What is the defining feature of exponential growth? It lasts indefinitely The gr
ID: 96204 • Letter: W
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What is the defining feature of exponential growth? It lasts indefinitely The growth rate is constant The growth rate increases rapidly over time The growth rate is very high What four factors define population growth Age-specific birth rates, age-specific death rates, age structure, and metapopulation structure Survivorship, age-specific mortality, fecundity, death rate. Mark-recapture, census, quadrant sampling, transects Births, deaths, immigration, emigration In what populations does exponential growth tend to occur? In populations that colonize new habitats In populations that experience intense competition In populations that experience high rates of predation. In metapopulations If most individuals in a population are young, why is the population likely to grow rapidly in the future? Death rates will be low. The population has a skewed age distribution. Immigration and emigration can be ignored. Many individuals will begin to reproduce soon Why have population biologists become particularity interested in the dynamics of metapopulations? Because humans exist as metapopulations. Because Whooping Cranes exist as a metapopulation. Because many populations are becoming restricted to small islands of habitats. Because metapopulations explain why populations occupying large, contiguous areas are vulnerable to extinction. Studies of the population cycles of the lynx and the snowshoe hare have revealed that predation is the dominant factor affecting prey population cycling. hares and lynx are so mutually dependent that each species cannot survive without the other both hare and lynx populations are regulated mainly by abiotic factors. the hare population is r-selected and the lynx population is r-selected. Analysis of ecological footprints reveals that Earth's carrying capacity would increase if per capita mean consumption increased current demand by industrialized countries for resources is much smaller than the ecological footprint of those countries. it is not possible for the technological improvements to increase Earth's carrying capacity for humans. the ecological footprint of the Canada is high because per capita resource use is high. Based on current growth rates, Earth's human population in 2050 will be closest to 2 billion 4 billion 5 billion 7 billion 9 billion Population ecologists follow the fate of same-age cohorts to A determine a population's carrying capacity determine a population's carrying determine the birth and death rate of each group in a population. determine if a population is regulated by density-dependent processes determine the factors that regulate the size of a population.Explanation / Answer
Answer 60: B) The principle that for natural selection to favor an altruistic act, the benefit to the recipient, corrected for relatedness, must exceed the cost to the altruist
Answer 61: B) The growth rate is constant
Answer 62: D) Birth, deaths, immigration, emigrations
Answer 63: A) In populations that colonize new habitats
Answer 64: D) Many individuals will begin to reproduce soon
Answer 65: C) Because many populations are becoming restricted to small islands of habitat
Answer 66: A) Predation is the dominant factor affecting prey population cycling
Answer 67: D) the ecological footprint of the Canada is high because per capita resource use is high
Answer 68: E) 9 Billion
Explanation: Current population is close to 7 Billion, so only one option is more than 7 billion that is option D
Answer 69: B) -Determining the birth and death rate of each group in a population
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