There are two<span> main types of </span>wave<span> interference: constructive interference and destructive interference. Constructive interference </span>happens<span> when the amplitude of the combined </span>waves<span> is larger than the amplitudes of the single </span>waves<span>. This can occur when the </span>crests of two<span> transverse </span><span>waves overlap.
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C and D are units of length or distance.
A is a measured angle.
B is a unit of angular measurement.
That only the best traits would go through. The weaker trait in the animals would eventually die off.