There is a neurotoxin found in pufferfish, blue-ringed octopus, and in some other amphibians including newts, toads, and frogs called tetrodotoxin. See wikipedia for an exhaustive treatment of it's mechanism. Voodoo magicians in Haiti made this topic famous by using the toxin from a certain type of frog to induce a comatose-like state in a person. The person would be taken for dead, (and though still conscious) buried, and then exhumed by those who would use these brain-damaged people to work on sugar cane farms as slaves.
it has no effect. density of a substance is the same no matter the size or shape of the sample.
neutral substance or salts
common ion effect
common ion effect.
It is supposed that benzene has a carcinogenic effect.
Drugs effect nerves in your body that can paralyze you so you wouldn't be able to play sports
Haemotoxins affect the blood - usually by rapid clotting of the red blood-cells. Neutotoins affect the nervous system, causing paralysis.
it has no effect. density of a substance is the same no matter the size or shape of the sample.
it is a substance
When a disc in someone's back is crushed, it can paralyze them. It can also effect the way their body functions. This depends on what disc is crushed.
It depends on the substance :)
neutral substance or salts
Phase change doesn't effect the mass of substance. However, it cause drastic change of density and the weight of substance may change due to buoyancy force.
It can be observed without changing the identity of the object.
The axon would be unable to generate action potentials.
Pressure
No