Why do living things need oxygen

What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up?

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

What is the polyatamic ion of borate