This contamination now allow the virus to move into another living medium (the one who actually ate the potato).
After the virus enter the eater's body, it will start to reproduce itself and caused several symtoms during the period where the antbodies inside the host's body is fighting it.
Hypothalamus doesn't release hormones into bloodstream during a stress episode.
Sponges are similar to a small intestine because they'll both squeeze parts of themselves to digest foods and nutrients. Not to mention the fact that they're both soft.
Hope this helped! <3
The testes and the ovaries are the glands that stimulate reproductive cycles.