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.

2,572 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10
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Past Questions

2,572 questions
Question 1 of 20 2,572 total questions
Question 721
jamb 2001

The distribution of plants in a rain forest is governed mainly by

Avegetation
Bsoil types
Camount of sunlight
Drainfall pattern
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Question 722
jamb 2001

The hygrometer is used for measuring

Arelative humudity
Bspecific gravity
Crainfall
Dsalinity
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Question 723
jamb 2001

A freshwater pond may contain

Atadpole, water boatman, leeches and crab
Bwater beetle, shrimps, water snail and water bug
Cwater lily, fish, water scorpion and dragon larva
Dpon skater, water lily, shark and mosquito larva
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Question 724
jamb 2001

The physical space occupied by an organism together with its functional role in community can be described as

Aenvironment
Bbiome
Cniche
Dhabitat
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Question 725
jamb 2001

The greatest influence on a stable ecosystem in nature is exerted by

Aman
Bpollution
Canimals
Drainfall
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Question 726
jamb 2001

The highest percentage of energy in an ecosystem occurs at the level of the

Asecondary consumer
Bdecomposers
Cproducers
Dprimary consumers
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Question 727
jamb 2001

The epiphytic habitat can best be described as

Aarboreal
Bestaurine
Caquatic
Dterrestrial
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Question 728
jamb 2001

The factor that least affects food shortages in sub-saharan Africa is

Aflooding
Bpests
Cmixed-cropping
Ddrought
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Question 729
jamb 2001

Carbon (IV) oxide content of the atmosphere is least affected by

Acutting down and clearing of forests
Bforest fires
Cburning of fossil fuels
Dplant and animal respiration
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Question 730
jamb 2001

The number of plants species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?

A35%
B16%
C46%
D23%
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Question 731
jamb 2001

Salts and water are absorbed in the roots and transported to leaves by

Adiffusion through the xylem tissues
Bosmosis through the phloem tissues
Cdiffusion through the phloem tissues
Dosmosis through the xylem tissues
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Question 732
jamb 2001

Blood vessel usually pass through the structure labelled

AIII
BII
CV
DIV
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Question 733
jamb 2001

The structure above represents a

Acaudal vertebra
Blumbar vertebra
Cthoracic vertebra
Dcervical vertebra
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Question 734
jamb 2001

When specimen X is mixed with few drops of iodine solution, the appearance of a blue-black colour confirms that X is

Agalactose
Bstarch
Csucrose
Dglucose
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Question 735
jamb 2001

The part labelled II is the

Afenestra ovalis
Bmiddle ear canal
Cinternal auditrory meatus
Dear ossicles
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Question 736
jamb 2001

The parts which function together to bring about hearing are labelled

AIV, V and VI
BI, II, IV and VI
CI, II, III and IV
DI, II and IV
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Question 737
jamb 2001

The veins of the leaf are formed by the

Avascular bundles
Bcambium cells
Cpalisade tissue
Dspongy mesophyll
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Question 738
jamb 2001

The transportation of oxygen and carbon (IV) oxide in mammals is carried out by

Aleucocytes
Bthrombocytes
Cphagocytes
Derythrocytes
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Question 739
jamb 2001

When yeast respire anaerobically, it converts simple sugar to carbon (IV) oxide and

Aoxygen
Bacid
Calcohol
Dwater
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Question 740
jamb 2001

The enzyme invertase will hydrolyze sucrose to give

Amaltose and glucose
Bglycerol and fatty acid
Cglucose and fructose
Dmannose and galactose
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