分類
國中 解答
共 121,118 題
「那一年森林發生火災,很多樹木焚燒後,都死亡了,鳥類、昆蟲與松鼠等消失了,大地一片寂靜。大雨後,草出現了,漸漸的雜草叢生,昆蟲回來了,一段時間後,灌木回來了,雜草也漸漸被灌木所取代;多年後,喬木也回來了,鳥類與松鼠也回來了,大家都回來了,這被火所焚身的森林又復活了......」以上為某登山客的隨手雜記。請問這段文章是在描述下列何種現象?
生態系多樣性
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丁類生物用完善的育幼行為來確保下一代的存活率 「櫻花鉤吻鮭目前在雪霸國家公園進行復育,這幾年群族數量增加。然而專家表示數量多不代表復育成功,因為人為野放,櫻花鉤吻鮭的基因均質化,很有可能因為一次環境的變動或疾病使得整個族群消失,要如何增加瀕臨絕種生物的□□多樣性一直是研究人員的一大挑戰。」請問空格內應填入?
如表為各種動物的特徵資訊,請問爬蟲類應為哪種動物?
多多想知道學校烤肉區有多少株含羞草,因此將烤肉區劃分成20塊小樣區,隨機計算其中5區內的含羞草,發現數量分別是15、17、25、22、21株。請依此估算烤肉區內含羞草總數大約是:
以下生物哪些為外來種?(甲)秋行軍蟲(乙)牛蛙(丙)台灣山椒魚(丁)小花蔓澤蘭(戊)布袋蓮 (己)火冠戴菊鳥。
乙丙丁戊
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各國遵守聯合國氣候變遷綱要公約 承上題,以下作法那些可以減緩碳循環失衡的狀況?(甲)自備環保杯、餐具(乙)搭乘大眾交通 工具(丙)落實資源回收(丁)減少用電(戊)減少購買、消費
造成溫室效應
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空氣中的O2濃度快速升高 承上題,碳循環失衡不可能造成以下何種結果?
Who tried to help John back at that time?
B: That’s a good idea. ( remind...of...讓...回想起... look like長得像 pass away 過世 41.
0It takes hands to build a house, but only ________ can build a home.
See? My coat is ________ with sweat. I need to take it off.
I am so hungry. I can eat a(n) ________ now.
The sky looks very dark. I think it will ________ soon.
Elizabeth ________ a card for her teacher because it was Teacher’s Day.
Victor enjoyed popular music before, _________ now he doesn’t like it.
Tierra: ________ was the picnic? James: It was great! We ate a lot of food and had a nice chat.
I didn’t have enough sleep last night, _________ I am tired today.
Kristine is a very _________ person. She always helps people when they are in trouble.
______ Diana ate two bowls of rice, she was full.
Amber: Who ate the pancakes on the table? Ben: I __________. They were so yummy.
John: __________ you late for school this morning? Veronica: Yes, I got up after 7:00 this morning.
I don’t see my elementary school classmates for a long time. I really __________ them.
Because he wasn’t careful enough, something bad __________.
Lydia’s mother __________ bedtime stories to her when she was little. She enjoyed the stories very much.