answer; ///i do believe that the correct answer is (b); ///to inform, entertain or persuade an
answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.
they fuse to form they have half as many chromosomes as a somatic cell of the same individual. b