"Survival of the fittest" best means that an organism is answers
1.the one that can best survive in the environment

2.the one that is the biggest in the environment

3the one that is the strongest in the environment

4the one that is the fastest in the environment

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit