Studies of populations that reveal correlations between dietary habits and disease incidence are epidemiological studies.
<span>Leptin, a hormone predominantly made by adipose cells that helps to regulate energy balance by inhibiting hunger, is the hormone secreted into the bloodstream by fatty tissue to signal the hypothalamus that the body has enough food.</span>
Answer:
Box one: A compound
Box two: bonded chemically
Explanation:
it's a molecule, which is a collection of atoms bonded together chemically through their electrons.
hope that helps!
