https://pubmed.ncbi.nlm.nih.gov/18497488/
Cellular polyamines of phototrophs and heterotrophs belonging to the lower eukaryotic phyla...
Cellular polyamines of phototrophs and heterotrophs belonging to the lower eukaryotic phyla Cercozoa, Euglenozoa, Heterokonta and Metamonada
https://www.sciencing.com/did-heterotrophs-evolve-autotrophs-23027/
Did Heterotrophs Evolve From Autotrophs?
Mar 24, 2022 - Scientists have overwhelming evidence to show that all species now alive on Earth evolved from a common ancestor; but figuring out where that common ancestor...
evolve