Answer:
Explanation: step 1 Carbon enters the atmosphere as carbon dioxide from respiration (breathing) and combustion (burning). The Carbon Cycle Step 2 Carbon dioxide is absorbed.
The best answer to fill in the blank would be B) Small intestine or the second option.
The parasympathetic nervous system <span>conserves energy as it slows down heart rate, increases intestinal and glandular activity, and relaxes the sphincter muscles of the gastrointestinal tract. It gets the nickname "rest and digest" for doing exactly so. Typically most active when sleeping, however is also the explanation for post-prandial fatigue, or being tired after eating (especially a large meal).</span>
