Transcribed Image Text: 28. Mrs. Gallo’s physician suspects that she is showing the initial signs of multiple sclerosis, a disease characterized by the formation of hardened plaques in the insulating

Transcribed Image Text: 28. Mrs. Gallo’s physician suspects that she is showing the initial signs of multiple
sclerosis, a disease characterized by the formation of hardened plaques in the
insulating sheaths surrounding nerve fibers. medical imaging technique
will the physician probably order to determine if such plaques are present? Transcribed Image Text: 23. While ing his dad with gardening, little Jake got a nasty cut on his forearm.
He kept crying until he noticed that the bleeding stopped rather quickly.
mechanism was at work? Is this an example of a positive or a negative
feedback mechanism?