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Biology Past Questions

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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 551

jamb 2008

In an experiment to determine the percentage of air in a soil sample, the following readings were recorded:

volume of water in measuring cylinder = 500 cm3

volume of soil added to water = 350 cm3

volume of water and soil after stirring = 800 cm3

the percentage of air in the soil sample is

A6.25%

B10.36%

C14.28%

D43.28%

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Question 552

jamb 2008

An ecological factor that will have the most limiting effects on the abundance of phytoplankton in a turbid pond is

ApH

Boxygen

Clight

Dtemperature

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Question 553

jamb 2008

Stomata of some plants are sunken and protected by hairs. These are features of

Amesophytes

Bepiphytes

Chydrophytes

Dxerophytes

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Question 554

jamb 2008

The main ecological problem facing intertidal organisms is

Adesiccation

Bfloatation

Csalinity

Dhumidity

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Question 555

jamb 2008

In a typical freshwater habitat, the edge of the stream or pond constitutes the

Atidal zone

Bintertidal zone

Clittoral zone

Deuphotic zone

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Question 556

jamb 2008

Which of the following associations is an example of mutualism

Ahydra viridis and zoochlorellae

Bhuman and lice

Cshark and remora fish

Dbread and rhizopus stolonifer

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Question 557

jamb 2008

The major consequences of bush burning in an ecosystem is

Athe loss of water

Bthe loss of biological diversity

Ca decrease in animal population

Dan increase in soil fertility

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Question 558

jamb 2008

The transmission of impulses along a nerve fibre is characterized by

Ahormonal and temperature changes

Belectrical and ionic changes

Chormonal and changes

Delectrostatic changes

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Question 559

jamb 2008

During ovulation, an egg is released from the

Acorpus luteum

Bovarian funnel

Cgraafian follicle

Dfallopian tube

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Question 560

jamb 2008

A plant parenchyma cell also acts as a supporting tissue when it

Abecomes flaccid

Bcontains crystals

Cbecomes turgid

Dis pigmented

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Question 561

jamb 2008

In the mammalian kidney, the Bowman''s capsules is located in the

Aureter

Bpelvis

Ccortex

Dmedulla

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Question 562

jamb 2008

Exhaled air differs from inhaled air in that it

Aless amount of carbon(IV) oxide

Bis usually lower in temperature

Coften has more oxygen

Dusually has more water vapour

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Question 563

jamb 2008

What will happen when two equal-sized pieces of unripe pawpaw labeled X and Y are dropped into equal volumes of concentrated salt solution and distilled water respectively?

Apawpaw X will become turgid

Bboth will increase in size

Cpawpaw Y will become turgid

Dboth will decrease in size

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Question 564

jamb 2008

In the alimentary system of a bird, the function of teeth is carried out by the

Acrop

Bbeak

Cgizzard

Dtongue

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Question 565

jamb 2008

insectivorous plants traps and kill their prey to derive

Aphosphorous

Bcalcium

Cnitrogen

Dzinc

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Question 566

jamb 2008

The order of passage of food in the digestive system is?

Aileum → caecum → large intestine → rectum

Bileum → colon → caecum →rectum

Clarge intestine →ileum → caecum →rectum

Dcolon → caecum → ileum →rectum

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Question 567

jamb 2008

In a dicotyledonous stem, the zone between the epidermis and the pericycle is the

Acortex

Bstele

Cxylem

Dploem

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Question 568

jamb 2008

The most important characteristic that makes reptiles to conquer terrestrial habitats is the possession of

Along tail

Bscaly skin

Csharp claw

Damniotic egg

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Question 569

jamb 2008

The beak of a duck is structurally adapted for

Ascooping and sieving food

Bcatching and grasping food

Cpicking and cracking food

Dboring and sucking food

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Question 570

jamb 2008

Which of the following is used mainly for balancing in fish?

Athe caudal fin

Bthe pectoral fin

Cthe anal fin

Dthe dorsal fin

View Explanation & Discuss

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