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: 12584

#XL - R Botany

Which of the following causes excessively high levels of toxic chemicals in fish-eating birds? 

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#Question id: 8916

#XL - T Zoology

What do animals as diverse as corals and monkeys have in common?

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#Question id: 1706

#XL - Q Biochemistry

Which of the following statements is the best example of a primary lymphoid organ?

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#Question id: 20046

#XL - P Chemistry

For particles having same KE., the de-broglie wavelength is

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#Question id: 20158

#XL - P Chemistry

In a set of degenerate orbitals the electrons distribute themselves to retain similar spins as far as possible. This statement is attributed to