| 单词 | protoctist |
| 例句 | Sex began when unfavorable seasonal changes in the environment caused our protoctist predecessors to engage in attempts at cannibalism that were only partially successful. Did Sex Emerge from Cannibalism? Sex, Death and Kefir, by Lynn Margulis (1938–2011) 2011-11-23T20:15:04.617Z Like our protoctist ancestors that evolved from symbioses among bacteria, kefir individuals arose from the physical association of 30 different kinds of microbes. Did Sex Emerge from Cannibalism? Sex, Death and Kefir, by Lynn Margulis (1938–2011) 2011-11-23T20:15:04.617Z From many partly digested cyanobacteria in a hungry protoctist, a new individual, the green alga cell, and ultimately the plant, evolved. Did Sex Emerge from Cannibalism? Sex, Death and Kefir, by Lynn Margulis (1938–2011) 2011-11-23T20:15:04.617Z |
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