Which of the following could qualify as a top-down control on a grassland community? 

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#Question id: 16871

#General Aptitude

He is no other ……… my friend.

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#Question id: 10584

#Section 2: Evolution

The logistic equation above is used to describe the rate of change of a population, N, with time, t, where r is the intrinsic rate of increase and K is the carrying capacity. Which of the following statements is true for this equation?

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#Question id: 12148

#Section 2: Evolution

If asked to find the cause of regular fluctuations in a population's size not associated with seasonal environmental variation, you would probably first seek evidence for: 

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#Question id: 3296

#Section 2: Evolution

Some beetles and flies have antler-like structures on their heads, much like male deer. The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of

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#Question id: 10857

#Section 2: Evolution

Cowbirds never make nests, never incubate their eggs, and never care for their young. Instead they lay their eggs in the nests of host species, which either reject the egg or care for it and the young that hatches as their own. The cowbird is an example of a(n)