Organisms and Populations Class 12 MCQs Questions with Answers

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

2. Ozone protects biosphere from high energetic:

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

4. Winter sleep is also called as

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

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

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

8. In a population, unrestricted reproductive capacity is called

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

10. Water holding capacity is maximum in:

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

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

13. Niche overlap indicates

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

15. In a population, unrestricted reproductive capacity is called

16. Niche overlap is:

17. Both the species benefit in

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

19. Autecology is the

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