A hormone is a regulatory molecule that is secreted into the blood by an endocrine gland
Answer:
Electrons can move from one substance to another when objects are rubbed together.
Answer:
A. It is a source of genetic variation
Diverging plate boundaries, earthquakes occur as the plates pull away from each other. Volcanoes also form as magma rises upward from the underlying mantle along the gap between the two plates. We almost never see these volcanoes, because most of them are located on the sea floor.
<span>C. Frogs will have brain damage if exposed to both brown sugar and regular sugar.</span>
