death rate, cd rate birth rate, b emigration rate, e immigration rate, i populat

Question

death rate, cd rate birth rate, b emigration rate, e immigration rate, i population density 0. Look at the graph shown above carefully before answering the question below. Given the birth, death, immigration, and emigration rates shown above: a. the population has a single stable equilibrium where the birth rate and the emigration rates are equal b. the population density will be well-regulated over the long-term, and even given periodic perturbations (for example, harsh weather events) the population will maintain its density within a stable range of equilibrium densities c. the population's carrying capacity, K, occurs at intermediate densities, where the birth and death curves cross the immigration and emigration curves d. the population's growth will be dominated by negative feedback processes e. the population will exhibit steady declines in density, until it reaches extinction

Explanation / Answer

Answer: E

The graph showing population density vs growth rate of the population. The population growth rate carries four factors viz., birth rate, death rate, emigration rate and immigration rate.Here in the present scenario it is clear that population density is proportional to the birth rate rate and death rate and inversely proportional to the emigration and and immigration.

Here in this study the emmigration and death rates are higher than the immigration and birth rates irrespective of the population dynamics.

r= (b + i) - (d + e)

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