What is the MAIN reason the author includes the section "Pathway Of Blood Through The Heart"? A
to emphasize to readers the crucial role oxygen plays in supporting the pumping function of the heart
B
to give readers a better idea of the complexity involved in keeping the human body alive
C
to illustrate for readers the overall reason the heart is divided into four separate chambers and functions as two pumps instead of one
D
to give readers a fuller understanding of how all the parts of the heart work simultaneously to function as a whole

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.

i think he will be okay, id probably take the dog to the vet just incase