Vasodilation when you re hot(arterioles dilates so more blood flows through the surface of the skin,vasoconstriction vhen you re cold(arterioles constrict so less blood flows through the surface of the skin)
The answer is ectopic pregnancy..this is the answer..
arachnoid
a fine, delicate membrane, the middle one of the three membranes or meninges that surround the brain and spinal cord, situated between the dura mater and the pia mater.
66% of new HIV infections occur in sub-saharan Africa.