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Biology Past Questions

Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

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2,099 questions

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Question 431

waec 2009

What physiological term can he used to
describe the regulation of the body
temperature of the lizard? '

AHomeostasis

BHomoithermy

CPoikilothermy

DOsmoregulation

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Question 432

waec 2009

Which of the statements below is valid?

AThe bird’s blood was always warmer than that of the lizard

BThe body temperature of the bird varied less than that of the lizard during changes in environmental temperature

CThe body temperature of the bird remained constant despite changes in environmental temperature

DThe body temperature of the lizard was always close to that of the environmental temperature

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Question 433

waec 2009

Which of the following organisms have kidney as their excretory organ?

AFishes, amphibians, birds, man.

BFishes, amphibians, annelids, insects

CFishes, reptiles, birds, tapeworms

DFishes, protozoans, amphibians, man

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Question 434

waec 2009

A group of rats placed in an air-tight box for some hours died because they

Abreathed in air containing nitrogen.

Bproduced carbon dioxide

Cran short of energy

Dused up the available oxygen

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Question 435

waec 2009

Which of the following features is not characteristic of arteries? Arteries

Apossess valves at intervals throughout their length

Bhave thick, muscular and elastic walls

Ccarry blood away from the heart

Dtransport oxygenated blood with the exception of the pulmonary artery

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Question 436

waec 2009

The reason why the flow of blood through the capillaries is very slow is

Abecause the walls of capillaries are very thin

Bto avoid high blood pressure

Cto ensure that the individual does not get dizzy

Dto allow adequate time for exchange of materials.

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Question 437

waec 2009

Which of the following structures is not a skeletal material?

AChitin

BCartilage

CBone

DMuscle

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Question 438

waec 2009

The longest bone in the body is the

Ahumerus

Bfemur

Cscapula

Dtibia

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Question 439

waec 2009

The following statements about mitotic cell division are correct except that

Ait occurs only in young cells

Bit occurs In somatic cells

Cthe chromosome number of the daughter cell is the same as that of the parent

Dthe genetic composition of the mother cell is the same as that of the daughter cell.

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Question 440

waec 2009

Two organelles directly involved in mitotic cell division are

Anucleus and mitochondrion

Bribosome and nucleus.

Ccentriole and Golgi apparatus

Dnucleus and centriole

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Question 441

waec 2009

The curvature movement of plants in response to the stimulus of water is called

Ahydrotropism

Bgeotropism

Cphototropism

Dthigmotropism

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Question 442

waec 2009

Red blood cells were found to have burst open after being placed in distilled water for an hour. This phenomenon is known as

Aplasmolysis

Bdiffusion

Chaemolysis

Dwilting

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Question 443

waec 2009

In plant cells the role of the membrane is played by the

Anucleolus

Bcell wall

Ccytoplasm

Dmitochondrion

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Question 444

waec 2009

The experiment above is used to demonstrate the process of

Atranspiration

Bwater culture

Cdiffusion

Dosmosis

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Question 445

waec 2009

After an hour, the level of water in the thistle funnel will

Arise

Bfall

Cremain the same

Ddouble

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Question 446

waec 2009

The cytoplasm of the cell is considered a very important component because it

Aregulates the amount of energy in the cell

Bsuspends all cell organelles.

Cis the outermost part of the cell

Dis solely responsible for cell division

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Question 447

waec 2009

A beaker of pond water containing few specimens of Euglena was placed in a dark room for two weeks. At the end of this period, the specimens of Euglena were still alive because they were

Aable to carry out holozoic nutrition.

Bable to carry out photosynthesis using carbon dioxide in the pond water

Cbetter adapted to life in darkness than to life in light

Dnot overcrowded

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Question 448

waec 2009

Viruses are economically important because they?

Ado not have cell structures

Bcan only reproduce inside living cells.

Ccause diseases in plants and animals

Dexist as crystals outside living cells

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Question 449

waec 2009

A group of closely related organisms capable of interbreeding to produce fertile offspring are known as members of a

Akingdom

Bclass

Cfamily

Dspecies

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Question 450

waec 2008

The order of evolution trend in plants is

ABryophyta, Thallophyta, Pteridoiphyta and Spermatophyta

BThallophyta Bryophyta Pteridoiphyta and Spermatophyta

CSpermatophyta, pteridophyta, Bryophyta and Thallophyta

DBryophyta, Pteridophyta, Spermatophyta and Thallophyta

View Explanation & Discuss

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