M 4.8.2b Extinction of a species occurs when the environment changes and the adaptive characteristics of a species are insufficient to permit its survival.
(4.8.2b Extinction of a species; occurs; ) (the environment; changes; ) (the adaptive characteristics of a species; are; insufficient to permit its survival) (the adaptive characteristics of a species; to permit; its survival)
4.8.2b Extinction of a species the environment the adaptive characteristics of a species the adaptive characteristics of a species
occurs changes are to permit
insufficient to permit its survival
its survival