The diagram shows the heart of a bird. What is the function of the structure labeled Y?

to keep oxygen-rich blood and oxygen-poor blood flowing

to filter waste materials from oxygen-poor blood

to filter waste materials from oxygen-rich blood

to keep oxygen-rich blood and oxygen-poor blood separate

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.