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

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#Question id: 3355

#Section 2: Evolution

Speciation in ancestor as following way

A- Non-swimming populations separated by a river may gradually diverge because there is no gene flow between them

B- Plants commonly exhibit polyploidy, meaning they contain three or more sets of chromosomes

C- The tendency for two species to diverge in morphology and thus resource use because of competition

Which of the following above condition allowed to which type of speciation?

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#Question id: 12294

#Section 1: Ecology

A ________________ survivorship curve shows a constant rate of survivorship throughout life.

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#Question id: 3297

#Section 2: Evolution

Which of the following is incorrect statement?

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#Question id: 10895

#Section 2: Evolution

Members of a guild

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#Question id: 10664

#Section 2: Evolution

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)