changing of stored chemical energy in food molecules to a form usable by organisms.
Explanation:
Cellular respiration involves the changing of chemical energy in food molecules to a form usable by organisms.
During the process of cellular respiration, oxygen combines with food materials in form of glucose to release useful energy needed for life to function.
Respiration can be pictured as the reverse process of photosynthesis in which chemical energy is produced.
In respiration, energy is released from the food materials.
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The answer would be letter B.
It would be D. being able to eat plants that survive in the changed environment
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In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.
Answer:
a. All of these
Explanation:
All of these options are correct
