Organisms and Populations-3

MCQ Questions Class 12 Organisms and Populations With Answers

CBSE Class 12 Organisms and Populations Multiple Choice Questions with Answers. MCQ Questions Class 12 Organisms and Populations with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT MCQ questions Class 12 Organisms and Populations with Answers to know their preparation level.

Students who are searching for NCERT MCQ Questions Class 12 Organisms and Populations with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Organisms and Populations with Answers. You can also verify your answers from the provided MCQ Class 12 Organisms and Populations with Answers. So, ace up your preparation with MCQ of Class 12 Biology Examinations.

MCQ Questions Class 12 Organisms and Populations with Answers - Set - 3

Question 1: 

Plants growing in saline soil with high salt concentration are:
(a) Xerophytes
(b) Halophytes
(c) Heliophytes
(d) Hydrophytes

Correct Answer – (B)

Question 2: 

Maximum amounts of humus occurs on:
(a) In lower most layer
(b) In upper layer
(c) In Middle layer
(d) Same everywhere

Correct Answer – (B)

Question 3: 

Ozone protects biosphere from high energetic:
(a) Infra-red rays
(b) Ultraviolet rays
(c) X-rays
(d) gamma rays

Correct Answer – (B)

Question 4: 

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

Correct Answer – (D)

Question 5: 

Animals undergo inactive stage during winters. It is called :
(a) Acclimatisation
(b) Hibernation
(c) Aestivation
(d) Adapatation

Correct Answer – (B)

MCQ Questions Class 12 Organisms and Populations With Answers

Question 6: 

Mycorrhiza is an example to:
(a) Decomposers
(b) Endoparasitism
(c) Symbiotic relationship
(d) Ectoparasitism

Correct Answer – (C)

Question 7: 

Avicennia, Rhizophora and Atriplex are:
(a) Xerophytes
(b) Halophytes
(c) Hydrophytes
(d) Mesophytes

Correct Answer – (B)

Question 8: 

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

Correct Answer – (C)

Question 9: 

Praying mantis is a good example of:
(a) Camouflage
(b) Mullarian mimicry
(c) Warning colouration
(d) Social insect

Correct Answer – (A)

Question 10: 

Water holding capacity is maximum in:
(a) Clay
(b) Sand
(c) Silt
(d) Gravel

Correct Answer – (A)
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