That after two parthenogenetic, replicated stages the third should be by normal reproduction.

Firestone's view of gender relations as determined by reproduction is the clearest case.

It often multiplies by vegetative reproduction, however, with the rounded part budding off into a new individual.

It only multiplies inside foreign cells by reproduction.

The human population changed by reproduction, by transfer to Commensal form, or by death.

Darwin tells us that evolution occurs by reproduction with heritable variation and natural selection.

The plume anemone can also increase its numbers by asexual reproduction.

Instead, they form colonies which spread by vegetative reproduction along rootstocks.

A group which perpetuates itself by endogamous sexual reproduction usually has some perception of ethnic identity.

This creates a diverse primary repertoire by differential reproduction.