Ecology MCQ: MCQ Test (50 questions)

Question 1 of 50

What is farming along with animal husbandry called ?

AMixed farming
BMixed agriculture
CDairy farming
DTruck farming

Question 2 of 50

Which of the following constitute a food-chain ?

AGrass, wheat and mango
BGrass, goat and human
CGoat, cow and elephant
DGrass. Fish and goatn(e) None of the above

Question 3 of 50

The ratio of forest area needed for ecologycal balance in India-

A11.1%
B22.2%
C33.3%
D44.4%

Question 4 of 50

Soil erosion can be controled by-

ABy grazing more and more
BBy removal of plant
CBy afforestation
DBy increased population

Question 5 of 50

The resources which are obtained from biosphere and have life are :

ARenewable resources
BPotential biosphere
CBiotic resources
DAbiotic resources

Question 6 of 50

In a food chain man is-

AProducer
BOnly primary consumer
COnly secondary consumer
DPrimary as well as secondary consumer

Question 7 of 50

We get solar energy from-

AMoon
BSea
CSun
DAir

Question 8 of 50

Largest ecosystem of world is-

AGrass land
BLake
CSea
DForest

Question 9 of 50

Long roots system are found in xerophytes, because-

AIt give mechanical support to plant
BTo absorb water situated deep inside earth
CHigh temperature of soil cause growth in root
DHow temperature during night cause growth on root

Question 10 of 50

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 11 of 50

Hydrophonics is related to-

AGrowth of plant without soil
BGrowth of plant without water
CConservation of water
DRelation of sound with water

Question 12 of 50

Plant and animal living in a particular area constitute-

AFlora and Fauna
BCommunity
CEcosystem
DEcology

Question 13 of 50

Which type of forests majorly comprises of lichens and mosses ?

ATaiga forests
BTundra forests
CTemperate mixed forests
DTropical ever green forests

Question 14 of 50

If tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because-

AThe soil of rain forest is deficient in nutrients
BPropagules of the trees in a rain forest have poor viability
CExotic species invade the fertile soil of rain forest
DThe rain forest species are slow growing

Question 15 of 50

An association of individuals of different species living in the same habitat and having functional interactions is :

APopulation
BEcological niche
CBIotic community
DEcosystem

Question 16 of 50

Flood can be cheaked out-

ABy making slope
BBy cutting forest
CBy marking dam and planting the tree
DNone of these

Question 17 of 50

an artificial ecosystem is represented by-

APisciculture tank
BAgricultural land
CZoo
DAquarium

Question 18 of 50

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 19 of 50

Main source of energy in a ecosystem is-

ASun light
BStored sugar in a plant
CHeat released during fermentation
DHeat released during respiration

Question 20 of 50

10% law of energy transfer in food chain was given by-

ALindemann
BStanley
CTansley
DWeismann

Question 21 of 50

Which of the following are examples of carnivorous plants ?

ASundew Venus fly trap, Pitcher plant
BCuscuta, Rafflesia, Mistletoe
CSandalwood tree, Broom rape, Pitcher plant
DCuscuta, Bladderwort, Mistletoe

Question 22 of 50

The term ecosystem is first given by-

AReiter
BAristotle
CTansley
DHaeckel

Question 23 of 50

Which one of the following is the correct sequence of a food chain ?

ADiatoms-Crustaceans-Herrings
BCrustaceans-Diatoms-Herrings
CDiatoms-Herrings-Crustaceans
DCrustaceans-Herrings-Diatoms

Question 24 of 50

Crop sown soon after the onset of south- wst monsoon in India is called-

ARabi
BKharif
CRainfed
DDry farming

Question 25 of 50

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 26 of 50

Epiphytes are are plant which depent on other plants for :

AFood
BMechanical support
CShade
DWater

Question 27 of 50

Amount of energy transferred from one trophic level to next is-

A1.5%
B10%
C15%
D20%

Question 28 of 50

The Himalayan Range is very rich in species diversity.nWhich one among the following is the most appropriate reason for this phenomenon ?

AIt has a high rainfall that supports luxuriant vegetative growth
BIt is a confluence of different biogeographical bioms
CExotic and invasive species have been introduced in this region
DIt has less human interference

Question 29 of 50

Eco-mark is given to an Indian product which is :

ARich in protein
BEnvironment friendly
CEconomically viable
DPure and unadulterated

Question 30 of 50

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

AParasitism
BCommensalism
CAmensalism
DMutualism

Question 31 of 50

The importance of ecosystem lies is-

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

Question 32 of 50

Most of the desert plant bloom during night because-

ATheir blooming is controlled by low templerature
BThey are sensitive to the phase of moon
CThe desert insects eat away flower during day time
DThe desert insects are active during night time

Question 33 of 50

Pyramid of energy in a ecosystem is-

AAlways inverted
BAlways upright
CSpindle shape
DBoth upright and inverted depending upon ecosystem

Question 34 of 50

Which one of the following organisms is likely to show the highest concentration of DDT, one it has been introduce into the ecosystem-

AGrasshopper
BToad
CSnake
DCattle

Question 35 of 50

Study of inter-relationships between an entire community and its environment is-

AAutecology
BResource ecology
CSpecies ecology
DSynecology

Question 36 of 50

Phytotron is a facility to-

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

Question 37 of 50

Which of the following is most stable ecosystem ?

AForest
BGrass land
CDesert
DSea

Question 38 of 50

Which is the miost stable ecosystem ?

ADesert
BOcean
CMountain
DForest

Question 39 of 50

Van Mahotsav is associated with-

AProtection of plant
BPlanting tree
CIncrease in crop
DCutting trees

Question 40 of 50

Which one of following is a xerophytic plant ?

AMustard
BAmerbel
CKaril
DNeem

Question 41 of 50

What is the other name of Sahyadri Range ?

ALesser Himalayas
BShivaliks
CWestern Ghats
DEastern Ghats

Question 42 of 50

Two components of ecosystem are-

AHerb and shurb
BAbiotic and biotic
CFrog and human
DPlant and animal

Question 43 of 50

When we eat the flesh of goat we are-

APrimary consumer
BSecondary consumer
CTertiary consumer
DNone

Question 44 of 50

An example of false fruit is-

AApple
BGuava
CMango
DTomato

Question 45 of 50

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 46 of 50

Centre for Ecological Sciences is situated at-

ANew Delhi
BAllahabad
CKarnal
DBengaluru

Question 47 of 50

The term ecology is first given by-

ARobbert brown
BAristotle
CKhurana
DReiter

Question 48 of 50

Reduced leaves and sunken stomata are the main feature of-

AEpiphytes
BHydrophytes
CXerophytes
DMesophytes

Question 49 of 50

Hydrophytes are-

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

Question 50 of 50

In dry regions, the leaf size of a tree becomes smaller. It is so to-

AReduce metabolism
BReduce transpiration
CMaintain natural growth
DProtect plant from animals