Answer: His claim that cells were the basic unit of all plant matter.
Explanation:
Producer.
I remember it by thinking: "auto means automatic, so autotrophs automatically make their own food, so they must be producers"
Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life because of recent lava flows, newly formed sand dunes, or rocks left from a retreating glacier.
