In the apple maggot fly, the frequency of certain alleles increases steadily as one goes from North to South. This is an example of: Sympatric speciation.
Sympatric speciation is observed when there are no physical barriers which prevent any members of a species from mating with another, and all members are in close contact to one another. A new species, possibly established on a distinct food source or trait seems to develop instinctively.
The example of apple maggot fly supports a model for sympatric speciation in progress. Hawthorn is the native host for the apple maggot fly in North America. However, in the mid-1800s, a new population developed on introduced, domesticated apple.
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The dual nature of light is the property of light where it has both wave and particle properties.
The wavelength properties of light are such that light behaves as a set of electromagnetic waves that have different wavelengths.
The electromagnetic spectrum is the whole range of frequencies and wavelengths of electromagnetic waves.
<h3>What is the wave-particle dual nature of light?</h3>
The wave-particle dual nature of light is the property of light where it has wave-like properties such as reflection, refraction, diffraction, etc., and also has particle properties such as the photoelectric effect.
The wavelength of light is the distance between successive points in the wave.
The whole range of frequencies and wavelengths of light gives the electromagnetic spectrum.
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