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Question

Consider the following statement (A)-(D) and fill in the blanks.
(A) Bears go into ..........(1)....... during winter to .......(2).. cold weather.
(B) A conical age pyramid with a broad base represents .......(3).......... human population.
(C) A wasp pollinating a fig flower is an example of ........(4).........
(D) An area with high levels of species richness is known as ...........(5)..........
Which one of the following options, give the correct matching sets from (1) to (5) in the statements ?

A
(1) aestivation, (2) escape, (3) stable, (4) mutualism
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B
(1) hibernation, (2) escape, (3) expanding, (5) hot spot
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C
(3) decreasing, (4) commensalism, (5) endemic area
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D
(3) expanding, (4) commensalism, (5) biodiversity park
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Solution

The correct option is B (1) hibernation, (2) escape, (3) expanding, (5) hot spot
  • Hibernation is a mechanism used by many mammals to escape cold weather and food shortage over the winter.
  • They can go for months without food.
  • If the pyramid is wide at the base, which means there are a large proportion of young people in the country. It tapers very quickly as we go up into the older age groups, and is narrow at the top.
  • This shows that a very small proportion of people are elderly.
  • Fig wasps or parasitic wasps belong to several groups of the superfamily chalcidoidea.
  • Biodiversity hotspots are geographic areas, that contain high levels of species diversity but are threatened with extinction.
    Hence, the correct answer is B.

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