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虽然种群增长率与种群增长速率是教材没有凸显的一对“隐性”概念,但每年的高考特别看好转换角色对增长率与增长速率的考查.按照最新人教版教材给出出生率、死亡率的定义,(出生率-死亡率)就是新增加的个体数占原来个体数的比例即种群增长率(无单位),习惯上也叫增殖率.如果λ值表示相邻两年(生物的两代)种群数量的倍数,进一
Although the population growth rate and population growth rate are not obvious a pair of “hidden” concept, but the annual college entrance examination is particularly optimistic about the conversion role of growth and growth rate of the test. According to the latest PEP teaching material is given birth rate, The definition of mortality, (birth rate - mortality) is the ratio of the number of newly added individuals to the original number of individuals, ie the rate of population growth (no unit), which is customarily also called the rate of reproduction. If the value of λ indicates two years in a row Two generations) multiples of the population, into one