？
作者： Ray
AMC备赛感想
英才学者感想
作者： Grace
作为长姐，我感到自己在家庭中承担着一种“桥梁”角色，不仅要帮助弟弟管理情绪，还需要引导家庭其他成员更好地理解他的情绪表现。
一次无穷的跨越
作者： Sophia
记从部员到部长的感想，虽然还有一整个学期ahead
我对足球的追求
作者： Benjamin
怀揣着这个梦想，我一步步努力地训练，在周末和有空时找寻点点滴滴可以用来与朋友们踢球的时间。
Central Dogma - Flash Talk
A flash talk is a brief speech or presentation, intended to grab the attention of the audience and convey key information in a quick, insight, and clear manner.
Flash Talk: Protein Synthesis
元旦快乐
愿新的一年里，大家健康快乐、学业有成，勇敢追逐自己的梦想！
8.7 Discruptions of Ecosystems
in AP Biology
The long-term objective of restoration is to return an ecosystem as much as possible to its predisturbance state. Two key strategies are employed in restoration: bioremediation and biological augmentation.
8.6 Biodiversity
in AP Biology
Biodiversity can be considered at three main levels: Genetic diversity, Species diversity, Ecosystem diversity.
8.5 Community Ecology
in AP Biology
A biological community is an assemblage of populations of various species living close enough for potential interaction.
8.4 Effect of Density of Populations
in AP Biology
A birth rate or death rate that does not change with population density is density independent. If a death rate increases or a birth rate decreases with increasing density, it is density dependent.