Close examination of the yucca-yucca moth mutualism has shown that what appear to be coevolved traits may have been __________ that were critical to the establishment of the mutualism in the first place.

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#Question id: 12354

#Section 1: Ecology

____________ is the physical place where a species lives.

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#Question id: 12583

#Section 5: Applied Ecology & Evolution

Which of the following is caused by excessive nutrient runoff into lakes?  

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#Question id: 3375

#Section 2: Evolution

	Evolutionary force		Caused
A	Mutation	i	Increase genetic variation within population
B	Genetic Drift	ii	Decrease genetic variation within population
C	Migration	iii	Decrease genetic variation between  population
		iv	Increase genetic variation between population

Which of the following combination is correct?

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#Question id: 8295

#Section 2: Evolution

Imagine that a phylogeny was developed for a group of mammals based on bone structure. Which of the following statements would be a reasonable prediction about a phylogeny for the same group of species based on similarities and differences in the structure of a particular enzyme?

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#Question id: 10584

#Section 1: Ecology

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?