Organisms and Populations Class 12 MCQs Questions with Answers

1. In a population, unrestricted reproductive capacity is called

2. The interaction where one species is benefitted and the other is neither benefitted nor harmed is called

3. Niche overlap indicates

4. Plants growing in saline soil with high salt concentration are:

5. Water holding capacity is maximum in:

6. In which one of the following habitats, does the diurnal temperature of soil surface veiw most?

7. Competitive exclusion principle stating that inferior species is eliminated eventually after prolonged competition was given by

8. Which of the following forest plants controls the light conditions at the ground?

9. Autecology is the

10. In a population, unrestricted reproductive capacity is called

11. Both the species benefit in

12. The rate of individuals born per 1,000 individuals per year is called

13. The population growth curve is sigmoid if the growth pattern is

14. Ozone protects biosphere from high energetic:

15. Niche overlap is:

16. Which of the following is not an example of prey-predator relationship ?

17. The number of birth during a given period in the population that are added to the initial density is referred to

18. Winter sleep is also called as

19. The size of the population tells us a lot about its status in the

20. Why you never see cattle or goats browsing on weed Calotropis ?