Organisms and Populations Class 12 MCQs Questions with Answers

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

2. Autecology is the

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

4. Niche overlap indicates

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

6. In a population, unrestricted reproductive capacity is called

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

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

9. Both the species benefit in

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

11. Niche overlap is:

12. Ozone protects biosphere from high energetic:

13. Winter sleep is also called as

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

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

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

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

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

19. In a population, unrestricted reproductive capacity is called

20. Water holding capacity is maximum in: