I help fight against diseases. Red blood cells
I carry impure(deoxygenated) blood to the lungs from the heart.
Plasma
I help transport respiratory gases (oxygen and carbon dioxide) to
different parts of the body.
Valve
I am the fluid part of the blood.
White blood cells
I am a special structure and prevent backflow of blood,
Pulmonary artery

  following the agreement that was reached in the treaty of indian springs in 1825, chief william mcintosh lost his life. why did this happen

What is the name of this mountain range found in northern africa?

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.