nonsense ,dum and crazy are the two types variation shown by living organisms.
mutation brings about variation which is the basis of evolution and the two types of variation are heritable and non-heritable
Natural and Artificial Selection
Mutations and emergent properties.
viruses and infections
you can add two
Organized And Disorganized
depends where you put it
two categories of diseases
Direct variation is the ratio of two variable is constant. Inverse variation is when the product of two variable is constant. For example, direct variation is y = kx and indirect variation would be y = k/x .
genetic and environmental variation
RAM LTM these are the two categories
The reason why some people put questions under categories that have nothing to do with the question could be because they made a genuine mistake or perhaps the question could have been placed under one of two categories and the person chose the less obvious one.
Mathematical Variations are mainly of two types which are: -Direct Variation -Indirect Variation
There are two categories of experiments: laboratory and field.
Two categories of chemicals are based on carbon ?
The two main categories are convenience goods and shopping goods; two lesser categories are specialty items and unsought goods.