The oak tree pathogen Phytophthora ramorum has migrated 650 km in ten years. West Nile virus spread from New York State to 46 others states in five years. The difference in the rate of spread is probably related to

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#Question id: 10645

#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. dn/dt is isoclines when 

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#Question id: 11661

#Section 1: Ecology

Autogenic factors results from the community and its organism for example filling in the pond by the dead organism from the pond itself. It included several other factors except____

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#Question id: 12333

#Section 1: Ecology

Coral animals

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#Question id: 11180

#Section 1: Ecology

In contrast to herbivores,

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#Question id: 10860

#Section 1: Ecology

Plants use nectar to