THE ORIGINS OF MAJOR LIFE FORMS

Symbiogenetic theories concur with Darwinism on how selection operates , but differ in regarding as blatant failures what Darwinisms pass as intriguing theoretical challenges, thus ''proving'' that natural selec tion is nearly powerless. No such problems arise by assuming that the struggle for existence operates not just at the level of genes or indi viduals but also through populations and communities, selecting phenot ypes which non-trivially depend both upon whole genomes and conditions of life.