Age distribution is the number of individuals of each age in the population which influences greatly the rate of population growth。 （ ）
举一反三
- Age distribution is the number of individuals of each age in the population. （ ）
- Which of the following will change as a population evolves? A: the frequency of reproduction among individuals B: the number of individuals with recessive phenotypes C: the size of a population D: the frequency of a particular allele
- The population growth rate is the birth rate minus the death rate.()
- What is meant by the "unused portion of K"? A: the density-dependent growth rate of a population B: the total number of resources available to a population C: the number of organisms still left to populate an environment D: the maximum number of organisms tha an environment can support
- The rate of population growth reached a peak in 1999 and declined in ______ years.