Carbon cycles through various materials here on Earth. Carbon is found in organisms that die and are broken down by microorganisms . These microorganisms put carbon back into the environmentWhich of the following processes describes how microorganisms cycle carbon back into the atmosphere? A. combustion
B. decomposition
C. photosynthesis
D. respiration

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Organisms may contain up to five levels of organization within their bodies. which level of organization is shown by the liver? a. tissue b. organ c. organism d. organ system

After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scientists to make sure that the data is real