Before your food passes from the mouth and down your esophagus, salivary amylase, an enzyme in saliva, begins to digest the starch in your bread. That is the start of chemical digestion. ... The passage of the bolus through the esophagus to the stomach occurs by peristalsis, a series of wave-like muscle contractions.
False. A person cannot become a problem drinker by drinking beer.
C) Primary Producer. The producers are what make the food chain. Without them there would be no primary consumers. And without primary consumers there would be no secondary consumers.
Answer:
The membrane that covers the lungs is called the pleura :)
Explanation:
Answer:
homologous structure
Explanation:
those organs which have the same basic structure but have different functions are known as homologous organs/structures.
