of reproduction
By their genetic similarities
By their habitats
By their evolutionary relationships
By their diet
By their size
How are living things grouped or categorized?
By their common characteristics
By their behaviors
By their ages
By their models
3 answers
what is the answers
Living things are grouped or categorized based on their common characteristics, genetic similarities, evolutionary relationships, behaviors, habitats, diet, size, age, models of reproduction, and other relevant factors. These categories help scientists organize and study the diversity of life on Earth.