Evolutionary trees such as this are properly understood by scientists to be

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#Question id: 12423

#Section 1: Ecology

A population at K is

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#Question id: 10664

#Section 1: Ecology

dN/dt = rN (K-N/K ) 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. What is value of per capita growth rate when population size is 200 individuals? ( K= 400, r =.25)

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#Question id: 4619

#Section 2: Evolution

Within six months of effectively using methicillin to treat S. aureus infections in a community, all new S.aureus infections were caused by MRSA. How can this best be explained?

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#Question id: 4602

#Section 2: Evolution

If the bacterium Staphylococcus aureus experiences a cost for maintaining one or more antibiotic-resistance genes, what would happen in environments that lack antibiotics?

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#Question id: 12582

#Section 5: Applied Ecology & Evolution

Which of  the  following  describes carbon dioxide,  methane, and  water  vapor re-reflecting infrared radiation back toward Earth?