A living system is a a open self-organizing life form that interacts with their environment.
Answer:
virus are obligate parasites. Viruses do not, however, carry out metabolic processes. Most notably, viruses differ from living organisms in that they cannot generate ATP.
During the cell cycle, it skips the whole process in the cell cycle to produce a cell, which causes errors within the cells and produce more of these errors. This how cancer occurs.
Humans have invented things like clothing, houses, and heating systems to make lands with harsh climates more comfortable or livable. Human had to come up ways in order to be in a position to survive and live in lands with harsh climates such as cold weather, the invented, heating and heating system to always keep them warm.