Hyperthyroidism treatment in cats usually involves antithyroid medication or the use of radioactive iodine to destroy the abnormal (overactive) tissue growing in the thyroid gland. surgery to remove the abnormal tissue is generally not advised, as the surgery could also accidentally destroy parathyroid tissue. the parathyroid gland releases a hormone called pth that increases blood calcium levels. based on your knowledge of homeostasis, predict why surgery is ill-advised.

its 42

i say its d?

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."