Answer:continuous variation
Step-by-step explanation:
Variation is the differences between individuals within a species. Variation could be caused by genetic inheritance or by environment factor(s). There are two types of variation which are; continuous variation and discontinuous variation.
''CONTINUOUS VARIATION results from the interaction of a number of gene loci specifying a given trait. Rather than stepwise inheritance patterns, phenotypic distributions are more curve-like.'' Examples of continuous variation are; skin colour, air colour, height and weight.