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Organisms & Populations: NEET Biology Previous Year Questions

25 previous year questions from Organisms & Populations. Here are the 25 most important ones; open any question for the correct answer and a full step-by-step solution.

  1. 1.In the exponential growth equation = , e represents:
  2. 2.The impact of immigration on population density is :-
  3. 3.When does the growth rate of a population following the logistic model equal zero ? The logistic model is given as dN/dt = rN (1–N/K) :-
  4. 4.In the exponential growth equation , e represents:
  5. 5.Which of the following is not an attribute of a population?
  6. 6.The logistic population growth is expressed by the equation
  7. 7.If ‘+’ sign is assigned to beneficial interaction, ‘−’ sign to detrimental and ‘0’ sign to neutral interaction, then the population interaction represent by ‘+’ ‘−’ refer…
  8. 8.People who have migrated from the planes to an area adjoining Rohtang Pass about six months back
  9. 9.Asymptote in a logistic growth curve is obtained when :
  10. 10.If '8' Drosophila in a laboratory populationof '80' died during a week, the death rate in the population is___________individuals per Drosophila per week.
  11. 11.It is much easier for a small animal to run uphill than for animal, because:
  12. 12.Consider the following four conditions (A-D) and select the correct pair of them as adaptation to environment in desert lizards. The conditions: (A) Burrowing in soil to…
  13. 13.The process of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration is referred as :
  14. 14.Which of the following flowers only once in its life-time?
  15. 15.A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is
  16. 16.A population with finite resources shows a logistic growth curve where the correct sequence of events will be :
  17. 17.When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1-N/K):
  18. 18.If a pond has 40 lotus plants last year and through reproduction 8 new plants are added, taking the current population to 48, what will be the birth rate?
  19. 19.A biologist studied the population of eats in a barn. He found that the average natality was 250, average mortality is 240, immigration is 20 and emigration to be 30. The…
  20. 20.Which one of the following is categorized as a parasite in true sense?
  21. 21.Leaves become modified into spines in
  22. 22.In a growing population of a country
  23. 23.Amensalism can be represented as:
  24. 24.Cuscuta is an example of
  25. 25.Natality refers to

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