Which is an example of the body maintaining homeostasis using a positive feedback loop?
a. glucose rises > glucagon is released > insulin is released > blood glucose lowers
b. blood glucose lowers > insulin is released > glucagon is released > glucose rises
c. glucose rises > glucagon is released > blood glucose lowers > insulin is released
d. blood glucose lowers > glucagon is released > glucose rises > insulin is release

When practicing refusal skills, it is beneficial to participate in a potentially stressful or threatening situation. select the best answer from the choices provided. t f

The future for teen moms can be compromised due to the demands of parenting.

An 80-year-old woman comes to the urgent care clinic with dyspnoea on exertion. on physical examination, her blood pressure is 100/70, and her pulse is 75. she has no pulsus paradoxus. her jugular veins are distended, and she has distant heart sounds. in addition, she has extra third and fourth heart sounds. her liver is enlarged, and she has pedal oedema. she has occasional premature ventricular contractions on her electrocardiogram. a chest x-ray reveals clear lung fields with a dilated cardiac silhouette. her echocardiogram reveals ventricular walls with a "speckled pattern". which of the following is the most likely diagnosis? - alcoholic cardiomyopathy- amyloidosis- haemochromatosis- tuberculosis- viral myocarditis