Ilove to use this for my bio hw so my question is a group of similar cells that perform a particular function is a- an organ b- an organ system c- a tissue d- a division of labor

Which taxon group is more specific, in regards to organisms that are in that group? mammalia animalia

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

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