MIUN Free NEET Quiz Unit 1

1. The annual net primary productivity of ocean is 70% (wet weight). 

2. In minimal communities, many interactive linkages exist, although all may not be readily apparent.

3. India, home to approximately 45,000 plant species and twice as many animal species, is one of the 12 mega-diverse countries globally.

4. The human liver fluke is not a platyhelminth parasite.

5. Population growth is determined solely by external factors and is not influenced by resource availability or environmental conditions.

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

7. An ecosystem can be visualised as a functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment.

8. 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.

9. Species richness is not influenced by the area of a region, and the species-area relationship does not follow any particular pattern.

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

11. Among the various levels of biological organisation, the simplest living one is ecosystem.

12. Carrot grass — Parthenium.

13. Reservoirs for nutrient cycles, such as the atmosphere and Earth’s crust, do not accurately represent the complexities of nutrient dynamics within ecosystems.

14. There are more than 28,000 species of fish species living on the earth.

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

16. Carrot grass — African catfish.

17. Important explanations for the species richness of the tropics is tropics had more evolutionary time. Important explanations for the species richness of the tropics is tropics provide a relatively constant environment.

18. In nature, a given habitat has enough resources to support a maximum possible number, beyond which no further growth is possible.

19. No population of any species in nature has at its disposal limited resources to not permit exponential growth.

20. Misra was honoured with the Fellowships of the Indian National Science Academy and World Academy of Arts and Science, and the prestigious Sanjay Gandhi Award in Environment and Ecology.

21. Organisms of different trophic levels are indeed interconnected through food or energy relationships, forming complex food webs within ecosystems.

22. Resources for growth for most animal populations are finite and become limiting sooner or later.

23. Decomposition indeed involves processes such as fragmentation of detritus, leaching, and catabolism, contributing to the recycling of organic matter within ecosystems.

24. Decomposition processes do not convert detritus into carbon dioxide, water, and inorganic nutrients, as the breakdown of organic matter involves numerous biochemical pathways and intermediates.

25. India is one of the 12 mega diversity countries in the world. 

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

27. The human liver fluke is not a helminth parasite.

28. Biodiversity conservation is only ex situ, with no in situ efforts being made.

29. Earth’s fossil history reveals the incidence of mass extinctions in the past, but the present rates of extinction, largely attributed to human activities, are 100 to 1000 times higher.

30. It is obvious that in nature, animals, plants, and microbes do not and cannot live in isolation but interact in various ways to form a biological community.

31. The annual net primary productivity of the whole biosphere is approximately 170 billion tons (wet weight) of organic matter.

32. When resources are unlimited, population growth tends to be exponential, but as resources become increasingly scarce, growth transitions to a logistic pattern.

33. 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.

34. The annual net primary productivity of the whole biosphere is approximately 1700 billion tons (dry weight) of organic matter.

35. Parasites enhance the reproductive success of the host.

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

37. In parasitism only parasite benefits and the interaction is detrimental to the prey.

38. Many ecologists regard the entire biosphere as a global ecosystem, as a composite of all local ecosystems on Earth.

39. No population of any species in nature has at its disposal unlimited resources to permit exponential growth.

40. Claims that the recent illegal introduction of the African catfish Clarias gariepinus for aquaculture poses a significant threat to indigenous catfish species lack comprehensive evidence and may overlook potential ecological adjustments or management strategies.

41. In parasitism, only the parasite benefits while the host is harmed by the interaction.

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

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

44. A population refers to a collection of individuals of the same species that share or compete for similar resources within a defined geographic area.

45. The annual net primary productivity of terrestrial is 30% (wet weight).

46. 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.

47. All plant require pollinators.

48. Species diversity across Earth displays non-uniform distribution, exhibiting intriguing patterns.

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

50. Nearly 700 species have become extinct in recent times, and over 15,500 species (with more than 650 from India) currently face the looming threat of extinction.