Golgi body is all I would know for this but the proteins I don't know
In much of a digestive tract such as the human gastrointestinal tract, smooth muscle tissue contracts in sequence to produce a peristaltic wave, which propels a ball of food (called a bolus while in the esophagus and upper gastrointestinal tract and chyme in the stomach) along the tract.
Answer: Yes, the students can conclude that a chemical reaction occurred because a new material of a different color formed on the bottom part of the metal strip.
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