The researcher is

concerned with obesity and its effect on the human endocrine system. Leptin as

one of the hormones of adipose tissue normally induces satiety and suppresses

hunger in the hypothalamus. It regulates energy output and intake to a large

extent by influencing feeding behaviour, appetite, hunger, and energy

metabolism. Because its circulating amount corresponds to the amount of adipose

tissue in the body, it provides feedback information to the brain about the

state of energy stores. In obese people, there is a persistently elevated level

of this hormone, called hyperleptinemia, and therefore the body of obese people

develops resistance to it. Select from the pictures the tissue that produces

leptin.