The depth of a bee sting penetration depends on the bee. Some bee stings are shallow, and the bee is able to pull out its singer and sting again. In other cases, the stinger becomes embedded in the human flesh and needs to be pulled out.
Don't worry. A bee doesn't always leave its sting behind. If it doesn't penetrate very far the bee will be able to remove the sting. If a sting is left behind it is fairly obvious, so if you can't see one, there almost certainly isn't one.
The nature of the bee and wasp sting is that they are usually inflammatory and acidic.
Bumble bees are bees. If they sting, it is a bee sting. Robber flies can bite humans. It is not similar to a bee sting.
yes
It can't. A drone (male bee) cannot sting.
A bee sting will start hurting immediately.
A bee does not sting itself, but a wasp sometimes will. Bees will sting other bees if they are fighting.
A bee's sting is in the tip of the abdomen. In order to sting the bee (which will be standing on its victim) will bend its abdomen down, extend the sting and thrust.
Most species of bee have a sting with a venom, some of them can penetrate human skin.
A bee sting injects formic acid, which is considered a weak acid. It can cause pain and irritation at the site of the sting.
According to the link, below, the major chemical in a honey bee sting is "melittin".
Bees sting.