Contain structures that regulate and perform life functions.
False. A person cannot become a problem drinker by drinking beer.
Answer:
Yes, viruses are super small. It is also smaller than bacteria. So you wouldn't notice anything.
Answer:
When you eat, food passes from the throat to the stomach through the esophagus. A ring of muscle fibers in the lower esophagus prevents swallowed food from moving back up. These muscle fibers are called the lower esophageal sphincter
Explanation:
