False because you are born with a birth mark
No, the LEFT ATRIUM receives oxygenated blood from the lungs and then pumps it to the left ventricle. So it's the left chamber that receives blood also.
Hope this helps! :)
The reason is dehydration. His body is low on water and can't function without it so he is getting hot because his body doesn't have enough to water to cool it down. Hope this helped!