Hello,
I believe you're asking which option is true. If so, A) do not require a medium. Unlike mechanical waves, electromagnetic (or light) waves do not require a medium. It has been proven that light travels in a straight line. Light waves are, in fact, electromagnetic radiation, and they can travel in a vacuum.
Faith xoxo
C. prokaryotes do not have a well defined nuckeus
If a person is suffering from schizophrenia, other
manifestations that Else can be suffering of aside delusions and hallucinations
is that she can experience a lack of motivation when doing her activities,
confused thinking and she will likely hear voices that does not even exist.
Basically all of the choices given are failure of negative feedback mechanisms to maintain homeostasis. The correct option among all the options that are given in the question is the last option or option "E". I hope that this is the answer you were looking for and it has come to your help.