导师和自由撰稿人。科学教师,散文爱好者。最近回顾的文章:2020 | St. Rosemary Institution©2010-2021 | Creative Commons 4.0

大河谷社团的政治和国家权力

国家领导人和象征性统一统治者控制埃及法罗(牧民)的手段有时作为上帝担任。组织劳动力以管理洪水;分布食物;使用尼罗河作为高速公路统一,控制。法老的命令,政策担任法律,被视为德文。美不达米亚城市国王/皇家,调解,铅,崇拜,接受奥卡尔。组织劳动力; ......

生物关系:共谋,利基,寄生

Niche An organism’s ecological ROLE in the environment (NOT HABITAT!) All components of lifestyle and how they affect other organisms Three Types of Symbiosis Mutualism both species benefit Commensalism one species benefits, the other is unaffected Parasitism one species benefits, the other is harmed Lichen Lichen is really two organisms: algae and fungus. The fungus…