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Class XII Biology Organisms and Populations 2
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Question 1
Stratification is more common in which of the following?
Question 2
A desert lizard (an ectotherm) and a mouse (an endotherm) are placed inside a chamber at 15 and their body temperatures [T(L) for the lizard and T(M) for the mouse] and metabolic rates [M(L) for the lizard and M(M) for the mouse] are monitored. Which one of the following is correct?
Question 3
Which one of the following is a wrong statement?
Question 4
Natality refers to
Question 5
Organisms which are restricted to a narrow range of temperature are-
Question 6
Vital index of a population is determined by
Question 7
Insects constitute the largest animal group on earth. About 25-30% of the insect species are known to be herbivores. In spite of such huge herbivore pressure, globally, green plants have persisted. One possible reason for this persistence is:
Question 8
Association of cattle egret and grazing cattle represents which type of relationship-
Question 9
One of the important consequences of geographical isolation is:
Question 10
Population density means
Question 11
When births are equals to deaths, it is called
Question 12
Energy storage at consumer level is called
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Aug 21NEET & AIIMS