Organisms and Populations Class 12 MCQs Questions with Answers

1. Autecology is the

2. In a population, unrestricted reproductive capacity is called

3. Niche overlap indicates

4. Winter sleep is also called as

5. Ozone protects biosphere from high energetic:

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

7. Water holding capacity is maximum in:

8. Both the species benefit in

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

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

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

12. In a population, unrestricted reproductive capacity is called

13. Niche overlap is:

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

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

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

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

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

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

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