Organisms and Populations Class 12 MCQs Questions with Answers

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

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

3. Ozone protects biosphere from high energetic:

4. Niche overlap indicates

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

6. Niche overlap is:

7. In a population, unrestricted reproductive capacity is called

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

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

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

11. Winter sleep is also called as

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

13. In a population, unrestricted reproductive capacity is called

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

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

16. Both the species benefit in

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

18. Autecology is the

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

20. Water holding capacity is maximum in: