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well i know how stinging nettles sting if that helps... The stinging structure of the nettle is very similar to the hypodermic needle although it predates that man-made invention by millions of years! Each sting is actually a hollow hair stiffened by silica with a swollen base that contains the venom. The tip of this hair is very brittle and when brushed against, no matter how lightly, it breaks off exposing a sharp point that penetrates the skin and delivers its stinging payload. It used to be thought that the main constituent of the sting was formic acid - the same chemical used by ants, giving that never forgotten burning sensation that demands to be scratched. Although formic acid is present in the sting, recent research has shown that the main chemicals are histamine, acetylcholine and 5-hydroxytryptamine (serotonin). A fourth ingredient has yet to be identified. Remember when stung a natural remedy will often be found close at hand. The leaves of the dock contain chemicals that neutralise the sting and also cool the skin. hope this helps you!!!
What else can I help you with?
What types of force that exert pressure?
athmospheric pressure
What circumstance can exert pressure and why?
idek
How do fluids exert exert pressure?
All of the forces exerted by the individual particles in a fluid combine to make up the pressure exerted by the fluid.
Why you are not crushed by atomspheric pressure?
The fluids in your body also exert pressure.
How do you fluids exert pressure?
Fluids exert pressure due to the weight of the fluid above pressing down on the fluid below. The pressure in a fluid increases with depth because of this weight. This is known as hydrostatic pressure.
Fluids exert pressure because they are made up of tiny?
a. moving molecules that exert forces.
Where does the atmosphere exert pressure?
The earths winds
Which of does the atmosphere exert pressure on?
the earths surface.
Do all fluids exert pressure?
Yes, all fluids exert pressure. Pressure is a fundamental property of fluids and is caused by the molecules in a fluid colliding with the walls of the container or object they are in contact with.
Do solids exert pressure?
Yes, solids can exert pressure when a force is applied to them. The pressure is distributed over the area in contact with the solid, and it can cause deformation or compression depending on the material's properties.
How do plants commonly break large rocks ino smaller pieces?
roots penetrate into small cracks in rocks and they grow thy exert pressure on rocks breaking them
Which will exert more pressure river water or same amount of sea water?
Sea water will exert more pressure than river water due to its higher density. The pressure exerted by a fluid is directly proportional to its density, so sea water, being more dense than river water, will exert a greater pressure.
