CSIR Ecology MCQ questions Part - 5

41. Ticks on cattle or cattle ergot feed on lice is an example of –
(a) Ammensalism (b) Commensalism
(c) Proto-cooperation (d) Mutualism

42. When mimic resembles a ferocious/ poisonous/distasteful organism for eg. Viceroy
butterfly mimics monarch butterfly is –
(a) Aggressive mimicry (b) Conscious mimicry
(c) Protective mimicry (d) All of these
43. Early successful stages are tolerant of the harsh, abiotic condition in barren areas
are characterized by-
(a) Weedy a-selected (b) Weedy r-selected
(c) Weedy g-selected (d) Weedy k-selected
44. As ecosystem matures more g-selected replace g-selected. During this species richness
and total biomass increase. Under such condition productivity-
(a) Also Increase (b) remains unchanged
(c) Decreased (d) Random increase
45. Limitating factor in temperate and boreal forest is-
(a) Nutrients (b) Frost
(c) Oxygen (d) Sunlight
46. Limitating factor for plant growth in steppes and desert is-
(a) Nutrients (b) Water
(c) Oxygen (d) Sunlight
47. No succession is seen in Savannah grasslands –
(a) Regular fires (b) Paucity of Nutrients
(c) Low water availability (d) Low oxygen supply
48. Diversity between geographical areas within one overall large area-
(a) a- Diversity (b) b-diversity
(c) g- Diversity (d) m-diversity
49. The characteristic population growth curve of bacteria is-
(a) Straight (b) S shaped
(c) J shaped (d) Random
50. The maximum biodiversity will occur at-
(a) Poles (b) Deserts
(c) grasslands (d) Alpines
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