symbiotickými

Symbiotickými is the instrumental plural form of the Czech adjective symbiotický, meaning "symbiotic." It is used in Czech to describe actions, relationships, or processes that occur through symbiosis in the instrumental case, for example symbiotickými vztahy (symbiotic relationships) or symbiotickými mechanismy (symbiotic mechanisms). The term derives from the Greek word symbiosis, meaning “living together.”

In biology, symbiosis refers to a close and long-term interaction between two or more different biological species that live in direct contact. These interactions are categorized as mutualism (both partners benefit), commensalism (one benefits, the other is unaffected), and parasitism (one benefits at the expense of the other). Symbiotic relationships are widespread and can involve various levels of dependence and evolutionary integration.

Common examples include lichens, a partnership between a fungus and a photosynthetic partner; mycorrhizal associations between fungi and plant roots; nitrogen-fixing bacteria (rhizobia) in legume nodules; and the relationship between corals and their algal symbionts. In the human body, gut microbiota engage in symbiotic interactions with the host, contributing to nutrition and immune function while receiving nutrients in return.

In Czech scientific and descriptive writing, symbiotickými is regularly used in phrases that denote instrumental circumstances, such as symbiotickými vztahy or symbiotickými mechanismy. The base form of the concept is symbiotický, with related terms including symbioza and related derivatives in Czech.