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Whats ir diffrence between Myopia and Hypermetropia?

Myopia

Myopia is a problem of eyeside. Its also called short sight . In which eyeball become elongate, such person are unable to distant objects clearly. The image of a distant object is formed in fornt of retian. This problem can b correct by using concave lens.

Hypermetropia

Hypermetropia is a problem of eyeside. Its also called long Sight. In which eyeball become short, such person are unable to distant objects clearly. The image of a distant object is formed in back of retian.This problem can b correct by using canvax lens.

Define nerve? Types of nerve.

Nerve:

Nerve mean union of many axon that are enveloped by a lipid. Based on axons nerves divide into three type.

Sensory nerve:

Thoes nerve that contain only axons of sensory neurons called sensory nerve.

Motor nerve:

Thoes nerve that contain only motor neuron is called motor nerve.

Mixed nerve:

Thoes nerve tha contain both motor and sensory nerve called mixed nerve.

What is diffrence between hypertonic, hypotonic and isotonic solution?

Hypertonic solution:

The sloution in which solute concentration is high and solvent concentration is low is called hypertonic solution.

Hypotonic solution:

The condition in which solute concentration is low and solvent concentration is high is called hypotonic solution.

Isotonic solution:

The sloution in which both solute and solvent concentration are equal that is called isotonic solution.