Ecology MCQ: MCQ Test (25 questions)

Question 1 of 25

Ecosystem is-

AAlways open
BAlways closed
CBoth open closed depending upon community
DBolth open and closed depending upon biomass

Question 2 of 25

We get solar energy from-

AMoon
BSea
CSun
DAir

Question 3 of 25

Study of inter relationship between living organism and their environment is called-

APlant Geography
BEcology
CPlant social science
DEcosystem

Question 4 of 25

Abiotic component of our environment-

APlants
BAnimal
CBoth a and b
DAir

Question 5 of 25

Which is the miost stable ecosystem ?

ADesert
BOcean
CMountain
DForest

Question 6 of 25

Ina ecosystem the largest number is that of-

APrimary producer
BPrimary consumer
CSecondary consumer
DDecomposer

Question 7 of 25

Centre for Ecological Sciences is situated at-

ANew Delhi
BAllahabad
CKarnal
DBengaluru

Question 8 of 25

Epiphytes are are plant which depent on other plants for :

AFood
BMechanical support
CShade
DWater

Question 9 of 25

Which of the following is most stable ecosystem ?

AForest
BGrass land
CDesert
DSea

Question 10 of 25

Vultures which used to be very common in Indian country-side some years ago are rarely seen nowadays.nThis is attributed to-

AThe destruction of their nesting sites by new invasive species
BA drug used by cattle owners for treating their diseased cattle
CScarcity of food available to them
DA widespread and fatal disease among them

Question 11 of 25

The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural.nWhich one of the following is supporting service

AProduction of food and water
BControl of climate and disease
CNutrient cycling and crop pollination
DMaintenance of diversity

Question 12 of 25

Flow of energy declines as it is passes from lower to higher trophic level. This is explained by-

AFirst law of thermodynamics
BSecond law of thermodynamics
CNewton's second law
DNewton's third law

Question 13 of 25

The term ecology is first given by-

ARobbert brown
BAristotle
CKhurana
DReiter

Question 14 of 25

In biological terms,…….is a relationship between two organisms in which one organism benefits and the other is unaffected.

AParasitism
BCommensalism
CAmensalism
DMutualism

Question 15 of 25

What is the other name of Sahyadri Range ?

ALesser Himalayas
BShivaliks
CWestern Ghats
DEastern Ghats

Question 16 of 25

Reduced leaves and sunken stomata are the main feature of-

AEpiphytes
BHydrophytes
CXerophytes
DMesophytes

Question 17 of 25

Phytotron is a facility to-

AGrow plants
Bunder disease free condition
CGrow plant under controlled condition
DInduced mutations

Question 18 of 25

The importance of ecosystem lies is-

ACycling of material
BFlow of energy
CBoth A & B
DIts biomass

Question 19 of 25

Largest ecosystem of world is-

AGrass land
BLake
CSea
DForest

Question 20 of 25

Plant and animal living in a particular area constitute-

AFlora and Fauna
BCommunity
CEcosystem
DEcology

Question 21 of 25

The term ecosystem is first given by-

AReiter
BAristotle
CTansley
DHaeckel

Question 22 of 25

In a food chain energy transfer-

AFrom river to earth
BLower lattitude to higher lattitude
CFrom one organism to other organism
DNone of these

Question 23 of 25

Hydrophytes are-

AAnimal found in sea
BAquatic plant
CA plant disease
DA root less plant

Question 24 of 25

No trees are found in Tundra biome near polar region of northern hemisphere. This is due to-

ASnowfall inhibits plant respiration
BFrozen ice beneath the surface soil restricts root growth
CLess wind movement and inadequate sun light
DLow temperature which restricts development of reproductive organs.

Question 25 of 25

What is parasitism ?

AAssociation necessary for survival of both partners
BAssociation in which one species is benefitted and causes harm to another species
CAssociation in which one species is benefitted and another is unaffected
DNone of these