Clouds of gas and dust are known as . It comes before protostar in the life cycle of a star.

Pick twenty foods and research the amount of total carbohydrates, sugars, and other carbohydrates in them. note: most food labels have this information. record your findings.

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?