物種生活和生存的地方叫什麼?
ⓐ棲息地 ⓑ生存地 ⓒ生活地 ⓓ活動地
ANS:ⓐ
2009年6月17日 星期三
2009年6月13日 星期六
翻譯作業4-1.1~4-1.1
It asked what role a certain species,such as an alligron plays in a ecosystem,an ecologist wo
uld describe its ecological niche,or simpleniche.It is species way of life or role in a communit
y or ecosystem andincludes everything that affects its surrival and reproduction.A peciesha
bitat is the place where it lives and its niche is its pattern of living.
生態位置:每種生物會會在生態性中扮演一種角色
棲息地:生物居住的地方和生態位置息息相關
uld describe its ecological niche,or simpleniche.It is species way of life or role in a communit
y or ecosystem andincludes everything that affects its surrival and reproduction.A peciesha
bitat is the place where it lives and its niche is its pattern of living.
生態位置:每種生物會會在生態性中扮演一種角色
棲息地:生物居住的地方和生態位置息息相關
翻譯作業3-5.1~3-5.4
All organism,whether dead or alive,are potentialsources of food for other organisms.Acaterpillar eats aleaf,a robin eats the caterpillar,and a hawk eats the robin. decomposers consume the leaf,caterpillar,robin,and hawk after they dieand return their ntrients to thesoil for reuse by producers.A sequence of organsiums,each of which serves as a sourceof food for the next,is called a food chains. It determineshow chemical energy and nutrients move from one oganismto another and return their nutrients to the soil for reuseby producers through.The trophic levels in an ecosystem alongthe same pathways-primarily through photosynthesis,feeding,and decomposition-as shown in Figure 3-14.In natural ecosystems,most consumers feed on more than one typeof consumer. Because of this,organism,in most ecosystems from a complex network of interconnected food chains called a food web.Tropic levels can be assigned in food webs just as in food chains and webs just as in food chains.Food chains and webs showhow producers,consumers,and decomposers are connected to one anotheras energy flows through trophic levels in an ecosystem.Each trophic level ina food chain or web contains a certain amount of biomass,the dry weigh of all organic matter contained in its organisms.In a food chain or web,chemical energy stored in biomass is transferredfrom one trophic level to anthor.在大自然生態系中,多個消費著所組成不同的類型,這樣的因素使多個生態系可以組成一個與食物有關的網路,稱為食物網。食物網和食物鏈可以顯現生產著和消費著彼此間的關係。所有生物,不管生或死就類似食物源頭,供給其他生物,例如:一隻毛毛蟲吃葉子知更鳥吃毛蟲,老鷹吃知更鳥,死後又因腐生菌回覆給消費著。一個以順序排列的生物,前一個被後一個當時物給下一個,升為食物鏈。食物鏈決定化學能量和腐生菌道下一個生產著再到生物,然後回腐生菌在回給生產著的關係。會如課本圖片3-14一樣。
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