4-1~4-3

4-1 what is biological evolution and how does it occur?
什麼事生物演變並且她怎麼發生
Biological evolution is the scientific explanation of how the earth's life changes over time
生物演變是科學解是地球的生命如何隨著時間的推移變化　　
biological evolution 生物演變
theory of evolution 進化論
The genetic makeup of a population can change族群的基因組成可能改變
mutations 突變
Individuals in populations with beneficial genetic traits can leave more offspring
個人在人群中的遺傳性狀有利於留下更多的後代
natural selection 天擇　
adaptation 適應作用
differential reproduction
微分複製
4-2 How do geological and climate changes affect evolution?
地質和氣候如何影響演化?
Geologic processes affect natural selection
地質過程影響天擇
Climate change and catastrophes affect natural selection
氣候變化和自然災害影響天擇
4-3 what is an ecological niche?
生態地位是什麼?
Each species plays a unique role in its ecosystem
每一個物種扮演獨特的角色在生態系中
ecological niche 生態位
generalist species 一般種
specialist species 特別種