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Biology Past Questions

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Past Questions

50 questions

Question 1 of 20 50 total questions

Question 11

jamb 2006

Hassan and Hussain are identical twins but Hassan grows taller and fatter from Hussain. This is probably because

AHassan inherits genes for tallness and fatness from the father

BThey have dissimilar genotypes

CHussain is endowed with genes for shortness and thinness

DThey are raised in different environment

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Question 12

jamb 2006

A population that doubles in size at constant intervals is an indication of

Asigmoid growth

Bexponential growth

Cpopulation explosion

Drapid growth

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Question 13

jamb 2006

The soil type that contain nutrients which are not readily available for plants is

Aalluvial

Bclayey

Csandy

Dloamy

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Question 14

jamb 2006

Climax communities in a biotic succession are usually characterized by

Aa constant change in the appearance of the communities

Bdifferent species that are constantly changing

Ca stable composition of plant and animal species

Drapid changes in the plant and animal species

View Explanation & Discuss

Question 15

jamb 2006

Grasses recover quickly from bush fires in the savanna because of their

Aperennating organs

Brapid growth rate

Cfibrous roots

Dsucculent stems

View Explanation & Discuss

Question 16

jamb 2006

The causative agent of typhoid fever is

Asalmonella

Bentamoeba

Cescherichia

Dshigella

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Question 17

jamb 2006

An organism which exhibits extracellular digestion is

Aspirogyra

Bparamecium

Camoeba

Drhizopus

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Question 18

jamb 2006

A characteristic that best exemplifies the evolutionary advancement of mammals over other vertebrates is the

Aviviparous mode of reproduction

Bpossession of paired limbs

Cterrestrial mode of life

Dpossession of a heart

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Question 19

jamb 2006

One primitive feature of the coelenterates is the possession of

Aa dorsal mouth

Bradial symmetry

Cbilateral symmetry

Da false foot

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Question 20

jamb 2006

Which of the following vertebrates has the most simple structured heart?

Areptile

Bfish

Cmammal

Damphibian

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Question 21

jamb 2006

The evidence that supports the advancement of ferns over mosses is derived from

Acomparative anatomy

Bmolecular records

Cbiochemical similarities

Dphysiological records

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Question 22

jamb 2006

The dominant phase in the life cycle of a bryophyte is the

Agametangium

Bsporophyte

Cgametophyte

Dprothallus

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Question 23

jamb 2006

The role of the Golgi complex in an eukaryotic cell is to

Aconduct irons in and out of the cells

Btransport genetic materials out of the cell

Cprovide attachment for ribosomal granules

Dtransport organic materials in and out of the cells

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Question 24

jamb 2006

The part of the mammalian skin involved in temperature regulation is the

Asweat gland

Bhair papilla

Chair follicle

Dsebaceous gland

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Question 25

jamb 2006

The intensity of competition among animals in a given area will increase with

Aan increase in the frequency of disease outbreaks

Ban increase in population size

Ca decrease in immigration rate

Dan increase in the emigration rate

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Question 26

jamb 2006

Mendel's second law of inheritance states that

Aalleles combine randomly

Balleles segregates independently

Calleles seperate predictably

Dchromosomes segregates independently

View Explanation & Discuss

Question 27

jamb 2006

One advantage of variation in a species population is that individuals

Awith favoured traits become dominant

Beasily reach their reproductive age

Care easily recognised by mates

Dare better adapted to changes

View Explanation & Discuss

Question 28

jamb 2006

The two normal types of sex chromosomes are

AXXY and XYY

BXX and XYY

CXY and XXY

DXX and XY

View Explanation & Discuss

Question 29

jamb 2006

In the transverse of a dicot stem, the region lying between the endodermis and the vascular bundle is the

Aparenchyma

Bpericycle

Cphloem

Dhypodermis

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Question 30

jamb 2006

The mammalian vein which starts with and ends in a capillary network is the

Apulmonary vein

Bmesenteric vein

Crenal vein

Dhepatic portal vein

View Explanation & Discuss

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