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 - 2
Question 1:
Submerged hydrophytes havedisseced leaves for:
(a) Decreasing surface area
(b) Increasing surface area
(c) Reducing effect pf water currents
(d) Increasing number of stomata
Correct Answer – (C)
Question 2:
In which one of the following habitats, does the diurnal temperature of soil surface view most?
(a) Shrub land
(b) Forest
(c) Desert
(d) Grassland
Correct Answer – (C)
Question 3:
Habitat together with functions of a species constitute its:
(a) Topography
(b) Trophic level
(c) Boundary
(d) Ecological niche
Correct Answer – (D)
Question 4:
The size of the population tells us a lot about its status in the
(a) Environment
(b) Sex-ratio
(c) Age pyramid
(d) Habitat
Correct Answer – (D)
Question 5:
The number of birth during a given period in the population that are added to the initial density is referred to
(a) Natality
(b) Mortality
(c) Sex-ratio
(d) None of the above
Correct Answer – (A)
MCQ Questions Class 12 Organisms and Populations With Answers
Question 6:
Science linking heredity with environment is:
(a) Ecology
(b) Ecophysiology
(c) Genecology
(d) Genetics
Correct Answer – (C)
Question 7:
The maximum growth rate occurs in :
(a) Lag phase
(b) Exponential, phase
(c) Stationary phase
(d) Senescent phase
Correct Answer – (B)
Question 8:
For human population, the age pyramids generally show age distribution of
(a) Only males
(b) Only females
(c) Of males and females
(d) None of the above
Correct Answer – (C)
Question 9:
The number of deaths in the population during a given period is referred to
(a) Natality
(b) Mortality
(c) Sex-ratio
(d) None of the above
Correct Answer – (B)
Question 10:
Parasites that live inside the host body at different sities are called
(a) Ecto parasites
(b) Endo parasites
(c) Brood parasitism
(d) None of the above
Correct Answer – (B)
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