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They can't touch. There is bone formation between them.
Like most animals electric eels have two eyes but they are not very useful. However, their sense of hearing is much more advanced than most fish. They can also produce a near continuous low voltage signal that can be used to 'detect' other living things.
Eels like a variety of foods. Two of their favorites seems to be crab, and shrimp. Eels also eat fish, and small mammals.
You grow an extra limb or two.
For the fact, if two pieces of dark matter touch it will cause a reaction and the pieces will fade, taking others with it.
If one charge is doubled, the electric force between the two charges will also double. This is because electric force is directly proportional to the product of the two charges.
Two positive charges will repel each other from a distance due to the electric force between them. They do not have to touch in order to feel the repulsive force. This repulsion is a fundamental property of electric charges.
yes
repel each other
eels
The electric force will be quarter of its strength.
The electric force between two objects decreases to one-fourth of the original force if the distance between them is doubled. This is because the electric force is inversely proportional to the square of the distance between the charges.