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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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Past Questions

5,032 questions

Question 1 of 20 5,032 total questions

Question 1151

waec 2006

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

ACassytha

BRhizopus

CDodder

DMistletoe

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Question 1152

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 1153

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 1154

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 1155

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 1156

waec 2006

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

BIII

DVI

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Question 1157

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 1158

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 1159

waec 2006

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

AUlna

BAtlas

CFemur

DPelvic girdle

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Question 1160

waec 2006

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

AThoracic

BLumbar

CCervical

DSacral

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Question 1161

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 1162

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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Question 1163

waec 2006

The central nervous system in humans is made up of the

Abrain, medulla oblongata and nerves

Bbrain, spinal cord and cranial nerves

Cbrain and spinal nerves

Dbrain and spinal cord

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Question 1164

waec 2006

Which of the following conditions is responsible for the presence of sugar in the blood of diabetic patients?

AHigh intake of carbohydrates

BLow production of insulin

CLow intake of carbohydrates

DHigh production of insulin

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Question 1165

waec 2006

An organism which maintains a constant temperature irrespective of environmental temperature fluctuation is

Aan insect

Ba mammal

Can amphibian

Da fish

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Question 1166

waec 2006

Which of the following substances is not an excretory product in mammals?

ACarbon dioxide

BWater

CFaeces

DUrea

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Question 1167

waec 2006

The ventricles of the mammalian heart have thicker
muscular walls than the auricles because the

Aventricles are larger

Bventricles receive more blood

Cventricles pump blood to longer distances

Dauricles have smaller capacity

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Question 1168

waec 2006

Which of the following organs in mammals is not excretory in function?

ALiver

BKidney

CPancreas

DLungs

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Question 1169

waec 2006

Gaseous exchange occurs through the following structures in some organisms except

Aspiracle and tracheae

Balveoli and lungs

Cstomata and lenticels

Dchloroplast and plastids

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Question 1170

waec 2006

Which of these factors does not contribute towards
the ascent of water in plants?

ARoot pressure

BCapillarity

CTranspiration pull

DTurgor pressure

View Explanation & Discuss

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