It's called a coma! (:
Something interesting about a comet is that it basically has four parts -
a nucleus, a coma, a dust tail and an ion tail, and the plasma tail of the comet is extremely hard to see by the human eye!
I hope all is well, and you pass! Good luck, rockstar! (: If you need anymore help, or even have any comments - let me know! (:
The answer is 4, because if the ants smell the same dead smell on this particular ant in the colony, their initial reaction is to eliminate it. The chemical sprayed upon the ant acts as a stimulus for a particular behavior.
1. α cells 2. raises
note: insulin lowers the glucose level
