Answer:
Explanation:
zinc zn 30 65.38 u 30 34 30
Smallpox- began Africa, spread through trade and human interaction.
Chestnut blight-isn't this a chestnut found in America?
Endorphins are brain chemicals
known as neurotransmitters which are released when the body feels a certain
amount of stress and pain. Endorphins alter the communication of pain in the
body by interacting with the opiate receptors and blocking the synapse so that signals
cannot be sent to the brain in order to reduce an individual perception of pain.
Man i hate school that really makes my head hurt
