A type of protein or molecule involved in cellular processes, often related to signaling or energy metabolism.

A phylum of animals that includes jellyfish, corals, and sea anemones, characterized by radial symmetry and specialized stinging cells called cnidocytes.

An organism belonging to the phylum Cnidaria, which includes animals like jellyfish, corals, and sea anemones, known for their stinging cells.

A specialized cell in cnidarians, such as jellyfish, that contains a stinger used for capturing prey and defense.

A cell found in cnidarians that contains a cnidocyst, responsible for stinging or injecting toxins into prey or threats.

A tree-like diagram used to illustrate the evolutionary relationships among species based on shared derived characteristics.

A type of leaf modified to function as a stem, often found in plants like cacti or asparagus.

A type of junction found in fungal hyphae that facilitates the transfer of cytoplasm and organelles during cell division.

A taxonomic rank in biological classification, one level above order and one below phylum, grouping organisms with shared characteristics.

A form of learning in which a neutral stimulus becomes associated with a meaningful stimulus, leading to a conditioned response.