The answer is wavelength. It is the distance between corresponding points of two consecutive waves (corresponding points are particles or points in the same phase, meaning the points have completed identical fractions of their periodic motion. In a transverse wave it is the distance between two successful crests or troughs while in a longitudinal wave is the distance between two successful compressions or rarefactions.
<span>The answer is (D) are k-selected.
Primates are the most K-selected among mammals. Individuals produce only a few whom
they invest a great amount of parental care. Reproductive strategies main goal
is to produce offspring and successfully rear them to adulthood.</span>
