esalinity

View Explanation & Discuss

Question 13

jamb 1984

Green plants are important in the ecosystem because they are

Aprimary consumers

Bproducers

Cdecomposers

Dsecondary consumers

Escavengers

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Question 14

jamb 1984

Which of the following sequences represents process of blood clothing? 1. Fibrins forms a network of threads 2. Red blood cells are caught and clot is formed 3. Fibrinogen in plasma changes into fibrin 4. Blood is exposed to air

A4, 3, 2, 1

B4, 3, 1, 2

C3, 1, 4, 2

D1, 2, 3, 4

E3, 1, 2, 4

View Explanation & Discuss

Question 15

jamb 1984

The axial skeleton of a mammal does not include the bones of the

Askull

Btail

Climbs

Dback

Eneck

View Explanation & Discuss

Question 16

jamb 1984

Heat produced in tissue respiration in plants is

Aa chemical form of energy

Bthe only form of energy

Cthe main form of energy

Da useful form of energy

Ea waste form of energy

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Question 17

jamb 1984

Normally the flow of blood is NEVER from

Aartery to arterioles

Barterioles to capillaries

Ccapillaries to venules

Darteerioles to the artery

Evenules to the vein

View Explanation & Discuss

Question 18

jamb 1984

The presence of a diastema in the jaw bone indicates that the mammal lacks the teeth suitable for

Atearing

Bchewing

Ccutting

Dchewing and tearing

Ecutting and grinding

View Explanation & Discuss

Question 19

jamb 1984

Fehling's solution will readily change colour from blue to reddish colour when it is

Amixed with sugar solution in the cold

Bwarmed or heated by itself

Cmixed with reducing sugar in the cold

Dwarmed or heated with complex solution

Ewarmed with a solution of reducing sugar

View Explanation & Discuss

Question 20

jamb 1984

Which of the following group does NOT reproduce asexually?

AMucor, Spirogyra and Paramecium

BPenicillium, Paramecium and Amoeba

CMucor, Rhizophus and Penicillium

DAmoeba, Spyrogyra and Mucor

ERhizophus, Ascaris and Amoeba

View Explanation & Discuss

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