1. ____ describes several types of relationships and are categorized by how they affect the species involved.

symbiosis
predation
Abiotic factors
heterotrophs

The term that describes several types of relationships and is categorized by how they affect the species involved is "symbiosis." To understand what symbiosis is and its different types, you can look it up in a biology textbook or search for reliable online resources. This will help you gain a deeper understanding of symbiotic relationships and how they impact different species. Additionally, studying the concepts of predation, abiotic factors, and heterotrophs will give you a broader understanding of ecological interactions and their effects on species.