Characteristics of the plasma membrane include which of the following?

cellulose
phospholipids and protein
increased strength to the cell
selective memebrane

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes