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Biology Past Questions

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Past Questions

5,032 questions

Question 1 of 20 5,032 total questions

Question 1431

neco 2002

Thick succulent stems and leaves are an adaptation for conservation of water

Aprevention of heat stroke

Bprotection

Creproduction

Dsun tanning

View Explanation & Discuss

Question 1432

neco 2002

Which process best explains the raising upward and outward of the ribs during breathing?

Aaerobic respiration

Banaerobic respiration

Cexhalation

Dinhalation

Einternal respiration

View Explanation & Discuss

Question 1433

neco 2002

The pro-condition for transfusion of blood to an accident victim is

Aassess the level of blood lost

Bboil the blood before transfusion

Ccross-match the victims and donor blood groups

Dmix the blood to be donated with sulphur

Eremove the remaining blood from the accident victim before transfusing the blood

View Explanation & Discuss

Question 1434

neco 2002

Which is NOT an example of bacteria?

Abacilli

Bcocci

Cdiplococci

Dspirilli

Esporangia

View Explanation & Discuss

Question 1435

neco 2002

Which organism is a primary producer?

ACassava

Bcricket

Cgrasshopper

Dhawk

Elizard

View Explanation & Discuss

Question 1436

neco 2002

The incomplete breakdown of glucose into alcohol, carbon dioxide and energy is referred to as

Adecay

Bdigestion

Cfermentation

Doxidation

Erespiration

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Question 1437

neco 2002

Which reagent is used to test for the presence of starch in a food substance?

Aanhydrous copper (II) sulphate

BFehling’s solution

Ciodine solution

Diron(III) oxide

EMillion’s reagent

View Explanation & Discuss

Question 1438

neco 2002

Iron is mainly required by plants for_________formation.

AChlorophyll

Bglucose

Cprotein

Dnuclear

Enucleproteins

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Question 1439

neco 2002

A group of interacting populations in a particular habitat can be described as

Abiome

Bbiosphere

Ccommunity

Decosystem

Eenvironment

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Question 1440

neco 2002

Which division is NOT part of the atmosphere?

Ahydrosphere

Bmesosphere

Cstratosphere

Dthermosphere

Etroposphere

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Question 1441

neco 2002

What is NOT characteristic of fresh water habitats?

Ahigh osmotic concentration

Blow oxygen concentration

Cthey are flooded during the rainy season

Dtemperature changes daily

Ethey have limited size-and depth

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Question 1442

neco 2002

In genetics, test cross is used to

Aconfirm the number of offspring in F1

Bconfirm the number of gametes present in parents

Ctest for heterozygosity

Dtest for X and Y chromosomes

Etest for the phenotypic ratio

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Question 1443

neco 2002

A pair of genes which controls a trait is described as

Aallele

Bdominant

Chybrid

Drecessive

Evariant

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Question 1444

waec 2002

Which of the following can be considered as a direct evidence of evolution?

AClassification

BComparative anatomy

CComparative embryology

DFossil record

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Question 1445

waec 2002

The following are social insects except

Awasps

Btermites

Cbees

Dcotton stainer

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Question 1446

waec 2002

Which of the following is an adaptation by plants to reduce the rate of water loss in a dry habitat? Possession of

Aa few sunken stomata on the lower epidermis only

Blong leaf tendrils

Cleaves with serrated edges

Dstrong tap root

View Explanation & Discuss

Question 1447

waec 2002

The genes affecting the same trait and are located at the same position on the homologous chromosomes
are called

Aautosomes

Balleles

Cloci

Dchromatids

View Explanation & Discuss

Question 1448

waec 2002

A man with heterozygous genotype for blood group B marries a woman with heterozygous A, what percentage
(%) of their children would be universal donor?

A50%

B25%

C15%

D10%

View Explanation & Discuss

Question 1449

waec 2002

In humans, sex is determined by

Atwo homologous chromosomes

Ba dominant gene for maleness present in a male

Ctwo similar sex chromosomes in the male and dissimilar in the female

Dthe differences in the nature of the X and Y chromosomes in the male.

View Explanation & Discuss

Question 1450

waec 2002

The name given to a sudden change in a gene or chromosome that can be passed on to the offspring is

Ainheritance

Blinkage

Calleles

Dmutation

View Explanation & Discuss

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