Living things that would be the first to experience adverse effects if large amounts of carbon dioxide were taken out of the biosphere are:
Correct answer: B. Producers (e.g. green plants)
- A. Decomposers (e.g. bacteria and fungi)
- B. Producers (e.g. green plants)
- C. Primary consumers (e.g. mice)
- D. Secondary consumers (e.g. snakes)
- E. Tertiary consumers (e.g. hawks)
Explanation
Producers take in carbon dioxide and produce oxygen by the process of photosynthesis, no other organism has this ability, so the removal of producers from the environment will result in large amounts of carbon dioxide and a decreased amount of oxygen as mentioned in the question.
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The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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