According to research these are the 7 Characteristics of Life:
1. Living Things are Composed of Cells:
Single-cell organisms have everything they need to be self-sufficient.In multicellular organisms, specialization increases until some cells do only certain things.2. Living Things Have Different Levels of Organization:
Both molecular and cellular organization.Living things must be able to organize simple substances into complex ones.Living things organize cells at several levels:
Tissue - a group of cells that perform a common function.Organ - a group of tissues that perform a common function.Organ system - a group of organs that perform a common function.Organism - any complete living thing.