James wants to estimate the absolute age of an animal fossil. However, test results show that the fossil doesn’t contain any atoms of carbon-14. What can James conclude about the lack of carbon-14? A. The animal, whether living or dead, never had carbon-14 in its system. B. The animal’s carbon-14 decayed long before the animal died. C. Finding another fossil nearby without carbon-14 will guarantee that he has matching fossils. D. Without carbon-14, it will be an impossible task to estimate the age of the fossil. E. Without carbon-14, James can use relative dating to estimate the age of the fossil.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

burning fossil fouls really decrease the carbon in the atmosphere so b

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive