The cycling of carbon throughout the environment is critical to ensuring the survival of all organisms. suppose a mountain lion kills a deer in the forest. photo by us department of agriculture what would likely happen first to the carbon in the deer carcass as it lies on the forest floor after the mountain lion has finished feeding on it? a. it would be incorporated into other organisms. b. it would be released back into the atmosphere. c. it would be turned into coal. d. it would be incorporated into the soil.