Botulinum toxin is a blocking agent preventing the release of certain neurotransmitters, specifically Acetylcholine, from the endings of the motor nerves (#Kennedy, 2002 and (#Kent, 1998). Botulinum toxin has a light chain and a heavy chain, each of which contributes to the toxicity.
Making the world better, one answer at a time. The geography of Greece is very mountainous with many valleys around them making it hard for other city states to come and attack them. The geography of Greece is very mountainous with many valleys around them making it hard for other city states to come and attack them.
We begin to look at the geography of ancient Greece by examining how Greeks lived on their farms, why they traded, road systems, and the plant life that ancient Greece had. Geography has always had a great influence on Greece and its inhabitants.