MIUN Free NEET Quiz Unit 10

1. The malarial parasite needs a vector (mosquito) to spread to reproduce sexually.

2. The group of Fungi has more species than all the vertebrate species combined.

3. In nature populations of different species in a habitat do not live in isolation but interact in many ways.

4. Among the various levels of biological organisation, the simplest living one is not an organ.

5. Biology is presented either as botany, zoology and microbiology or as classical and modern.

6. Neutral interaction – ‘0’ sign.

7. Nile perch — indigenous catfish extinction.

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

9. The annual gross primary productivity of ocean is 115 million tons (dry weight).

10. Ecological diversity of Rauwolfia vomitoria could be understood by analysing the concentration and potency of the active reserpine produced.

11. The number of fungi species in the world is more than the combined total of the species of fishes, arthropods, reptiles, and mammals.

12. Although over 1.5 million species have been documented worldwide, there may still be nearly 6 million undiscovered and unnamed species on Earth.

13. Organisms of different trophic levels in nature are connected to each other for food or energy relationship, forming a food chain.

14. Some of the most fascinating cases of mutualism in nature are seen in plant-pollinator interactions.

15. The intrinsic rate of natural increase (r) is a measure of the inherent potential of a population to grow.

16. When resources are unlimited, the growth is usually exponential but when resources become progressively limiting, the growth pattern turns logistic.

17. Biology is often divided into fields such as botany, zoology, and microbiology, or categorized as classical and modern, with the latter typically referring to molecular biology.

18. Clarias gariepinus — Parthenium.

19. Forest, grassland, and desert are some examples of terrestrial ecosystems.

20. Earth’s rich biodiversity is insignificant for the survival of mankind.

21. Among the various levels of biological organisation, the simplest living one is macromolecules.

22. Modern biology has nothing to do with molecular biology.

23. Of the named species, > 70 per cent are animals, of which 70 per cent are insects.

24. Clarias gariepinus — African catfish.

25. In natural habitats, populations of different species do not exist in isolation but instead interact in various ways.

26. In our biosphere, immense diversity (or heterogeneity) exists not only at the species level.

27. The high species richness in the tropics is primarily due to the limited solar energy received, resulting in lower productivity.

28. The human liver fluke is not a cestode parasite.

29. The extinction of a host fish species results in the demise of its distinct assembly of parasites.

30. Conventional taxonomic methods are not suitable for identifying microbial species, and many species are simply not culturable under laboratory conditions.

31. In decomposition, complex organic compounds of detritus are indeed broken down into simpler compounds like carbon dioxide, water, and inorganic nutrients by decomposers.

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

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

34. Rate of capture of solar energy or total production of organic matter is called as GPP.

35. The annual net primary productivity of the ocean is 30% (dry weight).

36. Each ecosystem has characteristic physical structure resulting from interaction amongst abiotic and biotic components.

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

38. Ecological interactions between species are not categorized based on outcomes, and the concepts of competition, predation, parasitism, commensalism, amensalism, and mutualism have no scientific basis.

39. 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.

40. To study genetic diversity, only one species is sufficient.

41. In our biosphere, immense diversity (or heterogeneity) also exists at the species level.

42. It is widely acknowledged that communities with high diversity tend to exhibit lower variability, increased productivity, and enhanced resistance to biological invasions.

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

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

45. Eventually, the ‘fittest’ individual will survive and reproduce.

46. Species composition and stratification are the two main structural features of an ecosystem.

47. Genetic diversity of Rauwolfia vomitoria could be understood by analysing the concentration and potency of the active reserpine produced.

48. Among the various levels of biological organisation, the simplest living one is not the macromolecules.

49. If we do not accept biochemical or molecular criteria for delineating prokaryote species, then their diversity alone might run into trillions.

50. Ecosystem varies greatly in size.