Aphase diagram assumes is kept constant.

temperature

volume

pressure

density

pressure

Explanation:

The phase diagram is a graph used to indicate the temperature and pressure conditions necessary to obtain a substance in a specific physical state (solid, liquid or gas). In this type of diagram, pressure is a factor that is kept constant.

The x (horizontal) axis contains the temperature values, and the y (vertical) axis contains the pressure values. In addition, there are three curves connected to a single point (called a triple point), dividing the graph into three well-defined areas, as we can see in the diagram shown above.

In addition to indicating the conditions for the substance to be in a specific physical state, the phase diagram indicates the conditions for any change in physical state to occur.

the answer is c.) there is a warm front in region a and a stationary front in region b.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.