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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 1781

waec 1997

Which of the following organelles helps to remove excess water
from cells?

AMitochondrion

BRibosome

CContractile vacuole

DGolgi body

ENucleus

View Explanation & Discuss

Question 1782

waec 1997

What is the function of the part labelled II in the diagram? It

Amanufactures food

Bprotects the chloroplast

Cproduces protein

Dsuspends the nucleus

Edigests starch

View Explanation & Discuss

Question 1783

waec 1997

The part labelled I in the diagram is the

Acytoplasm

Bchloroplast

Cchlorophyll

Dnucleus

Ecell wall

View Explanation & Discuss

Question 1784

waec 1997

The structure represented in the diagram above is

Aa colony

Ba tissue

Ca filament

Da pseudopodium

Ean organ

View Explanation & Discuss

Question 1785

waec 1997

Which of the following organism possesses both plant and animal characteristics?

AAmoeba

BParamecium

CEuglene

DMucor

ENitrobacter

View Explanation & Discuss

Question 1786

jamb 1997

Water loss is regulated in plants and animals by both the

Ascales and the skin

Bscales and the hair

Cthick leaves and the feathers

Dleathery cuticle and the feathers

View Explanation & Discuss

Question 1787

jamb 1997

Long neck in giraffe is used to illustrate the theory of

Ause and disuse

Borigin of species

Corigin of life

Dnatural selection

View Explanation & Discuss

Question 1788

jamb 1997

Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because

Athe deposits have remains of organisms characteristic of when they were formed

Bdifferent strata have remains of organisms of the same kind

Conly organisms with strong parts are fossilized

Dmost animal and plant fossils bear little resemblance to present day living specimens

View Explanation & Discuss

Question 1789

jamb 1997

What combination of character should a prey develop to survive the environment of its predator?

ACamouflag, well developed limbs and effective vision

BShowy colour, big body and well developed limbs

CCamouflage, big body and effective vision

DShowy colour, well developed muscles and an acute sense of smell

View Explanation & Discuss

Question 1790

jamb 1997

Which of the following characters is NOT sex-linked?

AAlbinism

BBaldness

CHaemophilia

DColour blindness

View Explanation & Discuss

Question 1791

jamb 1997

The homozygous condition HbsHbsresults in sickle cell anaemia whereas HbAHbs has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child?

A1/2

B1/4

C1/8

Dnone

View Explanation & Discuss

Question 1792

jamb 1997

One reason for the success of Mendel's work is that he

Awas the first to carry out research work on modern genetics

Bintroduced quantitative and qualitative elements into his work

Cselected two characteristics only at a time for study

Ddrew up his laws of inheritance based on his knowledge of chromosomes

View Explanation & Discuss

Question 1793

jamb 1997

During binary fission in lower organisms, the nucleus is known to undergo

Amitosis

Bmeiosis

Cfragmentation

Dmutation

View Explanation & Discuss

Question 1794

jamb 1997

One of the most effective ways of controlling guinea worm is by

Atreating the disease

Bpublic enlightenment campaigns

Caccelerating rural developmnet

Dprovision of portable drinking water

View Explanation & Discuss

Question 1795

jamb 1997

Which is the most important pollutant of the marine environment in Nigeria?

AInsecticides

BSewage

COil

DInorganic fertilizers

View Explanation & Discuss

Question 1796

jamb 1997

In a soil sample, the relative amouunts of the different soil particles can best be determined by the process of

Afiltration

Bcentrifugation

Cprecipitation

Dsedimentation

View Explanation & Discuss

Question 1797

jamb 1997

After a heavy rainfall and the formation of a large pond, the most likely sequence of changes in the vegetation of the pond is

AEuglena → water lily → Spirogyra → grass

Bwater lily → Spirogyra →grass → Euglena

CSpirogyra → Euglena → grass → water lily

DEuglena → Spirogyra → water lily → grass

View Explanation & Discuss

Question 1798

jamb 1997

The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has

Alower rainfall and shorter grasses

Bless grasses and scattered trees

Cmore rainfall and taller grasses

Dless arboreal and burrowing animals

View Explanation & Discuss

Question 1799

jamb 1997

Adaptive features of plants to desert conditions include?

Athick barks, succulent stems and sunken stomata

Bthin barks, succulent stems and sunken stomata

Cthin barks, air floats on stems and sunken stomata

Dair spaces in tissues, adventitious roots and thick barks

View Explanation & Discuss

Question 1800

jamb 1997

Toads and lizards in an ecosystem depend on a limited quantity of food. This is an example of

Aparasitism

Bintraspecific competition

Cpredation

Dinterspecific competition

View Explanation & Discuss

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