why, in part, is weight loss more successful with exercise and also after bypass surgery? select one: a. leptin levels suppress the appetite. b. ghrelin levels are relatively low. c. pyy release from the hypothalamus is suppressed. d. leptin release from subcutaneous fat stores is enhanced. e. adiponectin levels are relatively high.

The right answer is ghrelin levels are relatively low.​

Ghrelin is a hormone secreted by the cells of the stomach, ghrelin triggers the sensation of hunger. The release of ghrelin is done when the body needs a new supply of energy and therefore to feed. The rate of ghrelin decreases following the meal: the hunger disappears.

This hormone is the subject of many studies: inhibiting its action may help to fight against obesity. At least for obesity due mainly to overeating.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.