MIUN Free NEET Quiz Unit 1

1. Growth is ultimately limited by the carrying capacity of the environment.

2. Ecology is concerned with four levels of biological organisation-organisms, populations, communities, and biomes.

3. Ramdeo Misra was born on 26 August 1908 but did not obtain a PhD in Ecology in 1937 from Leeds University, UK, nor did he study under Prof. W. H. Pearsall, FRS.

4. In minimal communities, very few interactive linkages exist, although all are readily apparent.

5. India has more than 50,000 genetically different strains of rice, and 1,000 varieties of mango.

6. The intrinsic rate of natural increase (r) is an arbitrary measure with no bearing on a population’s growth potential.

7. The atmosphere and hydrosphere serve as reservoirs for gaseous nutrient cycles like carbon, while the Earth’s crust acts as a reservoir for sedimentary cycles like phosphorus.

8. Ramdeo Misra established teaching and research in ecology at the Department of Botany of the Banaras Hindu University, Varanasi.

9. A population growing in a habitat with limited resources show initially a lag phase, followed by phases of acceleration and deceleration and finally an asymptote when the population density reaches the carrying capacity.

10. Misra was never honoured with Fellowships from the Indian National Science Academy or the World Academy of Arts and Science, nor did he receive the Sanjay Gandhi Award in Environment and Ecology.

11. Among the various levels of biological organisation, the simplest living one is an individual organism.

12. Over 50 scholars obtained Ph. D degree under Misra’s supervision and moved on to other universities and research institutes to initiate ecology teaching and research across the country.

13. Ecology offering a holistic perspective on biology.

14. Assertions that the extinction of one species in a coevolved plant-pollinator mutualism inevitably results in the extinction of the other disregard potential ecological responses such as the adaptation of pollinators to alternative plants or the evolution of new mutualistic relationships.

15. The causes of high extinction rates at present include habitat (particularly forests) loss and fragmentation, over -exploitation, biological invasions, and co-extinctions.

16. Parasites enhance the survival, growth, and reproduction of the host, thereby increasing its population density.

17. It is our moral obligation to responsibly steward Earth’s biodiversity and ensure its preservation for future generations.

18. Among named species, over 70% are animals, with insects comprising 70% of this group.

19. Nearly 45,000 species of plants and 90,000 of animals have been recorded from India.

20. dN/dt = rN [(K-N)/K]. In this formula N = Carrying capacity.

21. The genetic variation shown by the medicinal plant Rauwolfia vomitoria growing in different Himalayan ranges is an example of ecological diversity.

22. Clarias gariepinus — indigenous catfish extinction.

23. Any plant species can survive alone.

24. In this biosphere, immense diversity (or heterogeneity) also exists at the community level.

25. More than 50 scholars completed their Ph.Ds. under Ramdeo Misra supervision, many of whom went on to spread ecology teaching and research across universities and institutes throughout the country.

26. Genetic diversity, species diversity, and ecological diversity are the most important ones among all levels of biological organisation.

27. Modern biology is a euphemism for molecular aspects of biology.

28. Verhulst-Pearl Logistic Growth cannot go beyond carrying capacity.

29. Ecological effects on populations are not reflected in their size or density and expressing population density in different ways (such as numbers, biomass, or percent cover) has no ecological significance.

30. The annual gross primary productivity of ocean is 30% (wet weight).

31. At any level of biological organisation, the ‘why-type’ questions seek the mechanism behind the process.

32. One significant explanation for the high species richness in the tropics is the region’s prolonged evolutionary history, alongside its relatively stable environment.

33. In our biosphere, immense heterogeneity exists not only at the species level.

34. The annual gross primary productivity of ocean is 55 million tons (dry weight).

35. The high species richness in the tropics is primarily due to their shorter evolutionary history and unstable environment.

36. A population is simply a group of individuals of the same species living in the same area and does not necessarily share or compete for similar resources.

37. Applying May’s global estimates in proportion to India’s diversity figures, we estimate that there are probably more than 1,00,000 plant species and more than 3,00,000 animal species yet to be discovered and described.

38. Although India has only 8.1 per cent of the world’s land area, its share of the global species diversity is an impressive 2.4 per cent.

39. Lantana — indigenous catfish extinction.

40. Intraspecific interactions arise from the interaction of populations of same species.

41. Rauwolfia vomitoria, which produces reserpine, is an example of species diversity.

42. The ecological impacts of various factors on a population are typically reflected in its size, or population density, which can be expressed in multiple ways (e.g., numerical count, biomass, percentage cover) depending on the species.

43. The human liver fluke is a platyhelminth parasite.

44. The annual gross primary productivity of terrestrial is 115 million tons (wet weight).

45. Of particular importance is the diversity at genetic, species and ecosystem levels, and conservation efforts are aimed at protecting diversity at all these levels.

46. The annual gross primary productivity of ocean is 70% (dry weight).

47. Predation plays a crucial role in facilitating trophic energy transfer, and certain predators contribute to regulating the populations of their prey.

48. The malarial parasite needs a vector (mosquito) to spread to other humans.

49. As a branch of biology, Ecology is the study of the relationships of living organisms with the abiotic (physico-chemical factors) and biotic components (other species) of their environment.

50. Among the various levels of biological organisation, the simplest living one is not the ecosystem.