Answer:
Mast Cells
Explanation:
Mast cells release histamine in the blood stream, when they detect a substance that triggers an allergic reaction, also called an allergen.
Answer:
The gravitational force on an object increases as the object’s mass increases.
Explanation:
20. Cell Membrane 19. Mitochondria 18.<span> Osmosis</span>
When Rutherford performed his metal foil experiment, he was surprised that most of the alpha particles passed straight through the foil.
Hope this helps :)
