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: 11054

#Section 2: Evolution

In red grouse populations on the grasslands, many males do not acquire territories. Which of the following is least likely to be a valid hypothesis about these male grouse?

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#Question id: 8841

#Section 2: Evolution

Adaptive radiations can be a direct consequence of four of the following five factors. Select the exception.

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#Question id: 3324

#Section 2: Evolution

If only 20 males and 20 female grizzlies exist today, but only 10 of the males and 6 female breed, what are effective population size?

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#Question id: 4953

#Section 2: Evolution

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which graph below, if the results were produced abiotically, would have the greatest promise for revealing important information about the origin or Earthʹs first genetic system?

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#Question id: 16887

#Section 3: Mathematics and Quantitative Ecology

The confidence level for a confidence interval for a mean is