The lack of change in such organisms is most likely because A) the environment that they lived in remained the same, and they were well-adapted to it B) all members of their population were genetically identical, and they lived in a rapidly changing environment C) there was a large amount of variation in their population, and the environment changed frequently D) they could move between different environments when food supplies became scarce

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

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