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Biology Past Questions

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2,099 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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2,099 questions

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Question 511

waec 2006

Which of these factors are common to both aquatic and terrestrial habitats?

ALight, rainfall and turbidity

BLight, temperature and tide

CLight, rainfall and temperature

DRainfall, turbidity and salinity

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Question 512

waec 2006

The physical and chemical factors which affect the life of organisms in an environment are described as

Abiotic

Bedaphic

Cabiotic

Dphysiographic

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Question 513

waec 2006

The group of several populations that interact and share a habitat, form

Aa species

Ba community

Can ecotype

Da tribe

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Question 514

waec 2006

Which of the following components of an ecosystem does not contribute to the biomass of the system?

AProducers

BConsumers

CMicro-organisms

DHabitat

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Question 515

waec 2006

The first step in carrying out ecological studies in a terrestrial habitat is

Aquadrat sampling

Bmapping the area

Ccollection of organisms

Dmeasuring abiotic factors

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Question 516

waec 2006

Siphons and gills are structures in aquatic organisms used for

Agaseous exchange

Bbuoyancy

Cexcretion

Dmovement

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Question 517

waec 2006

Which of the following organisms feeds both autotrophically and heterotrophically?

AHydra

BParamecium

CMucor

DEuglena

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Question 518

waec 2006

The examples of autotrophic organisms include the following except

AEuglena

BChlamydomonas

CHydra

DSpirogyra

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Question 519

waec 2006

Which of the following organisms is not considered as a parasitic plant?

ACassytha

BRhizopus

CDodder

DMistletoe

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Question 520

waec 2006

If an enzyme works best in an acid medium, in which of the following parts of the human gut is the pH best for
enzyme activities? In the

Aileum, pH 9.0

Bstomach, pH 2.0

Cduodenum, pH 7.0

Dmouth cavity; pH 8.0

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Question 521

waec 2006

Which of the following food substances would produce a translucent mark when rubbed on a white paper?

APotato

BBeans

CMango

DGroundnut

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Question 522

waec 2006

Study the following list of deficiency symptoms in animals; use it to answer the questions below
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindness
Which of the following combination of food substances would correct the deficiency numbered II?

ATomatoes, oranges and mangoes

BYeast, liver and rice

CRed palm oil, carrot and egg yolk

DGreen vegetables, butter and meat

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Question 523

waec 2006

Which of the following vitamins would correct the deficiency numbered V?

AVitamin K

BVitamin A

CVitamin C

DVitamin B

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Question 524

waec 2006

Which of the following deficiencies is caused by lack of vitamin A

BIII

DVI

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Question 525

waec 2006

A one-seeded fruit in which the pericarp has fused with the seed coat is classified as

Aa berry

Ba caryopsis

Ca legume

Dan achene

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Question 526

waec 2006

If the mucus in the air track of mammals dry up and the hairs in the nostrils are removed

Aimpure air would be breathed into their lungs

Bthe speed of air movement into their lungs would increase

Cbreathing air into their lungs would be difficult

Dmore air would be taken into their lungs

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Question 527

waec 2006

Which of the following is not a component of the appendicular skeleton?

AUlna

BAtlas

CFemur

DPelvic girdle

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Question 528

waec 2006

Which of the following vertebrae provide articulating surfaces for the ribs?

AThoracic

BLumbar

CCervical

DSacral

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Question 529

waec 2006

Which of the following statements best describes pollination? The transfer of pollen grain from

Aanther to stigmas

Bstigmas to stamens

Cthe anther of a flower to the stigma of another flower of a different species

Danther to the ovary

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Question 530

waec 2006

The part of the ear in mammals responsible for the detection of sound is the

Autriculus

Btympanum

Ccochlea

Dsemi-circular canal

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