The condition, connection, or state of one thing compared with another.
In the field of biology, a distinct and specialized interdependence between two living entities is referred to as “host-parasite relations”. It describes the interaction between a host, which provides a suitable environment for the parasite to survive and reproduce, and the parasite, which harms the host to varying degrees. This type of relationship can have various forms, ranging from a short-term attachment to a long-term coevolutionary association.