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Biology Past Questions

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90 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

90 questions

Question 1 of 20 90 total questions

Question 21

waec 2021

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because

Agreater amount of DNA is involved in sexual reproduction

Bgametes of parents have different genetic composition

Cgenetic materials come from parents of two different species

Dsexual reproduction is a lengthy process

View Explanation & Discuss

Question 22

waec 2021

A plant cell placed in a solution with a higher water potential will

Aexpand and then shrink

Benlarge and become turgid.

Cexpand and then burst

Ddecrease in size and become flaccid

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Question 23

waec 2021

The organism belongs to the Phylum

ARhizopoda

BCiliophora

CEuglenophyta

DRhodophyta

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Question 24

waec 2021

The level of organization of the organism is

Atissue

Bcell

Corgan

Dsystem

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Question 25

waec 2021

Which of the following statements about the structure labeled III is correct?

Asecretes digestive enzymes into the substrate

Babsorbs mineral salts from the soil

Cforms the root hairs of the organism

Ddevelops into stolon

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Question 26

waec 2021

The structure labeled II is the

Aspore

Bstolon

Ccolumella

Dsporangium

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Question 27

waec 2021

The structure labelled I is associated with

Asexual reproduction

Basexual reproduction

Cbud formation

Dgamete formation

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Question 28

waec 2021

The fruit that has the illustrated sections is a

Ahesperidium

Bcapsule

Cdrupe

Dcypsela

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Question 29

waec 2021

The sections in X and Y respectively, are

Alongitudinal and transverse

Btransverse and longitudinal

Ccross and transverse

Dtransverse and cross

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Question 30

waec 2021

Which of the following organelles is common to both plant and animal cells

ACellulose cell wall

BChlorophyll

CCell membrane

DLarge vacuole

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Question 31

jamb 2021

Blood circulation in a mammal is said to be double because?

Ait passes twice through the heart in a complete circuit

Bit moves in both arteries and veins

Cit circulates in both the heart and other organs

Dthe heart contains auricles and ventricles

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Question 32

jamb 2021

If both parents are heterozygous for a trait. the probability that an offspring will be recessive for that trait is?

A1/2

B1/4

D3/4

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Question 33

jamb 2021

The mutation theory of organic evolution was propounded by?

AGregor Mendel

BHugo de Vries

CJean Lamarck

DCharles Darwin

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Question 34

jamb 2021

The movement of part of a plant in response to external stimulus of no particular direction is?

Ataxism

Btropism

Chaptotropic movement

Dnastic movement

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Question 35

jamb 2021

The most abundant group of organisms in the animal kingdom?

AMammalia

BAves

CInsecta

DAnnelida

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Question 36

jamb 2021

The plants that grow in deserts or very dry areas are referred to as?

Ahydrophytes

Bepiphytes

Cxerophytes

Dmesophytes

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Question 37

jamb 2021

Which of the following is true in blood transfusion?

AA person of blood group AB can donate blood only to another person of blood group AB

BPersons of blood groups A and B can donate or receive blood from each other

CA person of blood group AB can receive blood only from persons of blood group A or B

DA person of blood group O can donate only to a person of blood group O

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Question 38

jamb 2021

The sequence of the one-way gaseous exchange mechanism in a fish is?

Amouth --> operculum -> gills

Bmouth -> gills > operculum

Coperculum > gills -> mouth

Dgills -> operculum --> mouth

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Question 39

jamb 2021

I. Stomata --> Spirogyra

II. Alveoli --> Earthworm

III. Malpighian tubule -> Mammal

IV. Contractile vacuole -> Protozoa

Which of the above structures is correctly matched with the organisms in which it is found?

AII

CIV

DIII

View Explanation & Discuss

Question 40

jamb 2021

Mass of a crucible = 10g,

Mass of a crucible and soil before heating =29g

Mass of a crucible and soil after heating = 18g

From the information above, determine the percentage of water in the given soil sample?

A20%

B25%

C40%

D60%

View Explanation & Discuss

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