The warm counter current known as El niño moves southward along the coast of peru each year around christmastime. When this counter current flows strongly, it displaces the cold peru current offshore and results in:

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#Question id: 11361

#Section 1: Ecology

Which of the following tends to stabilize predator-prey relationships?

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#Question id: 3281

#Section 2: Evolution

One population X has 750 AA, 0 Aa, and 250 aa; the other Y has 500 AA, 500 Aa, and 0 aa. After one generation of random mating, the genotype frequencies X and Y respectively if the population size remains 1,000.

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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: 11984

#Section 1: Ecology

The proximate causes of behavior are interactions with the environment, but behavior is ultimately shaped by

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#Question id: 10895

#Section 1: Ecology

Members of a guild