第13週作業

http://tw.youtube.com/watch?v=ZOqazDipkkQ
天擇

第12週作業

http://tw.youtube.com/watch?v=kyg895CWs68
遺傳工程

4-3

In other words,as a resule of long term evolutionary changes each species plays a specific ecological role called its niche,with generalist species having broad ecological roles and specialist species having narrower ecological roles.Is it better to be a generalist or a specialist? It depends.When environmental conditions are fairly constant,as in a tropical rain forest specialists have an advantage because they have fewer competitors.But under rapidly changing environmental conditions,the generalist usually is better off than the specialist.
在這些話裡,由於長期得進化的變化種類,是扮演一個具體的角色.叫她(生態地位)
更多的種類有遼闊生態的作用而特有種類扮演狹窄的生態角色,這些是成為更好的<全才>或是一位專家嗎?
看情況而定,當環境的狀態是一定量的常數時,在熱帶雨林專家有有利因素,因為他們有較少競爭者,但是在一瞬間變化,生態環境狀態下,全方位的通常比專家強
Cockroachs ,the bugs many people love to hate,have been around for 350 million years longer than the dinosaurs lasted. One of evolution's great success stories they have thrived be cause they are rapidly reproducing generalists
蟑螂.這蟲子很多人很厭惡.它在35億年前就出現活的比恐龍還久,這是演變很成功的例子之一.她們很茁壯成長,造成她們是瞬間繁殖的全才

3-6

Terrestraial producers remove CO2 from the atmosphere and aquatic producers remove it from the water.There producers then use photosynthesis to convert CO2 into complex carbohydrates as glucose (C6H12O6)
陸地上的生產者,從大氣中轉CO2為氧氣,水中的生產者從水中消除CO2,那些生產者用光合作用轉換CO2為複雜的碳水化合物像葡萄糖(C6H12O6)