有jellyfish or 有algae 先?

2009-01-25 3:19 am
jellyfish belongs to which group ?
有jellyfish or 有algae 先?


急!!!thx!!

回答 (3)

2009-01-27 3:07 am
✔ 最佳答案
jellyfish is invertebrate group obviously as above said

jellyfish and algae. it is algae
since the ancient algae is blue-green algae which is single-celled organism still exist in present time.
those algae u saw nowadays underwent so many processes of evolution, and so u hardly imagine algae exist in this world for long. it should be far more than jellyfish.
2009-02-01 11:41 pm
1. Jellyfish belongs to which group?
Jellyfish belongs to invertebrate.
水母,是海洋中重要的大型浮遊生物。
水母是無脊椎動物﹐屬於腔腸門中的一員。

2. 有jellyfish or 有algae先?
据我所知,應該是有algae先。

“地球生物的起源,生命的進化是
先有水,后有植物;
先有植物,后有動物的。”

凴這個定論,我們就可以總結:
先有algae,后有jellyfish。
因爲algae(海藻)是植物;jellyfish(水母)是動物。

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關於jellyfish的資料:
English-
http://en.wikipedia.org/wiki/Jellyfish
中文-
http://zh.wikipedia.org/w/index.php?title=%E6%B0%B4%E6%AF%8D&variant=zh-tw

關於algae的資料:
English-
http://en.wikipedia.org/wiki/Algae
中文-
http://zh.wikipedia.org/w/index.php?title=%E6%B5%B7%E8%97%BB&variant=zh-tw
2009-01-25 3:53 am
jellyfish belongs to which group ?

水母係無脊椎動物
無節肢類無脊椎動物(包括水母﹑水蛭、蚯蚓、海星﹑章魚和蝸牛等),可大致分為蠕蟲類和非蠕蟲類。蠕蟲類的動物又分為環節動物和非環節動物。下圖所示為無脊椎動物的分類情況。 從黑暗的海底深處到高山頂端﹐無脊椎動物生活在地球的各個角落。牠們是地球上最早出現的動物類群之一﹐早在十億年前已經存在了。

海藻同水母都係早在十億年前已經存在了,但係我吾清楚有水母定係有海藻 先,I AM sOrry~
參考: Myself = ]


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