What factors can be both abiotic and biotic?

biotic: Producers, consumers, decomposers

abiotic: Atmosphere, chemical elements, sunlight/temperature, wind, and water

Explanation:

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.