MCQ Questions for Class 12 Biology Chapter 13 Organisms and Populations with Answers Set-A

Organisms and Populations Class 12 Biology MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 12 Biology Chapter 13 Organisms and Populations with Answers Pdf free download. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. We have Provided Organisms and Populations Class 12 Biology MCQs Questions with Answers to help students understand the concept very well.

Class 12 Biology Chapter 13 Quiz

Class 12 Biology Chapter 13 MCQ Online Test

You can refer to NCERT Solutions for Class 12 Biology Chapter 13 Organisms and Populations to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Organisms and Populations Class 12 Biology MCQ online test

Q1.	Habitat together with functions of a species constitute its:
	A.Topography
	B.Trophic level
	C.Boundary
	D.Ecological niche

Ans: Ecological niche

Q2.	The maximum growth rate occurs in :
	A.Lag phase
	B.Exponential, phase
	C.Stationary phase
	D.Senescent phase

Ans: Exponential, phase

Q3.	In which one of the following habitats, does the diurnal temperature of soil surface veiw most?
	A.Shrub land
	B.Forest
	C.Desert
	D.Grassland

Ans: Desert

Q4.	Science linking heredity with environment is:
	A.Ecology
	B.Ecophysiology
	C.Genecology
	D.Genetics

Ans: Genecology

Q5.	Submerged hydrophytes havedisseced leaves for:
	A.Decreasing surface area
	B.Increasing surface area
	C.Reducing effect pf water currents
	D.Increasing number of stomata

Ans: Reducing effect pf water currents

Q6.	Water holding capacity is maximum in:
	A.Clay
	B.Sand
	C.Silt
	D.Gravel

Ans: Clay

Q7.	Animals undergo inactive stage during winters. It is called :
	A.Acclimatisation
	B.Hibernation
	C.Aestivation
	D.Adapatation

Ans: Hibernation

Q8.	Praying mantis is a good example of:
	A.Camouflage
	B.Mullarian mimicry
	C.Warning colouration
	D.Social insect

Ans: Camouflage

Q9.	Niche overlap is:
	A.Mutualism between two species
	B.Active cooperation between two species
	C.Tjvo different parasites on same food
	D.Sharing resources between two species

Ans: Sharing resources between two species

Q10.	Animals have innate ability to escape from predation. Select the incorrect example:
	A.Colour change in Chameleon
	B.Enlargement of body by swallowing air in puffer fish
	C.Poison fangas of snakes
	D.Melaninin in moths

Ans: Poison fangas of snakes

Q11.	Ozone protects biosphere from high energetic:
	A.Infra-red rays
	B.Ultraviolet rays
	C.X-rays
	D.gamma rays

Ans: Ultraviolet rays

Q12.	Avicennia, Rhizophora andAtriplex are:
	A.Xerophytes
	B.Halophytes
	C.Hydrophytes
	D.Mesophytes

Ans: Halophytes

Q13.	Maximum amounts of humus occurs on:
	A.In lower most layer
	B.In upper layer
	C.In Middle layer
	D.Same everywhere

Ans: In upper layer

Q14.	Mycorrhiza is an example to:
	A.Decomposers
	B.Endoparasitism
	C.Symbiotic relationship
	D.Ectoparasitism

Ans: Symbiotic relationship

Q15.	Plants growing in saline soil with high salt concentration are:
	A.Xerophytes
	B.Halophytes
	C.Heliophytes
	D.Hydrophytes

Ans: Halophytes

Q16.	When births are equal to deaths, it is:
	A.Plateau stage
	B.Exponential stage
	C.Early growth stage
	D.Acceleration stage

Ans: Plateau stage

Q17.	Which plants is found in mangroove zone?
	A.Rhizophora
	B.Acacia
	C.Pinus
	D.Tectona grandis

Ans: Rhizophora

Q18.	Soil transported by air is:
	A.Alluvial
	B.Glacial
	C.Colluvial
	D.Eolian

Ans: Eolian

Q19.	The shifting of an organism temporarily from the stressful habitat to a more hospitable area and return when stressful period is over is called
	A.Suspend
	B.Migrate
	C.Hibernation
	D.Aestivation

Ans: Migrate

Q20.	Winter sleep is also called as
	A.Hibernation
	B.Suspend
	C.Migrate
	D.Aestivation

Ans: Hibernation

MCQ Questions for Class 12 Biology

NCERT Solutions for Class 12 Biology

Class 12 Biologys

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MCQ Questions for Class 12 Biology Chapter 13 Organisms and Populations with Answers

MCQ Questions for Class 12 Biology Chapter 13 Organisms and Populations with Answers Set-A

Organisms and Populations Class 12 Biology MCQs Questions with Answers

Class 12 Biology Chapter 13 Quiz

Class 12 Biology Chapter 13 MCQ Online Test

Organisms and Populations Class 12 Biology MCQ online test

MCQ Questions for Class 12 Biology

NCERT Solutions for Class 12 Biology

Class 12 Biologys

NCERT Solutions for Class 12 Biology

NCERT Solutions for Class 12 Biology

Class 12 Biology

Class 12 Biology

Class 12 Biology

Class 12 Biology

Biology : Class 12

Biology : Class 12

NCERT Biology Class 12

NCERT Biology Class 12

NCERT Bio Class 12

NCERT Bio Class 12

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12th NCERT Biology

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Class 12 Biology Chapters

MCQ QUESTIONS WITH ANSWER

NCERT SOLUTIONS FOR CLASS 12

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