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.
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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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