Which is avascular (lacks blood vessels)? epithelial tissue muscle tissue nervous tissue connective tissue all of the choices are correct?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

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

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.