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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 201

waec 2017

Assuming that A is the gene for normal skin color and is dominant, while a is the gene for albinism and its recessive, what is the likely genotype of the couple which had 50% normal and 50% albino offspring?

AAA, aa

BAa, aa

CAA, Aa

DAa, Aa

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Question 202

waec 2017

An apple plant can produce sexually and asexually and it has 40 chromosomes in its leaf cells. How many chromosomes would be in each gamete and somatic cell?

A20 chromosomes in the gametes and 10 in the somatic cells

B40 chromosomes in the gametes and 20 in the somatic cells

C20 chromosomes in the gametes and 40 in the somatic cells

D40 chromosomes in the gametes and 40 in the somatic cells

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Question 203

waec 2017

Which of the following characters is not a morphological variation?

Ashape of the nose

Bcolour of skin

Ccolour of hair

Dtongue rolling

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Question 204

waec 2017

The type of variation illustrated above is

Acontinuous variation

Bdiscontinuous variation

Cmorphological variation

Denvironmental variation

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Question 205

waec 2017

Which of the following resources cannot be renewed?

AAir

BPetroleum

CFood crop

DSoil

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Question 206

waec 2017

Which of the following practices is not used in conserving water?

AAfforestation

BDamming

CDeforestation

DReforestation

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Question 207

waec 2017

The establishment of game reserves and parks is a method of

Aconserving natural resources

Bcultivating game

Ccontrolling pollution

Dcultural awareness

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Question 208

waec 2017

Which of the following pairs of organisms is in a mutualistic relationship?

AHydra and Sea anemone

BHermit crab and Sea anemone

CDodder plant and Cocoa plant

DMistletoe and Kolanut

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Question 209

waec 2017

Which of the following materials is not easily biodegradable?

APolythene bag

BCotton bag

CHides and Skin bag

DPaper bag

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Question 210

waec 2017

Which of the following statements is not associated with pyramids of energy?

AEfficiency of energy transfer between trophic levels can be studied

BComparisons of pyramids for different ecosystems can be made

CMore accurate comparisons of trophic levels

DRepresentation of numbers of organisms at different trophic levels

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Question 211

waec 2017

Which of the following pyramids gives the most accurate picture of the relationships between at the various trophic levels in a food chain? A pyramid of

Anumbers

Benergy

Cbiomass

Dsize

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Question 212

waec 2017

Which of the following groups of organisms do not have members that can be called autotrophs?

AProtists

BMosses

CChlorophyta

DFungi

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Question 213

waec 2017

Soil permeability refers to

Ahow easily water passes through the soil

Bthe proportion of air in the soil

Cthe proportion of water the soil holds

Dhow well water rises up the soil

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Question 214

waec 2017

Which of the following ecological factors will result in food shortage?

ADrought

BLow rate of reproduction

CEmigration

DTopography

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Question 215

waec 2017

The natural dwelling place of an organism is called its

Aecological niche

Bhabitat

Cpopulation

Denvironment

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Question 216

waec 2017

A population which exceeds its carrying capacity and then collapses is represented graphically by a

Abell-shaped curve

Blinear curve

Csigmoid curve

Dskewed curve

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Question 217

waec 2017

A good site for secondary succession would be

Aa sand dune

Ba bare rock

Ca land that has just had forest fire

Da stretch of barren land

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Question 218

waec 2017

The number of individuals that the environment can support over a long period of time is its

Agrowth rate

Btotal capacity

Cpopulation capacity

Dcarrying capacity

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Question 219

waec 2017

The teeth which are absent in the young of the organism whose dentition is shown above is labelled

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Question 220

waec 2017

The diagrams below show the dentition of an organism. The function of the teeth labelled X is for

Abiting and grasping

Bchewing and grinding

Ctearing and grasping

Dchewing and tearing

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