Serotonin and n<span>orepinephrine.
Serotonin decreases appetite by activating </span>5-HT2C receptors<span> on dopamine-producing cells which will cause dopamine release to stop. Dopamine is responsible for the increase of appetite, therefore, serotonin decreases appetite.
Norepinephrine by increasing the production of glucose it also causes the body to feel satiety and, therefore, decreases the appetite.</span>
Answer:
The waste products are Carbon Dioxide and Water.
Explanation:

The daughter cells produced from Meiosis are genetically different from each other due to the process of Crossing Over in the stage of Prophase I.
In Mitosis, there is no Crossing Over involved, since it is intended to help the body in growth and repair, not in reproduction.
Genetic Variation is important for reproduction so that not all offspring look exactly like each other or so that they do not look exactly like their parents.
Answer:
Energy cannot be destroyed but moves from one state to another
Explanation:
In an ecosystem the dependence on energy is one of the main driving forces. Most animals and plants are always growing, changing location and moving and all these functions require energy. The energy after transformation from the sun, is referred to as biomass and the transfer of energy from one organism to another is called a food web.
The answer is:
D. Matter and energy can change forms and locations in ecosystems.