1.) is a 2.) is probably B. and 3.) is most likely a
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 six most important characteristics of a civilization are cities, government, religion, social structure, writing, and arts and architecture.
Explanation:
Answer:
C
Explanation:
im a mechanic i know this stuff
