Organisms and Populations Class 12 MCQs Questions with Answers

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

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

3. Niche overlap is:

4. Water holding capacity is maximum in:

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

6. Niche overlap indicates

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

8. Autecology is the

9. Ozone protects biosphere from high energetic:

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

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

12. Winter sleep is also called as

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

14. In a population, unrestricted reproductive capacity is called

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

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

17. In a population, unrestricted reproductive capacity is called

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

19. Both the species benefit in

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