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

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

4. Autecology is the

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

6. Water holding capacity is maximum in:

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

8. Niche overlap is:

9. Niche overlap indicates

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

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

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

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

14. In a population, unrestricted reproductive capacity is called

15. Both the species benefit in

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

17. Winter sleep is also called as

18. Ozone protects biosphere from high energetic:

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

20. In a population, unrestricted reproductive capacity is called